def test_install():
def check(*path):
return os.path.exists(os.path.join(*path))
def get_supported():
return list(
wheel.pep425tags.get_supported()) + [('py3', 'none', 'win32')]
tempdir = mkdtemp()
whl = WheelFile(TESTWHEEL, context=get_supported)
assert whl.supports_current_python(get_supported)
try:
locs = {}
for key in ('purelib', 'platlib', 'scripts', 'headers', 'data'):
locs[key] = os.path.join(tempdir, key)
os.mkdir(locs[key])
whl.install(overrides=locs)
assert len(os.listdir(locs['purelib'])) == 0
assert check(locs['platlib'], 'hello.pyd')
assert check(locs['platlib'], 'hello', 'hello.py')
assert check(locs['platlib'], 'hello', '__init__.py')
assert check(locs['data'], 'hello.dat')
assert check(locs['headers'], 'hello.dat')
assert check(locs['scripts'], 'hello.sh')
assert check(locs['platlib'], 'test-1.0.dist-info', 'RECORD')
finally:
shutil.rmtree(tempdir)
def test_can_extract_package(self):
wheelhouse = os.path.join(self.tmpdir, 'extract_package')
expected_install_at = os.path.join(wheelhouse, 'listeneragent-0.1')
test_wheel_name = 'listeneragent-0.1-py2-none-any.whl'
wheel_file = os.path.join(self.fixtureDir, test_wheel_name)
installed_at = extract_package(wheel_file, wheelhouse)
try:
self.assertIsNotNone(installed_at)
self.assertTrue(os.path.isdir(installed_at))
self.assertEqual(expected_install_at, installed_at)
# use the wheel file to verify that everything was extracted
# properly.
wf = WheelFile(wheel_file)
self.assertIsNone(wf.verify())
for o in wf.zipfile.infolist():
self.assertTrue(
os.path.exists(
os.path.join(expected_install_at, o.filename)))
wf.zipfile.close()
finally:
shutil.rmtree(installed_at)
shutil.rmtree(wheelhouse)
def _add_dist_zip(self, path, dist_name):
# We need to distinguish between wheels and other zips. Most of the time,
# when we have a zip, it contains its contents in an importable form.
# But wheels don't have to be importable, so we need to force them
# into an importable shape. We can do that by installing it into its own
# wheel dir.
if dist_name.endswith("whl"):
from wheel.install import WheelFile
tmp = safe_mkdtemp()
whltmp = os.path.join(tmp, dist_name)
os.mkdir(whltmp)
wf = WheelFile(path)
wf.install(overrides=self._get_installer_paths(whltmp), force=True)
for (root, _, files) in os.walk(whltmp):
pruned_dir = os.path.relpath(root, tmp)
for f in files:
fullpath = os.path.join(root, f)
if os.path.isdir(fullpath):
continue
target = os.path.join(self._pex_info.internal_cache, pruned_dir, f)
self._chroot.copy(fullpath, target)
return CacheHelper.dir_hash(whltmp)
with open_zip(path) as zf:
for name in zf.namelist():
if name.endswith('/'):
continue
target = os.path.join(self._pex_info.internal_cache, dist_name, name)
self._chroot.write(zf.read(name), target)
return CacheHelper.zip_hash(zf)
def _ensure_setup_requires_site_dir(self, dist_targets, interpreter, site_dir):
reqs_to_resolve = set()
for tgt in dist_targets:
for setup_req_lib_addr in tgt.setup_requires:
for req_lib in self.context.build_graph.resolve(setup_req_lib_addr):
for req in req_lib.requirements:
reqs_to_resolve.add(req)
if not reqs_to_resolve:
return None
self.context.log.debug('python_dist target(s) with setup_requires detected. '
'Installing setup requirements: {}\n\n'
.format([req.key for req in reqs_to_resolve]))
setup_requires_dists = _resolve_multi(interpreter, reqs_to_resolve, ['current'], None)
overrides = {
'purelib': site_dir,
'headers': os.path.join(site_dir, 'headers'),
'scripts': os.path.join(site_dir, 'bin'),
'platlib': site_dir,
'data': site_dir
}
# The `python_dist` target builds for the current platform only.
for obj in setup_requires_dists['current']:
wf = WheelFile(obj.location)
wf.install(overrides=overrides, force=True)
return site_dir
def ensure_setup_requires_site_dir(reqs_to_resolve,
interpreter,
site_dir,
platforms=None):
if not reqs_to_resolve:
return None
setup_requires_dists = resolve_multi(interpreter, reqs_to_resolve,
platforms, None)
# FIXME: there's no description of what this does or why it's necessary.
overrides = {
'purelib': site_dir,
'headers': os.path.join(site_dir, 'headers'),
'scripts': os.path.join(site_dir, 'bin'),
'platlib': site_dir,
'data': site_dir
}
# The `python_dist` target builds for the current platform only.
# FIXME: why does it build for the current platform only?
for obj in setup_requires_dists['current']:
wf = WheelFile(obj.location)
wf.install(overrides=overrides, force=True)
return SetupRequiresSiteDir(site_dir)
def _add_dist_zip(self, path, dist_name):
# We need to distinguish between wheels and other zips. Most of the time,
# when we have a zip, it contains its contents in an importable form.
# But wheels don't have to be importable, so we need to force them
# into an importable shape. We can do that by installing it into its own
# wheel dir.
if dist_name.endswith("whl"):
from wheel.install import WheelFile
tmp = safe_mkdtemp()
whltmp = os.path.join(tmp, dist_name)
os.mkdir(whltmp)
wf = WheelFile(path)
wf.install(overrides=self._get_installer_paths(whltmp), force=True)
for (root, _, files) in os.walk(whltmp):
pruned_dir = os.path.relpath(root, tmp)
for f in files:
fullpath = os.path.join(root, f)
if os.path.isdir(fullpath):
continue
target = os.path.join(self._pex_info.internal_cache, pruned_dir, f)
self._chroot.copy(fullpath, target)
return CacheHelper.dir_hash(whltmp)
with open_zip(path) as zf:
for name in zf.namelist():
if name.endswith('/'):
continue
target = os.path.join(self._pex_info.internal_cache, dist_name, name)
self._chroot.write(zf.read(name), target)
return CacheHelper.zip_hash(zf)
def test_can_extract_package(self):
wheelhouse = os.path.join(self.tmpdir, 'extract_package')
expected_install_at = os.path.join(wheelhouse, 'listeneragent-0.1')
test_wheel_name = 'listeneragent-0.1-py2-none-any.whl'
wheel_file = os.path.join(self.fixtureDir, test_wheel_name)
installed_at = extract_package(wheel_file, wheelhouse)
try:
self.assertIsNotNone(installed_at)
self.assertTrue(os.path.isdir(installed_at))
self.assertEqual(expected_install_at, installed_at)
# use the wheel file to verify that everything was extracted
# properly.
wf = WheelFile(wheel_file)
self.assertIsNone(wf.verify())
for o in wf.zipfile.infolist():
self.assertTrue(
os.path.exists(os.path.join(expected_install_at, o.filename)))
wf.zipfile.close()
finally:
shutil.rmtree(installed_at)
shutil.rmtree(wheelhouse)
def test_can_create_package(self):
'''
Tests that a proper wheel package is created from the create_package method of
the AgentPackage class.
'''
agent_name = AGENT_TESTCASE1_NAME
package_tmp_dir = os.path.join(self.tmpdir, 'create_package')
expected_package_name = 'listeneragent-0.1-py2-none-any.whl'
returned_package = create_package(
self.get_agent_fixture(agent_name), package_tmp_dir)
self.assertIsNotNone(
returned_package, "Invalid package name {}".format(returned_package))
self.assertTrue(os.path.exists(returned_package))
self.assertEqual(
expected_package_name, os.path.basename(returned_package))
# Wheel is in the correct location.
self.assertEqual(
os.path.join(package_tmp_dir, expected_package_name), returned_package)
self.assertTrue(os.path.exists(returned_package))
try:
wf = WheelFile(returned_package)
# sets up the expected hashes for all of the wheel directory.
self.assertIsNone(wf.verify())
# Reading the files
# if the hash doesn't match it will throw an exception.
for o in wf.zipfile.infolist():
wf.zipfile.open(o).read()
wf.zipfile.close()
finally:
shutil.rmtree(package_tmp_dir)
def test_can_create_package(self):
'''
Tests that a proper wheel package is created from the create_package method of
the AgentPackage class.
'''
agent_name = AGENT_TESTCASE1_NAME
package_tmp_dir = os.path.join(self.tmpdir, 'create_package')
expected_package_name = 'listeneragent-0.1-py2-none-any.whl'
returned_package = create_package(
self.get_agent_fixture(agent_name), package_tmp_dir)
self.assertIsNotNone(
returned_package, "Invalid package name {}".format(returned_package))
self.assertTrue(os.path.exists(returned_package))
self.assertEqual(
expected_package_name, os.path.basename(returned_package))
# Wheel is in the correct location.
self.assertEqual(
os.path.join(package_tmp_dir, expected_package_name), returned_package)
self.assertTrue(os.path.exists(returned_package))
try:
wf = WheelFile(returned_package)
# sets up the expected hashes for all of the wheel directory.
self.assertIsNone(wf.verify())
# Reading the files
# if the hash doesn't match it will throw an exception.
for o in wf.zipfile.infolist():
wf.zipfile.open(o).read()
wf.zipfile.close()
finally:
shutil.rmtree(package_tmp_dir)
def package_exists(path):
parsed_filename = WheelFile(path).parsed_filename
package = parsed_filename.group('name')
version = parsed_filename.group('ver')
p = check_output('devpi list {}=={}'.format(package, version).split())
exists = True if p else False
if exists:
print('Package {}={} already exists.'.format(package, version))
return exists
def test_compatibility_tags():
"""Test compatibilty tags are working."""
wf = WheelFile("package-1.0.0-cp32.cp33-noabi-noarch.whl")
assert (list(wf.compatibility_tags) == [('cp32', 'noabi', 'noarch'),
('cp33', 'noabi', 'noarch')])
assert (wf.arity == 2)
wf2 = WheelFile("package-1.0.0-1st-cp33-noabi-noarch.whl")
wf2_info = wf2.parsed_filename.groupdict()
assert wf2_info['build'] == '1st', wf2_info
def package_exists(path):
parsed_filename = WheelFile(path).parsed_filename
package, version = parsed_filename.group(2), parsed_filename.group(4)
try:
p = check_output('devpi list {}=={}'.format(package,
version).split())
exists = True if p else False
except CalledProcessError as e:
if '404 Not Found: no project' in e.stdout.decode('utf-8'):
exists = False
else:
raise
if exists:
print('Package {}={} already exists.'.format(package, version))
return exists
def _split_filename(filename):
""" Split a .whl or .tar.gz distribution file name
into a (package_name, version) tuple
>>> _split_filename('abc-1.1.tar.gz')
('abc', <Version('1.1')>)
>>> _split_filename('dir/abc-1.1.tar.gz')
('abc', <Version('1.1')>)
>>> _split_filename('a_bc-1.1.tar.gz')
('a-bc', <Version('1.1')>)
>>> _split_filename('a_b-c-1.1.tar.gz')
('a-b-c', <Version('1.1')>)
>>> _split_filename('mis_builder-3.1.1.99.dev17-py2-none-any.whl')
('mis-builder', <Version('3.1.1.99.dev17')>)
>>> _split_filename('a/b/mis_builder-3.1.1.99.dev17-py2-none-any.whl')
('mis-builder', <Version('3.1.1.99.dev17')>)
"""
basename = os.path.basename(filename)
if basename.endswith('.whl'):
wheelfile = WheelFile(basename)
package_name = wheelfile.parsed_filename.group('name')
package_ver = wheelfile.parsed_filename.group('ver')
elif basename.endswith('.tar.gz'):
package_ver = basename.split('-')[-1][:-7]
package_name = basename[:-(len(package_ver) + 8)]
else:
raise RuntimeError("Unrecognized file type %s" % (filename, ))
package_name = package_name.replace('_', '-')
package_ver = parse_version(package_ver)
return package_name, package_ver
def _split_wheelfilename(wheelfilename):
wheelfile = WheelFile(wheelfilename)
package_name = wheelfile.parsed_filename.group('name')
package_name = package_name.replace('_', '-')
package_ver = wheelfile.parsed_filename.group('ver')
package_ver = parse_version(package_ver)
return package_name, package_ver
def test_pick_best():
"""Test the wheel ranking algorithm."""
def get_tags(res):
info = res[-1].parsed_filename.groupdict()
return info['pyver'], info['abi'], info['plat']
cand_tags = [('py27', 'noabi', 'noarch'), ('py26', 'noabi', 'noarch'),
('cp27', 'noabi', 'linux_i686'),
('cp26', 'noabi', 'linux_i686'),
('cp27', 'noabi', 'linux_x86_64'),
('cp26', 'noabi', 'linux_x86_64')]
cand_wheels = [
WheelFile('testpkg-1.0-%s-%s-%s.whl' % t) for t in cand_tags
]
supported = [('cp27', 'noabi', 'linux_i686'), ('py27', 'noabi', 'noarch')]
supported2 = [('cp27', 'noabi', 'linux_i686'), ('py27', 'noabi', 'noarch'),
('cp26', 'noabi', 'linux_i686'), ('py26', 'noabi', 'noarch')]
supported3 = [('cp26', 'noabi', 'linux_i686'), ('py26', 'noabi', 'noarch'),
('cp27', 'noabi', 'linux_i686'), ('py27', 'noabi', 'noarch')]
for supp in (supported, supported2, supported3):
context = lambda: list(supp)
for wheel in cand_wheels:
wheel.context = context
best = max(cand_wheels)
assert list(best.tags)[0] == supp[0]
def install_wheel(wheel, root_dir):
importable_path = os.path.join(root_dir, 'install',
os.path.basename(wheel))
overrides = {
path: importable_path
for path in ('purelib', 'platlib', 'headers', 'scripts', 'data')
}
WheelFile(wheel).install(force=True, overrides=overrides)
return importable_path
def is_compatible(package):
"""
Check whether the given python package is a wheel compatible with the
current platform and python interpreter.
"""
try:
return WheelFile(package).compatible
except BadWheelFile:
return False
def make_wheel(name, ver, pyver, abi, arch):
name = WHEELPAT % {
'name': name,
'ver': ver,
'pyver': pyver,
'abi': abi,
'arch': arch
}
return WheelFile(name)
def rebuild_html():
all_wheels = (WheelFile(name) for name in glob("simple/dist/*.whl"))
packages = groupby(all_wheels,
lambda w: w.parsed_filename.groupdict()['name'])
package_names = []
for package_name, wheels in packages:
package_names.append(package_name)
write_package_html(package_name, wheels)
write_index_html(package_names)
def _install_wheel(cls, wheel_path, install_dir):
safe_mkdir(install_dir, clean=True)
WheelFile(wheel_path).install(force=True,
overrides={
'purelib': install_dir,
'headers': os.path.join(install_dir, 'headers'),
'scripts': os.path.join(install_dir, 'bin'),
'platlib': install_dir,
'data': install_dir
})
def get_winfo(info_fname, drop_version=True):
""" Get wheel info from WHEEL file
Drop "Wheel-Version" by default in case this changes in the future
"""
wf = WheelFile(info_fname)
info = sorted(wf.parsed_wheel_info.items())
if drop_version:
info = [(name, value) for (name, value) in info
if name != "Wheel-Version"]
return info
def is_pure(wheel):
"""
Check whether wheel given by the passed path is pure.
Pure wheels operate independent of the specific Python version and platform.
:param wheel: The path to the wheel to inspect
:return: True if the wheel is pure
"""
return WheelFile(
wheel).parsed_wheel_info['Root-Is-Purelib'] == 'true' # safe default
def parse_wheel_filename(filename):
try:
wf = WheelFile(filename)
except BadWheelFile:
raise ValueError("Wheel filename {} is not valid".format(filename))
return (
wf.parsed_filename.group('name'),
wf.parsed_filename.group('ver'),
wf.parsed_filename.group('pyver'),
wf.parsed_filename.group('plat')
)
def main():
build_tag = sys.argv[1]
for wheel_fname in sys.argv[2:]:
path, fname = psplit(wheel_fname)
wf = WheelFile(fname)
parsed = wf.parsed_filename.groupdict()
parsed['build'] = build_tag
out_fname = '{name}-{ver}-{build}-{pyver}-{abi}-{plat}.whl'.format(
**parsed)
out_path = pjoin(path, out_fname)
print('Copying {} to {}'.format(wheel_fname, out_path))
copyfile(wheel_fname, out_path)
def _metadata(path):
from wheel.install import WheelFile
try:
wf = WheelFile(path)
except Exception as e:
print("%s: %s" % (path, str(e)))
metadata_file = "%s/metadata.json" % wf.distinfo_name
with wf.zipfile.open(metadata_file) as mdf:
import json
md = json.loads(mdf.read().decode(encoding="UTF-8"))
md["modified"] = _modtime(path)
return md
def install_module(mod_name, mod_vals, debug=False):
"""Checks for dependencies, then installs module"""
already_installed = check_install(mod_vals["ImportedName"],
mod_vals["Version"])
if not already_installed:
for dep in mod_vals["Dependencies"]:
if not check_install(dep):
if debug:
print(
"Did not install module; did not have all dependencies. Hopefully, this module will be placed on the waitlist"
)
return False
print("Installing module %s version %s" %
(mod_name, mod_vals["Version"]))
print("Downloading module")
install_req = requests.get(mod_vals["DownloadLink"])
install_filename = os.path.join("/tmp", mod_vals["Filename"])
install_content = install_req.content
with open(install_filename, "wb") as mod_file:
mod_file.write(install_content)
print("Installing module")
wheelfile = WheelFile(install_filename)
try:
wheelfile.install(force=True)
except ValueError as e:
print(e)
installed = check_install(mod_vals["ImportedName"],
mod_vals["Version"])
os.remove(install_filename)
if installed:
print("Successfully installed")
else:
print("Failed to install")
return installed
else:
if debug:
print(
"Not installing module. It is %s that this module was already installed"
% already_installed)
return already_installed
def test_install():
tempdir = mkdtemp()
def get_supported():
return list(wheel.pep425tags.get_supported()) + [('py3', 'none', 'win32')]
whl = WheelFile(TESTWHEEL, context=get_supported)
assert whl.supports_current_python(get_supported)
try:
locs = {}
for key in ('purelib', 'platlib', 'scripts', 'headers', 'data'):
locs[key] = os.path.join(tempdir, key)
os.mkdir(locs[key])
whl.install(overrides=locs)
assert len(os.listdir(locs['purelib'])) == 0
assert check(locs['platlib'], 'hello.pyd')
assert check(locs['platlib'], 'hello', 'hello.py')
assert check(locs['platlib'], 'hello', '__init__.py')
assert check(locs['data'], 'hello.dat')
assert check(locs['headers'], 'hello.dat')
assert check(locs['scripts'], 'hello.sh')
assert check(locs['platlib'], 'test-1.0.dist-info', 'RECORD')
finally:
shutil.rmtree(tempdir)
def ensure_setup_requires_site_dir(reqs_to_resolve, interpreter, site_dir,
platforms=None):
if not reqs_to_resolve:
return None
setup_requires_dists = resolve_multi(interpreter, reqs_to_resolve, platforms, None)
# FIXME: there's no description of what this does or why it's necessary.
overrides = {
'purelib': site_dir,
'headers': os.path.join(site_dir, 'headers'),
'scripts': os.path.join(site_dir, 'bin'),
'platlib': site_dir,
'data': site_dir
}
# The `python_dist` target builds for the current platform only.
# FIXME: why does it build for the current platform only?
for obj in setup_requires_dists['current']:
wf = WheelFile(obj.location)
wf.install(overrides=overrides, force=True)
return SetupRequiresSiteDir(site_dir)
def assert_winfo_similar(whl_fname, exp_items, drop_version=True):
wf = WheelFile(whl_fname)
wheel_parts = wf.parsed_filename.groupdict()
# Info can contain duplicate keys (e.g. Tag)
w_info = sorted(get_info(wf).items())
if drop_version:
w_info = _filter_key(w_info, "Wheel-Version")
exp_items = _filter_key(exp_items, "Wheel-Version")
assert_equal(len(exp_items), len(w_info))
# Extract some information from actual values
wheel_parts["pip_version"] = dict(w_info)["Generator"].split()[1]
for (key1, value1), (key2, value2) in zip(exp_items, w_info):
assert_equal(key1, key2)
value1 = value1.format(**wheel_parts)
assert_equal(value1, value2)
def extract_package(wheel_file,
install_dir,
include_uuid=False,
specific_uuid=None):
"""
Extract a wheel file to the specified location.
If include_uuid is True then a uuid will be generated under the
passed location directory.
The agent final directory will be based upon the wheel's data
directory name in the following formats:
.. code-block:: python
if include_uuid == True
install_dir/uuid/datadir_name
else
install_dir/datadir_name
:param wheel_file: The wheel file to extract.
:param install_dir: The root directory where to extract the wheel
:param include_uuid: Auto-generates a uuuid under install_dir to place the
wheel file data
:param specific_uuid: A specific uuid to use for extracting the agent.
:return: The folder where the wheel was extracted.
"""
real_dir = install_dir
# Only include the uuid if the caller wants it.
if include_uuid:
if specific_uuid == None:
real_dir = os.path.join(real_dir, str(uuid.uuid4()))
else:
real_dir = os.path.join(real_dir, specific_uuid)
if not os.path.isdir(real_dir):
os.makedirs(real_dir)
wf = WheelFile(wheel_file)
namever = wf.parsed_filename.group('namever')
destination = os.path.join(real_dir, namever)
sys.stderr.write("Unpacking to: %s\n" % (destination))
wf.zipfile.extractall(destination)
wf.zipfile.close()
return destination
def _find_wheel(self, name, version):
"""
Find a wheel with the given name and version
"""
candidates = [
WheelFile(filename)
for filename in glob.iglob(path.join(self.wheelhouse, '*.whl'))
]
matches = matches_requirement('{}=={}'.format(name, version),
candidates)
if len(matches) > 0:
return str(matches[0])
else:
raise BuildError(
name, version,
'Failed to find the build wheel for {} {}'.format(
name, version))
def _activate_wheel(wheel_path):
install_dir = '{}-install'.format(wheel_path)
safe_mkdir(install_dir, clean=True)
WheelFile(wheel_path).install(force=True,
overrides={
'purelib':
install_dir,
'headers':
os.path.join(install_dir, 'headers'),
'scripts':
os.path.join(install_dir, 'bin'),
'platlib':
install_dir,
'data':
install_dir
})
# Activate any .pth files installed above.
site.addsitedir(install_dir)
return install_dir
def download_package(client, name, version):
urls = client.release_urls(name, version)
dists = defaultdict(list)
for data in urls:
dists[data.get('packagetype')].append(data)
url = fname = None
for sdist in dists['sdist']:
url = sdist['url']
fname = sdist['filename']
break
else:
for bdist in dists['bdist_wheel']:
if WheelFile(bdist['filename']).compatible:
url = bdist['url']
fname = bdist['filename']
break
if fname is not None:
with _urlretrieve_lock:
urlretrieve(url, fname)
return fname
def verify_wheel(wheelfile):
wf = WheelFile(wheelfile)
sig_name = wf.distinfo_name + '/RECORD.jws'
try:
sig = json.loads(native(wf.zipfile.open(sig_name).read()))
except KeyError:
raise WheelValidationFailed("This wheel is not signed")
verified = signatures.verify(sig)
try:
vk = verified[0][0]['jwk']['vk']
except (KeyError, IndexError, ValueError):
raise WheelValidationFailed("Invalid signature")
if vk != settings.WHEEL_USER:
raise WheelValidationFailed("Wheel validation failed")
kr = keyring.get_keyring()
password = kr.get_password("wheel", settings.WHEEL_USER)
if password != settings.WHEEL_PASSWORD:
raise WheelValidationFailed("Wheel validation failed")
def __init__(self, req_string, parent=None, index_url=None, env=None):
self.dist_path = None
if req_string.endswith(".whl") and os.path.isfile(req_string):
self.dist_path = req_string
req_string = os.path.basename(req_string)
whl = WheelFile(req_string)
whl_name_info = whl.parsed_filename.groupdict()
self.name = canonicalize_name(whl_name_info["name"])
self.specifier = "==" + canonicalize_version(whl_name_info["ver"])
self.req = pkg_resources.Requirement.parse(self.name + self.specifier)
else:
self.req = pkg_resources.Requirement.parse(req_string)
self.name = canonicalize_name(self.req.name)
self.specifier = str(self.req.specifier)
self.extras_requested = sorted(self.req.extras)
log = self.log = logger.bind(dist=str(self.req))
log.info("init johnnydist", parent=parent and str(parent.req))
if parent is not None:
self.index_url = parent.index_url
self.required_by = [str(parent.req)]
self.env = parent.env
self.env_data = parent.env_data
else:
self.index_url = index_url
self.required_by = []
self.env = env
if self.env is None:
self.env_data = default_environment()
else:
self.env_data = dict(self.env)
log.debug("target env", **self.env_data)
if self.dist_path is None:
log.debug("fetching best wheel")
with wimpy.working_directory(self.tmp()):
data = pipper.get(req_string, index_url=self.index_url, env=self.env)
self.dist_path = data["path"]
self.parent = parent
self._recursed = False
