def venv_fixture(pickle_file):
"""Loads required virtualenv pkg data from a pickle file
:param pickle_file: path to a .pickle file
:returns: a tuple of pkgs, pkg_index, req_map
:rtype: tuple
"""
with open(pickle_file, 'rb') as f:
pkgs = pickle.load(f)
dist_index = build_dist_index(pkgs)
tree = construct_tree(dist_index)
return pkgs, dist_index, tree
def venv_fixture(pickle_file):
"""Loads required virtualenv pkg data from a pickle file
:param pickle_file: path to a .pickle file
:returns: a tuple of pkgs, pkg_index, req_map
:rtype: tuple
"""
with open(pickle_file, 'rb') as f:
pkgs = pickle.load(f)
dist_index = build_dist_index(pkgs)
tree = construct_tree(dist_index)
return pkgs, dist_index, tree
def build_dep_list(package_name, local_only=True):
"""Builds a dependency list for the given package, assuming the given package has already been
installed. The dependency list is provided in the order in which it needs to be installed.
Args:
package_name: The name of the package for which to build a dependency tree.
local_only: Look in local distribution? Default: True.
Returns:
A Python list containing information about the dependencies for that package.
"""
## Dealing with pip 10.* api chagnes
## The solution is from:
## https://github.com/naiquevin/pipdeptree/blob/master/pipdeptree.py
try:
from pip._internal.utils.misc import get_installed_distributions
except ImportError:
from pip import get_installed_distributions
packages = get_installed_distributions(local_only=local_only)
dist_index = build_dist_index(packages)
tree = sorted_tree(construct_tree(dist_index))
nodes = tree.keys()
# filter by our desired package only
nodes = [p for p in nodes if p.key == package_name or p.project_name == package_name]
if len(nodes) == 0:
raise PackageNotFoundError(package_name)
if len(nodes) > 1:
raise MultiplePackagesFoundError(package_name)
key_tree = dict((k.key, v) for k, v in iteritems(tree))
deps = recursive_extract_dep_list(key_tree, package_name)
unique_deps = []
seen_deps = set()
for dep in deps:
if dep.key not in seen_deps:
unique_deps.append(dep.as_dict())
seen_deps.add(dep.key)
else:
logger.debug("Duplicate dependency found: %s" % dep.project_name)
return unique_deps
def get_virtual_dependencies_of_packages():
"""
Return information about installed dependencies in the virtualenv of application
example of json result :
{"dependencies": [{"required_version": null,
"installed_version": "1.8.13", "package_name": "Django", "key": "django"}],
"package_name": "django-ckeditor"}
"""
packages = pkg_resources.working_set
dist_index = pipdeptree.build_dist_index(packages)
tree = pipdeptree.construct_tree(dist_index)
packages_dict = {}
locations = []
for p in packages:
packages_dict[p.key] = p
locations.append(p.location)
most_common = Counter(locations).most_common(1)[0][0]
print("most common loc")
print(most_common)
ret = [{
'package_name': k.as_dict()['key'],
'dependencies': [v.as_dict() for v in vs]
} for k, vs in tree.items()]
for r in ret:
r["package"] = packages_dict[r["package_name"]]
r["dependency_for"] = []
if r["package"].location == most_common:
r["default_location"] = True
for rr in ret:
if r['package'].key in [d['key'] for d in rr["dependencies"]]:
r["dependency_for"].append(rr["package_name"])
sortedret = sorted(ret,
key=(lambda x:
(len(x["dependencies"]), x["package_name"])))
return most_common, sortedret
def get_package_tree(ignore_list=None, include_only=None):
"""Returns dependency package tree
:param ignore_list: list of dependencies to exclude from tree
:param include_only: list of dependencies to include if
:return: dictionary of top level packages with their dependencies
"""
ignore_list = [i.lower() for i in ignore_list] if ignore_list else []
include_only = [i.lower() for i in include_only] if include_only else []
packages = [
package for package in pip.get_installed_distributions()
if package.key not in ignore_list
]
# if include_only is set, remove other packages
if include_only:
packages = [
package for package in packages if package.key in include_only
]
dist_index = pipdeptree.build_dist_index(pkgs=packages)
tree = pipdeptree.construct_tree(index=dist_index)
return tree
def read_installed(verbose=True):
cwd = os.getcwd()
if verbose:
try:
# virtual environment with venv in python 3.3+
from site import getsitepackages
site_package_dirs = getsitepackages()
except ImportError:
# virtual environment with virtualenv
# https://github.com/pypa/virtualenv/issues/228
from distutils.sysconfig import get_python_lib
site_package_dirs = [get_python_lib()]
print('reading installed from:\n\t{}'.format('\n\t'.join(
[os.path.relpath(x, cwd) for x in site_package_dirs])))
pkgs = get_installed_distributions()
dist_index = build_dist_index(pkgs)
tree = construct_tree(dist_index)
branch_keys = set(r.key for r in flatten(tree.values()))
nodes = [p for p in tree.keys() if p.key not in branch_keys]
project_names = set(normalize_package_name(p.project_name) for p in nodes)
editable_packages = set(
normalize_package_name(p.project_name) for p in nodes
if dist_is_editable(p._obj))
return set(project_names), editable_packages, tree
import pipdeptree
import json
pkgs = pipdeptree.get_installed_distributions()
dist_index = pipdeptree.build_dist_index(pkgs)
tree = pipdeptree.construct_tree(dist_index)
json_tree = json.loads(pipdeptree.render_json_tree(tree, indent=0))
print(json_tree)
print([
package for package in json_tree if package['package_name'] == 'tornado'
][0])