def __init__(self,
default_settings=None,
load_settings=True,
retry_timedelta=datetime.timedelta(days=1),
environ=os.environ):
self._environ = environ
self.default_settings = {
'section': "default",
'run': "latest",
'git_remote': "origin",
'ignore_globs': [],
'base_url': "https://api.wandb.ai"
}
self.retry_timedelta = retry_timedelta
self.default_settings.update(default_settings or {})
self._settings = None
self.retry_uploads = 10
self.settings_parser = configparser.ConfigParser()
if load_settings:
potential_settings_paths = [
os.path.expanduser('~/.wandb/settings')
]
potential_settings_paths.append(
os.path.join(wandb_dir(), 'settings'))
files = self.settings_parser.read(potential_settings_paths)
self.settings_file = files[0] if len(files) > 0 else "Not found"
else:
self.settings_file = "Not found"
self.git = GitRepo(remote=self.settings("git_remote"))
# Mutable settings set by the _file_stream_api
self.dynamic_settings = {
'system_sample_seconds': 2,
'system_samples': 15,
'heartbeat_seconds': 30,
}
self.client = Client(transport=RequestsHTTPTransport(
headers={
'User-Agent': self.user_agent,
'X-WANDB-USERNAME': env.get_username(env=self._environ)
},
use_json=True,
# this timeout won't apply when the DNS lookup fails. in that case, it will be 60s
# https://bugs.python.org/issue22889
timeout=self.HTTP_TIMEOUT,
auth=("api", self.api_key or ""),
url='%s/graphql' % self.settings('base_url')))
self.gql = retry.Retry(
self.execute,
retry_timedelta=retry_timedelta,
check_retry_fn=util.no_retry_auth,
retryable_exceptions=(RetryError, requests.RequestException))
self._current_run_id = None
self._file_stream_api = None
def __init__(self,
default_settings=None,
load_settings=True,
retry_timedelta=datetime.timedelta(days=1)):
self.default_settings = {
'section': "default",
'entity': "models",
'run': "latest",
'git_remote': "origin",
'git_tag': False,
'base_url': "https://api.wandb.ai"
}
self.retry_timedelta = retry_timedelta
self.default_settings.update(default_settings or {})
self._settings = None
self.retries = 3
self._settings_parser = configparser.ConfigParser()
self.tagged = False
if load_settings:
potential_settings_paths = [
os.path.expanduser('~/.wandb/settings')
]
potential_settings_paths.append(
os.path.join(wandb_dir(), 'settings'))
files = self._settings_parser.read(potential_settings_paths)
self.settings_file = files[0] if len(files) > 0 else "Not found"
else:
self.settings_file = "Not found"
self.git = GitRepo(remote=self.settings("git_remote"))
client = Client(retries=1,
transport=RequestsHTTPTransport(
headers={'User-Agent': self.user_agent},
use_json=True,
timeout=self.HTTP_TIMEOUT,
auth=("api", self.api_key),
url='%s/graphql' % self.settings('base_url')))
# 1-day worth of retry
self.gql = retry.Retry(client.execute,
retry_timedelta=retry_timedelta,
retryable_exceptions=(RetryError,
requests.HTTPError))
self._current_run_id = None
self._file_stream_api = None
def git_repo():
with CliRunner().isolated_filesystem():
r = git.Repo.init(".")
os.mkdir("wandb")
# Because the forked process doesn't use my monkey patch above
with open("wandb/settings", "w") as f:
f.write("[default]\nproject: test")
open("README", "wb").close()
r.index.add(["README"])
r.index.commit("Initial commit")
yield GitRepo(lazy=False)
class Api(object):
"""W&B Internal Api wrapper
Note:
Settings are automatically overridden by looking for
a `wandb/settings` file in the current working directory or it's parent
directory. If none can be found, we look in the current users home
directory.
Args:
default_settings(:obj:`dict`, optional): If you aren't using a settings
file or you wish to override the section to use in the settings file
Override the settings here.
"""
HTTP_TIMEOUT = env.get_http_timeout(10)
def __init__(self, default_settings=None, load_settings=True, retry_timedelta=datetime.timedelta(days=1), environ=os.environ):
self._environ = environ
self.default_settings = {
'section': "default",
'run': "latest",
'git_remote': "origin",
'ignore_globs': [],
'base_url': "https://api.wandb.ai"
}
self.retry_timedelta = retry_timedelta
self.default_settings.update(default_settings or {})
self.retry_uploads = 10
self._settings = Settings(load_settings=load_settings)
self.git = GitRepo(remote=self.settings("git_remote"))
# Mutable settings set by the _file_stream_api
self.dynamic_settings = {
'system_sample_seconds': 2,
'system_samples': 15,
'heartbeat_seconds': 30,
}
self.client = Client(
transport=RequestsHTTPTransport(
headers={'User-Agent': self.user_agent, 'X-WANDB-USERNAME': env.get_username(env=self._environ)},
use_json=True,
# this timeout won't apply when the DNS lookup fails. in that case, it will be 60s
# https://bugs.python.org/issue22889
timeout=self.HTTP_TIMEOUT,
auth=("api", self.api_key or ""),
url='%s/graphql' % self.settings('base_url')
)
)
self.gql = retry.Retry(self.execute,
retry_timedelta=retry_timedelta,
check_retry_fn=util.no_retry_auth,
retryable_exceptions=(RetryError, requests.RequestException))
self._current_run_id = None
self._file_stream_api = None
def reauth(self):
"""Ensures the current api key is set in the transport"""
self.client.transport.auth = ("api", self.api_key or "")
def execute(self, *args, **kwargs):
"""Wrapper around execute that logs in cases of failure."""
try:
return self.client.execute(*args, **kwargs)
except requests.exceptions.HTTPError as err:
res = err.response
logger.error("%s response executing GraphQL." % res.status_code)
logger.error(res.text)
self.display_gorilla_error_if_found(res)
six.reraise(*sys.exc_info())
def display_gorilla_error_if_found(self, res):
try:
data = res.json()
except ValueError:
return
if 'errors' in data and isinstance(data['errors'], list):
for err in data['errors']:
if not err.get('message'):
continue
wandb.termerror('Error while calling W&B API: {} ({})'.format(err['message'], res))
def disabled(self):
return self._settings.get(Settings.DEFAULT_SECTION, 'disabled', fallback=False)
def sync_spell(self, run, env=None):
"""Syncs this run with spell"""
try:
env = env or os.environ
run.config._set_wandb("spell_url", env.get("SPELL_RUN_URL"))
run.config.persist()
try:
url = run.get_url()
except CommError as e:
wandb.termerror("Unable to register run with spell.run: %s" % e.message)
return False
return requests.put(env.get("SPELL_API_URL", "https://api.spell.run") + "/wandb_url", json={
"access_token": env.get("WANDB_ACCESS_TOKEN"),
"url": url
}, timeout=2)
except requests.RequestException:
return False
def save_pip(self, out_dir):
"""Saves the current working set of pip packages to requirements.txt"""
try:
import pkg_resources
installed_packages = [d for d in iter(pkg_resources.working_set)]
installed_packages_list = sorted(
["%s==%s" % (i.key, i.version) for i in installed_packages]
)
with open(os.path.join(out_dir, 'requirements.txt'), 'w') as f:
f.write("\n".join(installed_packages_list))
except Exception as e:
logger.error("Error saving pip packages")
def save_patches(self, out_dir):
"""Save the current state of this repository to one or more patches.
Makes one patch against HEAD and another one against the most recent
commit that occurs in an upstream branch. This way we can be robust
to history editing as long as the user never does "push -f" to break
history on an upstream branch.
Writes the first patch to <out_dir>/diff.patch and the second to
<out_dir>/upstream_diff_<commit_id>.patch.
Args:
out_dir (str): Directory to write the patch files.
"""
if not self.git.enabled:
return False
try:
root = self.git.root
if self.git.dirty:
patch_path = os.path.join(out_dir, 'diff.patch')
if self.git.has_submodule_diff:
with open(patch_path, 'wb') as patch:
# we diff against HEAD to ensure we get changes in the index
subprocess.check_call(
['git', 'diff', '--submodule=diff', 'HEAD'], stdout=patch, cwd=root, timeout=5)
else:
with open(patch_path, 'wb') as patch:
subprocess.check_call(
['git', 'diff', 'HEAD'], stdout=patch, cwd=root, timeout=5)
upstream_commit = self.git.get_upstream_fork_point()
if upstream_commit and upstream_commit != self.git.repo.head.commit:
sha = upstream_commit.hexsha
upstream_patch_path = os.path.join(
out_dir, 'upstream_diff_{}.patch'.format(sha))
if self.git.has_submodule_diff:
with open(upstream_patch_path, 'wb') as upstream_patch:
subprocess.check_call(
['git', 'diff', '--submodule=diff', sha], stdout=upstream_patch, cwd=root, timeout=5)
else:
with open(upstream_patch_path, 'wb') as upstream_patch:
subprocess.check_call(
['git', 'diff', sha], stdout=upstream_patch, cwd=root, timeout=5)
# TODO: A customer saw `ValueError: Reference at 'refs/remotes/origin/foo' does not exist`
# so we now catch ValueError. Catching this error feels too generic.
except (ValueError, subprocess.CalledProcessError, subprocess.TimeoutExpired) as e:
logger.error('Error generating diff: %s' % e)
def set_current_run_id(self, run_id):
self._current_run_id = run_id
@property
def current_run_id(self):
return self._current_run_id
@property
def user_agent(self):
return 'W&B Internal Client %s' % __version__
@property
def api_key(self):
auth = requests.utils.get_netrc_auth(self.api_url)
key = None
if auth:
key = auth[-1]
# Environment should take precedence
if self._environ.get(env.API_KEY):
key = self._environ.get(env.API_KEY)
return key
@property
def api_url(self):
return self.settings('base_url')
@property
def app_url(self):
api_url = self.api_url
# Development
if api_url.endswith('.test') or self.settings().get("dev_prod"):
return 'http://app.test'
# On-prem VM
if api_url.endswith(':11001'):
return api_url.replace(':11001', ':11000')
# Normal
if api_url.startswith('https://api.'):
return api_url.replace('api.', 'app.')
# Unexpected
return api_url
def settings(self, key=None, section=None):
"""The settings overridden from the wandb/settings file.
Args:
key (str, optional): If provided only this setting is returned
section (str, optional): If provided this section of the setting file is
used, defaults to "default"
Returns:
A dict with the current settings
{
"entity": "models",
"base_url": "https://api.wandb.ai",
"project": None
}
"""
result = self.default_settings.copy()
result.update(self._settings.items(section=section))
result.update({
'entity': env.get_entity(
self._settings.get(Settings.DEFAULT_SECTION, "entity", fallback=result.get('entity')),
env=self._environ),
'project': env.get_project(
self._settings.get(Settings.DEFAULT_SECTION, "project", fallback=result.get('project')),
env=self._environ),
'base_url': env.get_base_url(
self._settings.get(Settings.DEFAULT_SECTION, "base_url", fallback=result.get('base_url')),
env=self._environ),
'ignore_globs': env.get_ignore(
self._settings.get(Settings.DEFAULT_SECTION, "ignore_globs", fallback=result.get('ignore_globs')),
env=self._environ),
})
return result if key is None else result[key]
def clear_setting(self, key):
self._settings.clear(Settings.DEFAULT_SECTION, key)
def set_setting(self, key, value, globally=False):
self._settings.set(Settings.DEFAULT_SECTION, key, value, globally=globally)
if key == 'entity':
env.set_entity(value, env=self._environ)
elif key == 'project':
env.set_project(value, env=self._environ)
def parse_slug(self, slug, project=None, run=None):
if slug and "/" in slug:
parts = slug.split("/")
project = parts[0]
run = parts[1]
else:
project = project or self.settings().get("project")
if project is None:
raise CommError("No default project configured.")
run = run or slug or env.get_run(env=self._environ)
if run is None:
run = "latest"
return (project, run)
@normalize_exceptions
def viewer(self):
query = gql('''
query Viewer{
viewer {
id
entity
teams {
edges {
node {
name
}
}
}
}
}
''')
res = self.gql(query)
return res.get('viewer') or {}
@normalize_exceptions
def list_projects(self, entity=None):
"""Lists projects in W&B scoped by entity.
Args:
entity (str, optional): The entity to scope this project to.
Returns:
[{"id","name","description"}]
"""
query = gql('''
query Models($entity: String!) {
models(first: 10, entityName: $entity) {
edges {
node {
id
name
description
}
}
}
}
''')
return self._flatten_edges(self.gql(query, variable_values={
'entity': entity or self.settings('entity')})['models'])
@normalize_exceptions
def project(self, project, entity=None):
"""Retrive project
Args:
project (str): The project to get details for
entity (str, optional): The entity to scope this project to.
Returns:
[{"id","name","repo","dockerImage","description"}]
"""
query = gql('''
query Models($entity: String, $project: String!) {
model(name: $project, entityName: $entity) {
id
name
repo
dockerImage
description
}
}
''')
return self.gql(query, variable_values={
'entity': entity, 'project': project})['model']
@normalize_exceptions
def sweep(self, sweep, specs, project=None, entity=None):
"""Retrieve sweep.
Args:
sweep (str): The sweep to get details for
specs (str): history specs
project (str, optional): The project to scope this sweep to.
entity (str, optional): The entity to scope this sweep to.
Returns:
[{"id","name","repo","dockerImage","description"}]
"""
query = gql('''
query Models($entity: String, $project: String!, $sweep: String!, $specs: [JSONString!]!) {
model(name: $project, entityName: $entity) {
sweep(sweepName: $sweep) {
id
name
method
state
description
config
createdAt
heartbeatAt
updatedAt
earlyStopJobRunning
bestLoss
controller
scheduler
runs {
edges {
node {
name
state
config
exitcode
heartbeatAt
shouldStop
failed
stopped
running
summaryMetrics
sampledHistory(specs: $specs)
}
}
}
}
}
}
''')
data = self.gql(query, variable_values={
'entity': entity or self.settings('entity'), 'project': project or self.settings('project'), 'sweep': sweep, 'specs': specs})['model']['sweep']
if data:
data['runs'] = self._flatten_edges(data['runs'])
return data
@normalize_exceptions
def list_runs(self, project, entity=None):
"""Lists runs in W&B scoped by project.
Args:
project (str): The project to scope the runs to
entity (str, optional): The entity to scope this project to. Defaults to public models
Returns:
[{"id",name","description"}]
"""
query = gql('''
query Buckets($model: String!, $entity: String!) {
model(name: $model, entityName: $entity) {
buckets(first: 10) {
edges {
node {
id
name
displayName
description
}
}
}
}
}
''')
return self._flatten_edges(self.gql(query, variable_values={
'entity': entity or self.settings('entity'),
'model': project or self.settings('project')})['model']['buckets'])
@normalize_exceptions
def launch_run(self, command, project=None, entity=None, run_id=None):
"""Launch a run in the cloud.
Args:
command (str): The command to run
program (str): The file to run
project (str): The project to scope the runs to
entity (str, optional): The entity to scope this project to. Defaults to public models
run_id (str, optional): The run_id to scope to
Returns:
[{"podName","status"}]
"""
query = gql('''
mutation launchRun(
$entity: String
$model: String
$runId: String
$image: String
$command: String
$patch: String
$cwd: String
$datasets: [String]
) {
launchRun(input: {id: $runId, entityName: $entity, patch: $patch, modelName: $model,
image: $image, command: $command, datasets: $datasets, cwd: $cwd}) {
podName
status
runId
}
}
''')
patch = BytesIO()
if self.git.dirty:
self.git.repo.git.execute(['git', 'diff'], output_stream=patch)
patch.seek(0)
cwd = "."
if self.git.enabled:
cwd = cwd + os.getcwd().replace(self.git.repo.working_dir, "")
return self.gql(query, variable_values={
'entity': entity or self.settings('entity'),
'model': project or self.settings('project'),
'command': command,
'runId': run_id,
'patch': patch.read().decode("utf8"),
'cwd': cwd
})
@normalize_exceptions
def run_config(self, project, run=None, entity=None):
"""Get the relevant configs for a run
Args:
project (str): The project to download, (can include bucket)
run (str, optional): The run to download
entity (str, optional): The entity to scope this project to.
"""
query = gql('''
query Model($name: String!, $entity: String!, $run: String!) {
model(name: $name, entityName: $entity) {
bucket(name: $run) {
config
commit
patch
files(names: ["wandb-metadata.json"]) {
edges {
node {
url
}
}
}
}
}
}
''')
response = self.gql(query, variable_values={
'name': project, 'run': run, 'entity': entity
})
if response['model'] == None:
raise ValueError("Run {}/{}/{} not found".format(entity, project, run) )
run = response['model']['bucket']
commit = run['commit']
patch = run['patch']
config = json.loads(run['config'] or '{}')
if len(run['files']['edges']) > 0:
url = run['files']['edges'][0]['node']['url']
res = requests.get(url)
res.raise_for_status()
metadata = res.json()
else:
metadata = {}
return (commit, config, patch, metadata)
@normalize_exceptions
def run_resume_status(self, entity, project_name, name):
"""Check if a run exists and get resume information.
Args:
entity (str, optional): The entity to scope this project to.
project_name (str): The project to download, (can include bucket)
run (str, optional): The run to download
"""
query = gql('''
query Model($project: String!, $entity: String, $name: String!) {
model(name: $project, entityName: $entity) {
id
name
entity {
id
name
}
bucket(name: $name, missingOk: true) {
id
name
summaryMetrics
displayName
logLineCount
historyLineCount
eventsLineCount
historyTail
eventsTail
config
}
}
}
''')
response = self.gql(query, variable_values={
'entity': entity, 'project': project_name, 'name': name,
})
if 'model' not in response or 'bucket' not in (response['model'] or {}):
return None
project = response['model']
self.set_setting('project', project_name)
if 'entity' in project:
self.set_setting('entity', project['entity']['name'])
return project['bucket']
@normalize_exceptions
def check_stop_requested(self, project_name, entity_name, run_id):
query = gql('''
query Model($projectName: String, $entityName: String, $runId: String!) {
project(name:$projectName, entityName:$entityName) {
run(name:$runId) {
stopped
}
}
}
''')
response = self.gql(query, variable_values={
'projectName': project_name, 'entityName': entity_name, 'runId': run_id,
})
project = response.get('project', None)
if not project:
return False
run = project.get('run', None)
if not run:
return False
return run['stopped']
def format_project(self, project):
return re.sub(r'\W+', '-', project.lower()).strip("-_")
@normalize_exceptions
def upsert_project(self, project, id=None, description=None, entity=None):
"""Create a new project
Args:
project (str): The project to create
description (str, optional): A description of this project
entity (str, optional): The entity to scope this project to.
"""
mutation = gql('''
mutation UpsertModel($name: String!, $id: String, $entity: String!, $description: String, $repo: String) {
upsertModel(input: { id: $id, name: $name, entityName: $entity, description: $description, repo: $repo }) {
model {
name
description
}
}
}
''')
response = self.gql(mutation, variable_values={
'name': self.format_project(project), 'entity': entity or self.settings('entity'),
'description': description, 'repo': self.git.remote_url, 'id': id})
return response['upsertModel']['model']
@normalize_exceptions
def upsert_run(self, id=None, name=None, project=None, host=None,
group=None, tags=None,
config=None, description=None, entity=None, state=None,
display_name=None, notes=None,
repo=None, job_type=None, program_path=None, commit=None,
sweep_name=None, summary_metrics=None, num_retries=None):
"""Update a run
Args:
id (str, optional): The existing run to update
name (str, optional): The name of the run to create
group (str, optional): Name of the group this run is a part of
project (str, optional): The name of the project
config (dict, optional): The latest config params
description (str, optional): A description of this project
entity (str, optional): The entity to scope this project to.
repo (str, optional): Url of the program's repository.
state (str, optional): State of the program.
job_type (str, optional): Type of job, e.g 'train'.
program_path (str, optional): Path to the program.
commit (str, optional): The Git SHA to associate the run with
summary_metrics (str, optional): The JSON summary metrics
"""
mutation = gql('''
mutation UpsertBucket(
$id: String, $name: String,
$project: String,
$entity: String!,
$groupName: String,
$description: String,
$displayName: String,
$notes: String,
$commit: String,
$config: JSONString,
$host: String,
$debug: Boolean,
$program: String,
$repo: String,
$jobType: String,
$state: String,
$sweep: String,
$tags: [String!],
$summaryMetrics: JSONString,
) {
upsertBucket(input: {
id: $id,
name: $name,
groupName: $groupName,
modelName: $project,
entityName: $entity,
description: $description,
displayName: $displayName,
notes: $notes,
config: $config,
commit: $commit,
host: $host,
debug: $debug,
jobProgram: $program,
jobRepo: $repo,
jobType: $jobType,
state: $state,
sweep: $sweep,
tags: $tags,
summaryMetrics: $summaryMetrics,
}) {
bucket {
id
name
displayName
description
config
project {
id
name
entity {
id
name
}
}
}
}
}
''')
if config is not None:
config = json.dumps(config)
if not description or description.isspace():
description = None
kwargs = {}
if num_retries is not None:
kwargs['num_retries'] = num_retries
variable_values = {
'id': id, 'entity': entity or self.settings('entity'), 'name': name, 'project': project,
'groupName': group, 'tags': tags,
'description': description, 'config': config, 'commit': commit,
'displayName': display_name, 'notes': notes,
'host': None if self.settings().get('anonymous') == 'true' else host,
'debug': env.is_debug(env=self._environ), 'repo': repo, 'program': program_path, 'jobType': job_type,
'state': state, 'sweep': sweep_name, 'summaryMetrics': summary_metrics
}
response = self.gql(
mutation, variable_values=variable_values, **kwargs)
run = response['upsertBucket']['bucket']
project = run.get('project')
if project:
self.set_setting('project', project['name'])
entity = project.get('entity')
if entity:
self.set_setting('entity', entity['name'])
return response['upsertBucket']['bucket']
@normalize_exceptions
def upload_urls(self, project, files, run=None, entity=None, description=None):
"""Generate temporary resumeable upload urls
Args:
project (str): The project to download
files (list or dict): The filenames to upload
run (str, optional): The run to upload to
entity (str, optional): The entity to scope this project to. Defaults to wandb models
Returns:
(bucket_id, file_info)
bucket_id: id of bucket we uploaded to
file_info: A dict of filenames and urls, also indicates if this revision already has uploaded files.
{
'weights.h5': { "url": "https://weights.url" },
'model.json': { "url": "https://model.json", "updatedAt": '2013-04-26T22:22:23.832Z', 'md5': 'mZFLkyvTelC5g8XnyQrpOw==' },
}
"""
query = gql('''
query Model($name: String!, $files: [String]!, $entity: String!, $run: String!, $description: String) {
model(name: $name, entityName: $entity) {
bucket(name: $run, desc: $description) {
id
files(names: $files) {
edges {
node {
name
url(upload: true)
updatedAt
}
}
}
}
}
}
''')
run_id = run or self.settings('run')
entity = entity or self.settings('entity')
query_result = self.gql(query, variable_values={
'name': project, 'run': run_id,
'entity': entity,
'description': description,
'files': [file for file in files]
})
run = query_result['model']['bucket']
if run:
result = {file['name']: file for file in self._flatten_edges(run['files'])}
return run['id'], result
else:
raise CommError("Run does not exist {}/{}/{}.".format(entity, project, run_id))
@normalize_exceptions
def download_urls(self, project, run=None, entity=None):
"""Generate download urls
Args:
project (str): The project to download
run (str, optional): The run to upload to
entity (str, optional): The entity to scope this project to. Defaults to wandb models
Returns:
A dict of extensions and urls
{
'weights.h5': { "url": "https://weights.url", "updatedAt": '2013-04-26T22:22:23.832Z', 'md5': 'mZFLkyvTelC5g8XnyQrpOw==' },
'model.json': { "url": "https://model.url", "updatedAt": '2013-04-26T22:22:23.832Z', 'md5': 'mZFLkyvTelC5g8XnyQrpOw==' }
}
"""
query = gql('''
query Model($name: String!, $entity: String!, $run: String!) {
model(name: $name, entityName: $entity) {
bucket(name: $run) {
files {
edges {
node {
name
url
md5
updatedAt
}
}
}
}
}
}
''')
query_result = self.gql(query, variable_values={
'name': project, 'run': run or self.settings('run'),
'entity': entity or self.settings('entity')})
files = self._flatten_edges(query_result['model']['bucket']['files'])
return {file['name']: file for file in files if file}
@normalize_exceptions
def download_url(self, project, file_name, run=None, entity=None):
"""Generate download urls
Args:
project (str): The project to download
file_name (str): The name of the file to download
run (str, optional): The run to upload to
entity (str, optional): The entity to scope this project to. Defaults to wandb models
Returns:
A dict of extensions and urls
{ "url": "https://weights.url", "updatedAt": '2013-04-26T22:22:23.832Z', 'md5': 'mZFLkyvTelC5g8XnyQrpOw==' }
"""
query = gql('''
query Model($name: String!, $fileName: String!, $entity: String!, $run: String!) {
model(name: $name, entityName: $entity) {
bucket(name: $run) {
files(names: [$fileName]) {
edges {
node {
name
url
md5
updatedAt
}
}
}
}
}
}
''')
query_result = self.gql(query, variable_values={
'name': project, 'run': run or self.settings('run'), 'fileName': file_name,
'entity': entity or self.settings('entity')})
if query_result['model']:
files = self._flatten_edges(query_result['model']['bucket']['files'])
return files[0] if len(files) > 0 and files[0].get('updatedAt') else None
else:
return None
@normalize_exceptions
def download_file(self, url):
"""Initiate a streaming download
Args:
url (str): The url to download
Returns:
A tuple of the content length and the streaming response
"""
response = requests.get(url, stream=True)
response.raise_for_status()
return (int(response.headers.get('content-length', 0)), response)
@normalize_exceptions
def download_write_file(self, metadata, out_dir=None):
"""Download a file from a run and write it to wandb/
Args:
metadata (obj): The metadata object for the file to download. Comes from Api.download_urls().
Returns:
A tuple of the file's local path and the streaming response. The streaming response is None if the file already existed and was up to date.
"""
fileName = metadata['name']
path = os.path.join(out_dir or wandb_dir(), fileName)
if self.file_current(fileName, metadata['md5']):
return path, None
size, response = self.download_file(metadata['url'])
with open(path, "wb") as file:
for data in response.iter_content(chunk_size=1024):
file.write(data)
return path, response
def upload_file(self, url, file, callback=None, extra_headers={}):
"""Uploads a file to W&B with failure resumption
Args:
url (str): The url to download
file (str): The path to the file you want to upload
callback (:obj:`func`, optional): A callback which is passed the number of
bytes uploaded since the last time it was called, used to report progress
Returns:
The requests library response object
"""
extra_headers = extra_headers.copy()
response = None
progress = Progress(file, callback=callback)
if progress.len == 0:
raise CommError("%s is an empty file" % file.name)
try:
response = requests.put(
url, data=progress, headers=extra_headers)
response.raise_for_status()
except requests.exceptions.RequestException as e:
status_code = e.response.status_code if e.response != None else 0
# Retry errors from cloud storage or local network issues
if status_code in (308, 409, 429, 500, 502, 503, 504) or isinstance(e, (requests.exceptions.Timeout, requests.exceptions.ConnectionError)):
util.sentry_reraise(retry.TransientException(exc=e))
else:
util.sentry_reraise(e)
return response
upload_file_retry = normalize_exceptions(retry.retriable(num_retries=5)(upload_file))
@normalize_exceptions
def register_agent(self, host, sweep_id=None, project_name=None, entity=None):
"""Register a new agent
Args:
host (str): hostname
persistent (bool): long running or oneoff
sweep (str): sweep id
project_name: (str): model that contains sweep
"""
mutation = gql('''
mutation CreateAgent(
$host: String!
$projectName: String!,
$entityName: String!,
$sweep: String!
) {
createAgent(input: {
host: $host,
projectName: $projectName,
entityName: $entityName,
sweep: $sweep,
}) {
agent {
id
}
}
}
''')
if entity is None:
entity = self.settings("entity")
if project_name is None:
project_name = self.settings('project')
# don't retry on validation or not found errors
def no_retry_4xx(e):
if not isinstance(e, requests.HTTPError):
return True
if not(e.response.status_code >= 400 and e.response.status_code < 500):
return True
body = json.loads(e.response.content)
raise UsageError(body['errors'][0]['message'])
response = self.gql(mutation, variable_values={
'host': host,
'entityName': entity,
'projectName': project_name,
'sweep': sweep_id}, check_retry_fn=no_retry_4xx)
return response['createAgent']['agent']
def agent_heartbeat(self, agent_id, metrics, run_states):
"""Notify server about agent state, receive commands.
Args:
agent_id (str): agent_id
metrics (dict): system metrics
run_states (dict): run_id: state mapping
Returns:
List of commands to execute.
"""
mutation = gql('''
mutation Heartbeat(
$id: ID!,
$metrics: JSONString,
$runState: JSONString
) {
agentHeartbeat(input: {
id: $id,
metrics: $metrics,
runState: $runState
}) {
agent {
id
}
commands
}
}
''')
try:
response = self.gql(mutation, variable_values={
'id': agent_id,
'metrics': json.dumps(metrics),
'runState': json.dumps(run_states)})
except Exception as e:
# GQL raises exceptions with stringified python dictionaries :/
message = ast.literal_eval(e.args[0])["message"]
logger.error('Error communicating with W&B: %s', message)
return []
else:
return json.loads(response['agentHeartbeat']['commands'])
@normalize_exceptions
def upsert_sweep(self, config, controller=None, scheduler=None, obj_id=None, project=None, entity=None):
"""Upsert a sweep object.
Args:
config (str): sweep config (will be converted to yaml)
"""
project_query = '''
project {
id
name
entity {
id
name
}
}
'''
mutation_str = '''
mutation UpsertSweep(
$id: ID,
$config: String,
$description: String,
$entityName: String!,
$projectName: String!,
$controller: JSONString,
$scheduler: JSONString
) {
upsertSweep(input: {
id: $id,
config: $config,
description: $description,
entityName: $entityName,
projectName: $projectName,
controller: $controller,
scheduler: $scheduler
}) {
sweep {
name
_PROJECT_QUERY_
}
}
}
'''
# FIXME(jhr): we need protocol versioning to know schema is not supported
# for now we will just try both new and old query
mutation_new = gql(mutation_str.replace("_PROJECT_QUERY_", project_query))
mutation_old = gql(mutation_str.replace("_PROJECT_QUERY_", ""))
# don't retry on validation errors
# TODO(jhr): generalize error handling routines
def no_retry_4xx(e):
if not isinstance(e, requests.HTTPError):
return True
if not(e.response.status_code >= 400 and e.response.status_code < 500):
return True
body = json.loads(e.response.content)
raise UsageError(body['errors'][0]['message'])
for mutation in mutation_new, mutation_old:
try:
response = self.gql(mutation, variable_values={
'id': obj_id,
'config': yaml.dump(config),
'description': config.get("description"),
'entityName': entity or self.settings("entity"),
'projectName': project or self.settings("project"),
'controller': controller,
'scheduler': scheduler},
check_retry_fn=no_retry_4xx)
except UsageError as e:
raise(e)
except Exception as e:
# graphql schema exception is generic
err = e
continue
err = None
break
if err:
raise(err)
sweep = response['upsertSweep']['sweep']
project = sweep.get('project')
if project:
self.set_setting('project', project['name'])
entity = project.get('entity')
if entity:
self.set_setting('entity', entity['name'])
return response['upsertSweep']['sweep']['name']
@normalize_exceptions
def create_anonymous_api_key(self):
"""Creates a new API key belonging to a new anonymous user."""
mutation = gql('''
mutation CreateAnonymousApiKey {
createAnonymousEntity(input: {}) {
apiKey {
name
}
}
}
''')
response = self.gql(mutation, variable_values={})
return response['createAnonymousEntity']['apiKey']['name']
def file_current(self, fname, md5):
"""Checksum a file and compare the md5 with the known md5
"""
return os.path.isfile(fname) and util.md5_file(fname) == md5
@normalize_exceptions
def pull(self, project, run=None, entity=None):
"""Download files from W&B
Args:
project (str): The project to download
run (str, optional): The run to upload to
entity (str, optional): The entity to scope this project to. Defaults to wandb models
Returns:
The requests library response object
"""
project, run = self.parse_slug(project, run=run)
urls = self.download_urls(project, run, entity)
responses = []
for fileName in urls:
_, response = self.download_write_file(urls[fileName])
if response:
responses.append(response)
return responses
def get_project(self):
return self.settings('project')
@normalize_exceptions
def push(self, files, run=None, entity=None, project=None, description=None, force=True, progress=False):
"""Uploads multiple files to W&B
Args:
files (list or dict): The filenames to upload
run (str, optional): The run to upload to
entity (str, optional): The entity to scope this project to. Defaults to wandb models
project (str, optional): The name of the project to upload to. Defaults to the one in settings.
description (str, optional): The description of the changes
force (bool, optional): Whether to prevent push if git has uncommitted changes
progress (callable, or stream): If callable, will be called with (chunk_bytes,
total_bytes) as argument else if True, renders a progress bar to stream.
Returns:
The requests library response object
"""
if project is None:
project = self.get_project()
if project is None:
raise CommError("No project configured.")
if run is None:
run = self.current_run_id
# TODO(adrian): we use a retriable version of self.upload_file() so
# will never retry self.upload_urls() here. Instead, maybe we should
# make push itself retriable.
run_id, result = self.upload_urls(
project, files, run, entity, description)
responses = []
for file_name, file_info in result.items():
file_url = file_info['url']
# If the upload URL is relative, fill it in with the base URL,
# since its a proxied file store like the on-prem VM.
if file_url.startswith('/'):
file_url = '{}{}'.format(self.api_url, file_url)
try:
# To handle Windows paths
# TODO: this doesn't handle absolute paths...
normal_name = os.path.join(*file_name.split("/"))
open_file = files[file_name] if isinstance(
files, dict) else open(normal_name, "rb")
except IOError:
print("%s does not exist" % file_name)
continue
if progress:
if hasattr(progress, '__call__'):
responses.append(self.upload_file_retry(
file_url, open_file, progress))
else:
length = os.fstat(open_file.fileno()).st_size
with click.progressbar(file=progress, length=length, label='Uploading file: %s' % (file_name),
fill_char=click.style('&', fg='green')) as bar:
responses.append(self.upload_file_retry(
file_url, open_file, lambda bites, _: bar.update(bites)))
else:
responses.append(self.upload_file_retry(file_info['url'], open_file))
open_file.close()
return responses
def get_file_stream_api(self):
"""This creates a new file pusher thread. Call start to initiate the thread that talks to W&B"""
if not self._file_stream_api:
if self._current_run_id is None:
raise UsageError(
'Must have a current run to use file stream API.')
self._file_stream_api = FileStreamApi(self, self._current_run_id)
return self._file_stream_api
def _status_request(self, url, length):
"""Ask google how much we've uploaded"""
return requests.put(
url=url,
headers={'Content-Length': '0',
'Content-Range': 'bytes */%i' % length}
)
def _flatten_edges(self, response):
"""Return an array from the nested graphql relay structure"""
return [node['node'] for node in response['edges']]
class Api(object):
"""W&B Api wrapper
Note:
Settings are automatically overridden by looking for
a `wandb/settings` file in the current working directory or it's parent
directory. If none can be found, we look in the current users home
directory.
Args:
default_settings(:obj:`dict`, optional): If you aren't using a settings
file or you wish to override the section to use in the settings file
Override the settings here.
"""
HTTP_TIMEOUT = 10
def __init__(self, default_settings=None, load_settings=True, retry_timedelta=datetime.timedelta(1)):
self.default_settings = {
'section': "default",
'entity': "models",
'run': "latest",
'git_remote': "origin",
'git_tag': False,
'base_url': "https://api.wandb.ai"
}
self.retry_timedelta = retry_timedelta
self.default_settings.update(default_settings or {})
self._settings = None
self.retries = 3
self._settings_parser = configparser.ConfigParser()
self.tagged = False
if load_settings:
potential_settings_paths = [
os.path.expanduser('~/.wandb/settings')
]
potential_settings_paths.append(
os.path.join(wandb_dir(), 'settings'))
files = self._settings_parser.read(potential_settings_paths)
self.settings_file = files[0] if len(files) > 0 else "Not found"
else:
self.settings_file = "Not found"
self.git = GitRepo(remote=self.settings("git_remote"))
client = Client(
retries=1,
transport=RequestsHTTPTransport(
headers={'User-Agent': self.user_agent},
use_json=True,
timeout=self.HTTP_TIMEOUT,
auth=("api", self.api_key),
url='%s/graphql' % self.settings('base_url')
)
)
# 1-day worth of retry
self.gql = retry.Retry(client.execute, retry_timedelta=retry_timedelta,
retryable_exceptions=(RetryError, requests.HTTPError))
self._current_run_id = None
self._file_stream_api = None
def save_patches(self, out_dir):
"""Save the current state of this repository to one or more patches.
Makes one patch against HEAD and another one against the most recent
commit that occurs in an upstream branch. This way we can be robust
to history editing as long as the user never does "push -f" to break
history on an upstream branch.
Writes the first patch to <out_dir>/diff.patch and the second to
<out_dir>/upstream_diff_<commit_id>.patch.
Args:
out_dir (str): Directory to write the patch files.
"""
if not self.git.repo:
return False
try:
root = self.git.root
if self.git.dirty:
patch_path = os.path.join(out_dir, 'diff.patch')
if self.git.has_submodule_diff:
with open(patch_path, 'wb') as patch:
# we diff against HEAD to ensure we get changes in the index
subprocess.check_call(
['git', 'diff', '--submodule=diff', 'HEAD'], stdout=patch, cwd=root)
else:
with open(patch_path, 'wb') as patch:
subprocess.check_call(
['git', 'diff', 'HEAD'], stdout=patch, cwd=root)
upstream_commit = self.git.get_upstream_fork_point()
if upstream_commit and upstream_commit != self.git.repo.head.commit:
sha = upstream_commit.hexsha
upstream_patch_path = os.path.join(
out_dir, 'upstream_diff_{}.patch'.format(sha))
if self.git.has_submodule_diff:
with open(upstream_patch_path, 'wb') as upstream_patch:
subprocess.check_call(
['git', 'diff', '--submodule=diff', sha], stdout=upstream_patch, cwd=root)
else:
with open(upstream_patch_path, 'wb') as upstream_patch:
subprocess.check_call(
['git', 'diff', sha], stdout=upstream_patch, cwd=root)
except subprocess.CalledProcessError:
logger.error('Error generating diff')
def repo_remote_url(self):
# TODO: better failure handling
root = self.git.root
remote_url = self.git.remote_url
host = socket.gethostname()
# handle non-git directories
if not root:
root = os.path.abspath(os.getcwd())
remote_url = 'file://%s%s' % (host, root)
return remote_url
def set_current_run_id(self, run_id):
self._current_run_id = run_id
def ensure_configured(self):
# The WANDB_DEBUG check ensures tests still work.
if not os.getenv('WANDB_DEBUG') and not self.settings("project"):
wandb.termlog('wandb.init() called but system not configured.\n'
'Run "wandb init" or set environment variables to get started')
sys.exit(1)
@property
def current_run_id(self):
return self._current_run_id
@property
def user_agent(self):
return 'W&B Client %s' % __version__
@property
def api_key(self):
auth = requests.utils.get_netrc_auth(self.api_url)
if auth:
key = auth[-1]
else:
key = os.environ.get("WANDB_API_KEY")
return key
@property
def api_url(self):
return self.settings('base_url')
@property
def app_url(self):
api_url = self.api_url
if api_url.endswith('.test'):
return 'http://app.test'
elif api_url.endswith('wandb.ai'):
return 'https://app.wandb.ai'
else:
return api_url
def settings(self, key=None, section=None):
"""The settings overridden from the wandb/settings file.
Args:
key (str, optional): If provided only this setting is returned
section (str, optional): If provided this section of the setting file is
used, defaults to "default"
Returns:
A dict with the current settings
{
"entity": "models",
"base_url": "https://api.wandb.ai",
"project": None
}
"""
if not self._settings:
self._settings = self.default_settings.copy()
section = section or self._settings['section']
try:
if section in self._settings_parser.sections():
for option in self._settings_parser.options(section):
self._settings[option] = self._settings_parser.get(
section, option)
except configparser.InterpolationSyntaxError:
print("WARNING: Unable to parse settings file")
self._settings["project"] = os.environ.get("WANDB_PROJECT",
self._settings.get("project"))
self._settings["entity"] = os.environ.get("WANDB_ENTITY",
self._settings.get("entity"))
self._settings["base_url"] = os.environ.get("WANDB_BASE_URL",
self._settings.get("base_url"))
return self._settings if key is None else self._settings[key]
def parse_slug(self, slug, project=None, run=None):
if slug and "/" in slug:
parts = slug.split("/")
project = parts[0]
run = parts[1]
else:
project = project or self.settings().get("project")
if project is None:
raise CommError("No default project configured.")
run = run or slug or os.environ.get("WANDB_RUN")
if run is None:
run = "latest"
return (project, run)
@normalize_exceptions
def viewer(self):
query = gql('''
query Viewer{
viewer {
id
entity
teams {
edges {
node {
name
}
}
}
}
}
''')
res = self.gql(query)
return res.get('viewer', {})
@normalize_exceptions
def list_projects(self, entity=None):
"""Lists projects in W&B scoped by entity.
Args:
entity (str, optional): The entity to scope this project to. Defaults to public models
Returns:
[{"id","name","description"}]
"""
query = gql('''
query Models($entity: String!) {
models(first: 10, entityName: $entity) {
edges {
node {
id
name
description
}
}
}
}
''')
return self._flatten_edges(self.gql(query, variable_values={
'entity': entity or self.settings('entity')})['models'])
@normalize_exceptions
def list_runs(self, project, entity=None):
"""Lists runs in W&B scoped by project.
Args:
project (str): The project to scope the runs to
entity (str, optional): The entity to scope this project to. Defaults to public models
Returns:
[{"id",name","description"}]
"""
query = gql('''
query Buckets($model: String!, $entity: String!) {
model(name: $model, entityName: $entity) {
buckets(first: 10) {
edges {
node {
id
name
description
}
}
}
}
}
''')
return self._flatten_edges(self.gql(query, variable_values={
'entity': entity or self.settings('entity'),
'model': project or self.settings('project')})['model']['buckets'])
@normalize_exceptions
def launch_run(self, command, project=None, entity=None, run_id=None):
"""Launch a run in the cloud.
Args:
command (str): The command to run
program (str): The file to run
project (str): The project to scope the runs to
entity (str, optional): The entity to scope this project to. Defaults to public models
run_id (str, optional): The run_id to scope to
Returns:
[{"podName","status"}]
"""
query = gql('''
mutation launchRun(
$entity: String
$model: String
$runId: String
$image: String
$command: String
$patch: String
$cwd: String
$datasets: [String]
) {
launchRun(input: {id: $runId, entityName: $entity, patch: $patch, modelName: $model,
image: $image, command: $command, datasets: $datasets, cwd: $cwd}) {
podName
status
runId
}
}
''')
patch = BytesIO()
if self.git.dirty:
self.git.repo.git.execute(['git', 'diff'], output_stream=patch)
patch.seek(0)
cwd = "."
if self.git.enabled:
cwd = cwd + os.getcwd().replace(self.git.repo.working_dir, "")
return self.gql(query, variable_values={
'entity': entity or self.settings('entity'),
'model': project or self.settings('project'),
'command': command,
'runId': run_id,
'patch': patch.read().decode("utf8"),
'cwd': cwd
})
@normalize_exceptions
def run_config(self, project, run=None, entity=None):
"""Get the config for a run
Args:
project (str): The project to download, (can include bucket)
run (str, optional): The run to download
entity (str, optional): The entity to scope this project to.
"""
query = gql('''
query Model($name: String!, $entity: String!, $run: String!) {
model(name: $name, entityName: $entity) {
bucket(name: $run) {
config
commit
patch
}
}
}
''')
response = self.gql(query, variable_values={
'name': project, 'run': run, 'entity': entity
})
run = response['model']['bucket']
commit = run['commit']
patch = run['patch']
config = json.loads(run['config'] or '{}')
return (commit, config, patch)
@normalize_exceptions
def run_resume_status(self, entity, project, name):
"""Check if a run exists and get resume information.
Args:
project (str): The project to download, (can include bucket)
run (str, optional): The run to download
entity (str, optional): The entity to scope this project to.
"""
query = gql('''
query Model($project: String!, $entity: String!, $name: String!) {
model(name: $project, entityName: $entity) {
bucket(name: $name) {
id
name
logLineCount
historyLineCount
eventsLineCount
historyTail
eventsTail
}
}
}
''')
try:
response = self.gql(query, variable_values={
'entity': entity, 'project': project, 'name': name,
})
except Exception as e:
if '404' in str(e):
return None
raise
run = response['model']['bucket']
return run
def format_project(self, project):
return re.sub(r'\W+', '-', project.lower()).strip("-_")
@normalize_exceptions
def upsert_project(self, project, id=None, description=None, entity=None):
"""Create a new project
Args:
project (str): The project to create
description (str, optional): A description of this project
entity (str, optional): The entity to scope this project to.
"""
mutation = gql('''
mutation UpsertModel($name: String!, $id: String, $entity: String!, $description: String, $repo: String) {
upsertModel(input: { id: $id, name: $name, entityName: $entity, description: $description, repo: $repo }) {
model {
name
description
}
}
}
''')
response = self.gql(mutation, variable_values={
'name': self.format_project(project), 'entity': entity or self.settings('entity'),
'description': description, 'repo': self.git.remote_url, 'id': id})
return response['upsertModel']['model']
@normalize_exceptions
def upsert_run(self, id=None, name=None, project=None, host=None,
config=None, description=None, entity=None, state=None,
repo=None, job_type=None, program_path=None, commit=None,
sweep_name=None, summary_metrics=None):
"""Update a run
Args:
id (str, optional): The existing run to update
name (str, optional): The name of the run to create
project (str, optional): The name of the project
config (dict, optional): The latest config params
description (str, optional): A description of this project
entity (str, optional): The entity to scope this project to.
repo (str, optional): Url of the program's repository.
state (str, optional): State of the program.
job_type (str, optional): Type of job, e.g 'train'.
program_path (str, optional): Path to the program.
commit (str, optional): The Git SHA to associate the run with
summary_metrics (str, optional): The JSON summary metrics
"""
mutation = gql('''
mutation UpsertBucket(
$id: String, $name: String,
$project: String,
$entity: String!,
$description: String,
$commit: String,
$config: JSONString,
$host: String,
$debug: Boolean,
$program: String,
$repo: String,
$jobType: String,
$state: String,
$sweep: String,
$summaryMetrics: JSONString,
) {
upsertBucket(input: {
id: $id, name: $name,
modelName: $project,
entityName: $entity,
description: $description,
config: $config,
commit: $commit,
host: $host,
debug: $debug,
jobProgram: $program,
jobRepo: $repo,
jobType: $jobType,
state: $state,
sweep: $sweep,
summaryMetrics: $summaryMetrics,
}) {
bucket {
id
name
description
config
}
}
}
''')
if config is not None:
config = json.dumps(config)
if not description:
description = None
commit = commit or self.git.last_commit
response = self.gql(mutation, variable_values={
'id': id, 'entity': entity or self.settings('entity'), 'name': name, 'project': project,
'description': description, 'config': config, 'commit': commit,
'host': host, 'debug': os.getenv('DEBUG'), 'repo': repo, 'program': program_path, 'jobType': job_type,
'state': state, 'sweep': sweep_name, 'summaryMetrics': summary_metrics})
return response['upsertBucket']['bucket']
@normalize_exceptions
def upload_urls(self, project, files, run=None, entity=None, description=None):
"""Generate temporary resumeable upload urls
Args:
project (str): The project to download
files (list or dict): The filenames to upload
run (str, optional): The run to upload to
entity (str, optional): The entity to scope this project to. Defaults to wandb models
Returns:
(bucket_id, file_info)
bucket_id: id of bucket we uploaded to
file_info: A dict of filenames and urls, also indicates if this revision already has uploaded files.
{
'weights.h5': { "url": "https://weights.url" },
'model.json': { "url": "https://model.json", "updatedAt": '2013-04-26T22:22:23.832Z', 'md5': 'mZFLkyvTelC5g8XnyQrpOw==' },
}
"""
query = gql('''
query Model($name: String!, $files: [String]!, $entity: String!, $run: String!, $description: String) {
model(name: $name, entityName: $entity) {
bucket(name: $run, desc: $description) {
id
files(names: $files) {
edges {
node {
name
url(upload: true)
updatedAt
}
}
}
}
}
}
''')
query_result = self.gql(query, variable_values={
'name': project, 'run': run or self.settings('run'),
'entity': entity or self.settings('entity'),
'description': description,
'files': [file for file in files]
})
run = query_result['model']['bucket']
result = {file['name']
: file for file in self._flatten_edges(run['files'])}
return run['id'], result
@normalize_exceptions
def download_urls(self, project, run=None, entity=None):
"""Generate download urls
Args:
project (str): The project to download
run (str, optional): The run to upload to
entity (str, optional): The entity to scope this project to. Defaults to wandb models
Returns:
A dict of extensions and urls
{
'weights.h5': { "url": "https://weights.url", "updatedAt": '2013-04-26T22:22:23.832Z', 'md5': 'mZFLkyvTelC5g8XnyQrpOw==' },
'model.json': { "url": "https://model.url", "updatedAt": '2013-04-26T22:22:23.832Z', 'md5': 'mZFLkyvTelC5g8XnyQrpOw==' }
}
"""
query = gql('''
query Model($name: String!, $entity: String!, $run: String!) {
model(name: $name, entityName: $entity) {
bucket(name: $run) {
files {
edges {
node {
name
url
md5
updatedAt
}
}
}
}
}
}
''')
query_result = self.gql(query, variable_values={
'name': project, 'run': run or self.settings('run'),
'entity': entity or self.settings('entity')})
files = self._flatten_edges(query_result['model']['bucket']['files'])
return {file['name']: file for file in files}
@normalize_exceptions
def download_file(self, url):
"""Initiate a streaming download
Args:
url (str): The url to download
Returns:
A tuple of the content length and the streaming response
"""
response = requests.get(url, stream=True)
response.raise_for_status()
return (int(response.headers.get('content-length', 0)), response)
@normalize_exceptions
def download_write_file(self, metadata):
"""Download a file from a run and write it to wandb/
Args:
metadata (obj): The metadata object for the file to download. Comes from Api.download_urls().
Returns:
A tuple of the file's local path and the streaming response. The streaming response is None if the file already existed and was up to date.
"""
fileName = metadata['name']
path = os.path.join(wandb_dir(), fileName)
if self.file_current(fileName, metadata['md5']):
return path, None
size, response = self.download_file(metadata['url'])
with open(path, "wb") as file:
for data in response.iter_content():
file.write(data)
return path, response
@normalize_exceptions
def upload_file(self, url, file, callback=None):
"""Uploads a file to W&B with failure resumption
Args:
url (str): The url to download
file (str): The path to the file you want to upload
callback (:obj:`func`, optional): A callback which is passed the number of
bytes uploaded since the last time it was called, used to report progress
Returns:
The requests library response object
"""
attempts = 0
extra_headers = {}
if os.stat(file.name).st_size == 0:
raise CommError("%s is an empty file" % file.name)
while attempts < self.retries:
try:
progress = Progress(file, callback=callback)
response = requests.put(
url, data=progress, headers=extra_headers)
response.raise_for_status()
break
except requests.exceptions.RequestException as e:
total = progress.len
status = self._status_request(url, total)
if status.status_code == 308:
attempts += 1
completed = int(status.headers['Range'].split("-")[-1])
extra_headers = {
'Content-Range': 'bytes {completed}-{total}/{total}'.format(
completed=completed,
total=total
),
'Content-Length': str(total - completed)
}
else:
raise e
return response
@normalize_exceptions
def register_agent(self, host, persistent, sweep_id=None, project_name=None):
"""Register a new agent
Args:
host (str): hostname
persistent (bool): long running or oneoff
sweep (str): sweep id
project_name: (str): model that contains sweep
"""
mutation = gql('''
mutation CreateAgent(
$host: String!
$modelName: String!,
$entityName: String,
$persistent: Boolean,
$sweep: String
) {
createAgent(input: {
host: $host,
modelName: $modelName,
entityName: $entityName,
persistent: $persistent,
sweep: $sweep,
}) {
agent {
id
}
}
}
''')
if project_name is None:
project_name = self.settings('project')
response = self.gql(mutation, variable_values={
'host': host,
'entityName': self.settings("entity"),
'modelName': project_name,
'persistent': persistent,
'sweep': sweep_id})
return response['createAgent']['agent']
def agent_heartbeat(self, agent_id, metrics, run_states):
"""Notify server about agent state, receive commands.
Args:
agent_id (str): agent_id
metrics (dict): system metrics
run_states (dict): run_id: state mapping
Returns:
List of commands to execute.
"""
mutation = gql('''
mutation Heartbeat(
$id: String!,
$metrics: JSONString,
$runState: JSONString
) {
heartbeat(input: {
id: $id,
metrics: $metrics,
runState: $runState,
serverRunGen: true
}) {
agent {
id
}
commands
}
}
''')
try:
response = self.gql(mutation, variable_values={
'id': agent_id,
'metrics': json.dumps(metrics),
'runState': json.dumps(run_states)})
except Exception as e:
# GQL raises exceptions with stringified python dictionaries :/
message = ast.literal_eval(e.args[0])["message"]
logger.error('Error communicating with W&B: %s', message)
return []
else:
return json.loads(response['heartbeat']['commands'])
@normalize_exceptions
def upsert_sweep(self, config):
"""Upsert a sweep object.
Args:
config (str): sweep config (will be converted to yaml)
"""
mutation = gql('''
mutation UpsertSweep(
$config: String,
$description: String,
$entityName: String,
$modelName: String!
) {
upsertSweep(input: {
config: $config,
description: $description,
entityName: $entityName,
modelName: $modelName
}) {
sweep {
name
}
}
}
''')
response = self.gql(mutation, variable_values={
'config': yaml.dump(config),
'description': config.get("description"),
'entityName': self.settings("entity"),
'modelName': self.settings("project")})
return response['upsertSweep']['sweep']['name']
def file_current(self, fname, md5):
"""Checksum a file and compare the md5 with the known md5
"""
return os.path.isfile(fname) and util.md5_file(fname) == md5
@normalize_exceptions
def pull(self, project, run=None, entity=None):
"""Download files from W&B
Args:
project (str): The project to download
run (str, optional): The run to upload to
entity (str, optional): The entity to scope this project to. Defaults to wandb models
Returns:
The requests library response object
"""
project, run = self.parse_slug(project, run=run)
urls = self.download_urls(project, run, entity)
responses = []
for fileName in urls:
_, response = self.download_write_file(urls[fileName])
if response:
responses.append(response)
return responses
@normalize_exceptions
def push(self, project, files, run=None, entity=None, description=None, force=True, progress=False):
"""Uploads multiple files to W&B
Args:
project (str): The project to upload to
files (list or dict): The filenames to upload
run (str, optional): The run to upload to
entity (str, optional): The entity to scope this project to. Defaults to wandb models
description (str, optional): The description of the changes
force (bool, optional): Whether to prevent push if git has uncommitted changes
progress (callable, or stream): If callable, will be called with (chunk_bytes,
total_bytes) as argument else if True, renders a progress bar to stream.
Returns:
The requests library response object
"""
project, run = self.parse_slug(project, run=run)
# Only tag if enabled
if self.settings("git_tag"):
self.tag_and_push(run, description, force)
run_id, result = self.upload_urls(
project, files, run, entity, description)
responses = []
for file_name, file_info in result.items():
try:
open_file = files[file_name] if isinstance(
files, dict) else open(file_name, "rb")
except IOError:
print("%s does not exist" % file_name)
continue
if progress:
if hasattr(progress, '__call__'):
responses.append(self.upload_file(
file_info['url'], open_file, progress))
else:
length = os.fstat(open_file.fileno()).st_size
with click.progressbar(file=progress, length=length, label='Uploading file: %s' % (file_name),
fill_char=click.style('&', fg='green')) as bar:
responses.append(self.upload_file(
file_info['url'], open_file, lambda bites, _: bar.update(bites)))
else:
responses.append(self.upload_file(file_info['url'], open_file))
open_file.close()
return responses
def get_file_stream_api(self):
if not self._file_stream_api:
settings = self.settings()
if self._current_run_id is None:
raise UsageError(
'Must have a current run to use file stream API.')
self._file_stream_api = FileStreamApi(
self.api_key, self.user_agent, settings['base_url'],
settings['entity'], settings['project'], self._current_run_id)
return self._file_stream_api
def tag_and_push(self, name, description, force=True):
if self.git.enabled and not self.tagged:
self.tagged = True
# TODO: this is getting called twice...
print("Tagging your git repo...")
if not force and self.git.dirty:
raise CommError(
"You have un-committed changes. Use the force flag or commit your changes.")
elif self.git.dirty and os.path.exists(wandb_dir()):
self.git.repo.git.execute(['git', 'diff'], output_stream=open(
os.path.join(wandb_dir(), 'diff.patch'), 'wb'))
self.git.tag(name, description)
result = self.git.push(name)
if(result is None or len(result) is None):
print("Unable to push git tag.")
def _status_request(self, url, length):
"""Ask google how much we've uploaded"""
return requests.put(
url=url,
headers={'Content-Length': '0',
'Content-Range': 'bytes */%i' % length}
)
def _flatten_edges(self, response):
"""Return an array from the nested graphql relay structure"""
return [node['node'] for node in response['edges']]
