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Diffstat (limited to 'pythondistdeps.py')
| -rw-r--r-- | pythondistdeps.py | 626 |
1 files changed, 626 insertions, 0 deletions
diff --git a/pythondistdeps.py b/pythondistdeps.py new file mode 100644 index 0000000..b43ed39 --- /dev/null +++ b/pythondistdeps.py @@ -0,0 +1,626 @@ +#!/usr/bin/python3 -s +# -*- coding: utf-8 -*- +# +# Copyright 2010 Per Øyvind Karlsen <proyvind@moondrake.org> +# Copyright 2015 Neal Gompa <ngompa13@gmail.com> +# Copyright 2020 SUSE LLC +# +# This program is free software. It may be redistributed and/or modified under +# the terms of the LGPL version 2.1 (or later). +# +# RPM python dependency generator, using .egg-info/.egg-link/.dist-info data +# + +from __future__ import print_function +import argparse +from os.path import dirname, sep +import re +from sys import argv, stdin, stderr, version_info +from sysconfig import get_path +from warnings import warn + +from packaging.requirements import Requirement as Requirement_ +from packaging.version import parse +import packaging.markers + +# Monkey patching packaging.markers to handle extras names in a +# case-insensitive manner: +# pip considers dnspython[DNSSEC] and dnspython[dnssec] to be equal, but +# packaging markers treat extras in a case-sensitive manner. To solve this +# issue, we introduce a comparison operator that compares case-insensitively +# if both sides of the comparison are strings. And then we inject this +# operator into packaging.markers to be used when comparing names of extras. +# Fedora BZ: https://bugzilla.redhat.com/show_bug.cgi?id=1936875 +# Upstream issue: https://discuss.python.org/t/what-extras-names-are-treated-as-equal-and-why/7614 +# - After it's established upstream what is the canonical form of an extras +# name, we plan to open an issue with packaging to hopefully solve this +# there without having to resort to monkeypatching. +def str_lower_eq(a, b): + if isinstance(a, str) and isinstance(b, str): + return a.lower() == b.lower() + else: + return a == b +packaging.markers._operators["=="] = str_lower_eq + +try: + from importlib.metadata import PathDistribution +except ImportError: + from importlib_metadata import PathDistribution + +try: + from pathlib import Path +except ImportError: + from pathlib2 import Path + + +def normalize_name(name): + """https://www.python.org/dev/peps/pep-0503/#normalized-names""" + return re.sub(r'[-_.]+', '-', name).lower() + + +def legacy_normalize_name(name): + """Like pkg_resources Distribution.key property""" + return re.sub(r'[-_]+', '-', name).lower() + + +class Requirement(Requirement_): + def __init__(self, requirement_string): + super(Requirement, self).__init__(requirement_string) + self.normalized_name = normalize_name(self.name) + self.legacy_normalized_name = legacy_normalize_name(self.name) + + +class Distribution(PathDistribution): + def __init__(self, path): + super(Distribution, self).__init__(Path(path)) + + # Check that the initialization went well and metadata are not missing or corrupted + # name is the most important attribute, if it doesn't exist, import failed + if not self.name or not isinstance(self.name, str): + print("*** PYTHON_METADATA_FAILED_TO_PARSE_ERROR___SEE_STDERR ***") + print('Error: Python metadata at `{}` are missing or corrupted.'.format(path), file=stderr) + exit(65) # os.EX_DATAERR + + self.normalized_name = normalize_name(self.name) + self.legacy_normalized_name = legacy_normalize_name(self.name) + self.requirements = [Requirement(r) for r in self.requires or []] + self.extras = [ + v.lower() for k, v in self.metadata.items() if k == 'Provides-Extra'] + self.py_version = self._parse_py_version(path) + + # `name` is defined as a property exactly like this in Python 3.10 in the + # PathDistribution class. Due to that we can't redefine `name` as a normal + # attribute. So we copied the Python 3.10 definition here into the code so + # that it works also on previous Python/importlib_metadata versions. + @property + def name(self): + """Return the 'Name' metadata for the distribution package or None.""" + return self.metadata.get('Name') + + def _parse_py_version(self, path): + # Try to parse the Python version from the path the metadata + # resides at (e.g. /usr/lib/pythonX.Y/site-packages/...) + res = re.search(r"/python(?P<pyver>\d+\.\d+)/", path) + if res: + return res.group('pyver') + # If that hasn't worked, attempt to parse it from the metadata + # directory name + res = re.search(r"-py(?P<pyver>\d+.\d+)[.-]egg-info$", path) + if res: + return res.group('pyver') + return None + + def requirements_for_extra(self, extra): + extra_deps = [] + # we are only interested in dependencies with extra == 'our_extra' marker + for req in self.requirements: + # no marker at all, nothing to evaluate + if not req.marker: + continue + # does the marker include extra == 'our_extra'? + # we can only evaluate the marker as a whole, + # so we evaluate it twice (using 2 different marker_envs) + # and see if it only evaluates to True with our extra + if (req.marker.evaluate(get_marker_env(self, extra)) and + not req.marker.evaluate(get_marker_env(self, None))): + extra_deps.append(req) + return extra_deps + + def __repr__(self): + return '{} from {}'.format(self.name, self._path) + + +class RpmVersion(): + def __init__(self, version_id): + version = parse(version_id) + if isinstance(version._version, str): + self.version = version._version + else: + self.epoch = version._version.epoch + self.version = list(version._version.release) + self.pre = version._version.pre + self.dev = version._version.dev + self.post = version._version.post + # version.local is ignored as it is not expected to appear + # in public releases + # https://www.python.org/dev/peps/pep-0440/#local-version-identifiers + + def is_legacy(self): + return isinstance(self.version, str) + + def increment(self): + self.version[-1] += 1 + self.pre = None + self.dev = None + self.post = None + return self + + def is_zero(self): + return self.__str__() == '0' + + def __str__(self): + if self.is_legacy(): + return self.version + if self.epoch: + rpm_epoch = str(self.epoch) + ':' + else: + rpm_epoch = '' + while len(self.version) > 1 and self.version[-1] == 0: + self.version.pop() + rpm_version = '.'.join(str(x) for x in self.version) + if self.pre: + rpm_suffix = '~{}'.format(''.join(str(x) for x in self.pre)) + elif self.dev: + rpm_suffix = '~~{}'.format(''.join(str(x) for x in self.dev)) + elif self.post: + rpm_suffix = '^post{}'.format(self.post[1]) + else: + rpm_suffix = '' + return '{}{}{}'.format(rpm_epoch, rpm_version, rpm_suffix) + + +def convert_compatible(name, operator, version_id): + if version_id.endswith('.*'): + print("*** INVALID_REQUIREMENT_ERROR___SEE_STDERR ***") + print('Invalid requirement: {} {} {}'.format(name, operator, version_id), file=stderr) + exit(65) # os.EX_DATAERR + version = RpmVersion(version_id) + if version.is_legacy(): + # LegacyVersions are not supported in this context + print("*** INVALID_REQUIREMENT_ERROR___SEE_STDERR ***") + print('Invalid requirement: {} {} {}'.format(name, operator, version_id), file=stderr) + exit(65) # os.EX_DATAERR + if len(version.version) == 1: + print("*** INVALID_REQUIREMENT_ERROR___SEE_STDERR ***") + print('Invalid requirement: {} {} {}'.format(name, operator, version_id), file=stderr) + exit(65) # os.EX_DATAERR + upper_version = RpmVersion(version_id) + upper_version.version.pop() + upper_version.increment() + return '({} >= {} with {} < {})'.format( + name, version, name, upper_version) + + +def convert_equal(name, operator, version_id): + if version_id.endswith('.*'): + version_id = version_id[:-2] + '.0' + return convert_compatible(name, '~=', version_id) + version = RpmVersion(version_id) + return '{} = {}'.format(name, version) + + +def convert_arbitrary_equal(name, operator, version_id): + if version_id.endswith('.*'): + print("*** INVALID_REQUIREMENT_ERROR___SEE_STDERR ***") + print('Invalid requirement: {} {} {}'.format(name, operator, version_id), file=stderr) + exit(65) # os.EX_DATAERR + version = RpmVersion(version_id) + return '{} = {}'.format(name, version) + + +def convert_not_equal(name, operator, version_id): + if version_id.endswith('.*'): + version_id = version_id[:-2] + version = RpmVersion(version_id) + if version.is_legacy(): + # LegacyVersions are not supported in this context + print("*** INVALID_REQUIREMENT_ERROR___SEE_STDERR ***") + print('Invalid requirement: {} {} {}'.format(name, operator, version_id), file=stderr) + exit(65) # os.EX_DATAERR + version_gt = RpmVersion(version_id).increment() + version_gt_operator = '>=' + # Prevent dev and pre-releases from satisfying a < requirement + version = '{}~~'.format(version) + else: + version = RpmVersion(version_id) + version_gt = version + version_gt_operator = '>' + return '({} < {} or {} {} {})'.format( + name, version, name, version_gt_operator, version_gt) + + +def convert_ordered(name, operator, version_id): + if version_id.endswith('.*'): + # PEP 440 does not define semantics for prefix matching + # with ordered comparisons + # see: https://github.com/pypa/packaging/issues/320 + # and: https://github.com/pypa/packaging/issues/321 + # This style of specifier is officially "unsupported", + # even though it is processed. Support may be removed + # in version 21.0. + version_id = version_id[:-2] + version = RpmVersion(version_id) + if operator == '>': + # distutils will allow a prefix match with '>' + operator = '>=' + if operator == '<=': + # distutils will not allow a prefix match with '<=' + operator = '<' + else: + version = RpmVersion(version_id) + # For backwards compatibility, fallback to previous behavior with LegacyVersions + if not version.is_legacy(): + # Prevent dev and pre-releases from satisfying a < requirement + if operator == '<' and not version.pre and not version.dev and not version.post: + version = '{}~~'.format(version) + # Prevent post-releases from satisfying a > requirement + if operator == '>' and not version.pre and not version.dev and not version.post: + version = '{}.0'.format(version) + return '{} {} {}'.format(name, operator, version) + + +OPERATORS = {'~=': convert_compatible, + '==': convert_equal, + '===': convert_arbitrary_equal, + '!=': convert_not_equal, + '<=': convert_ordered, + '<': convert_ordered, + '>=': convert_ordered, + '>': convert_ordered} + + +def convert(name, operator, version_id): + try: + return OPERATORS[operator](name, operator, version_id) + except Exception as exc: + raise RuntimeError("Cannot process Python package version `{}` for name `{}`". + format(version_id, name)) from exc + + +def get_marker_env(dist, extra): + # packaging uses a default environment using + # platform.python_version to evaluate if a dependency is relevant + # based on environment markers [1], + # e.g. requirement `argparse;python_version<"2.7"` + # + # Since we're running this script on one Python version while + # possibly evaluating packages for different versions, we + # set up an environment with the version we want to evaluate. + # + # [1] https://www.python.org/dev/peps/pep-0508/#environment-markers + return {"python_full_version": dist.py_version, + "python_version": dist.py_version, + "extra": extra} + + +def main(): + """To allow this script to be importable (and its classes/functions + reused), actions are defined in the main function and are performed only + when run as a main script.""" + parser = argparse.ArgumentParser(prog=argv[0]) + group = parser.add_mutually_exclusive_group(required=True) + group.add_argument('-P', '--provides', action='store_true', help='Print Provides') + group.add_argument('-R', '--requires', action='store_true', help='Print Requires') + group.add_argument('-r', '--recommends', action='store_true', help='Print Recommends') + group.add_argument('-C', '--conflicts', action='store_true', help='Print Conflicts') + group.add_argument('-E', '--extras', action='store_true', help='[Unused] Generate spec file snippets for extras subpackages') + group_majorver = parser.add_mutually_exclusive_group() + group_majorver.add_argument('-M', '--majorver-provides', action='store_true', help='Print extra Provides with Python major version only') + group_majorver.add_argument('--majorver-provides-versions', action='append', + help='Print extra Provides with Python major version only for listed ' + 'Python VERSIONS (appended or comma separated without spaces, e.g. 2.7,3.9)') + parser.add_argument('-m', '--majorver-only', action='store_true', help='Print Provides/Requires with Python major version only') + parser.add_argument('-n', '--normalized-names-format', action='store', + default="legacy-dots", choices=["pep503", "legacy-dots"], + help='Format of normalized names according to pep503 or legacy format that allows dots [default]') + parser.add_argument('--normalized-names-provide-both', action='store_true', + help='Provide both `pep503` and `legacy-dots` format of normalized names (useful for a transition period)') + parser.add_argument('-L', '--legacy-provides', action='store_true', help='Print extra legacy pythonegg Provides') + parser.add_argument('-l', '--legacy', action='store_true', help='Print legacy pythonegg Provides/Requires instead') + parser.add_argument('--console-scripts-nodep-setuptools-since', action='store', + help='An optional Python version (X.Y), at least 3.8. ' + 'For that version and any newer version, ' + 'a dependency on "setuptools" WILL NOT be generated for packages with console_scripts/gui_scripts entry points. ' + 'By setting this flag, you guarantee that setuptools >= 47.2.0 is used ' + 'during the build of packages for this and any newer Python version.') + parser.add_argument('--require-extras-subpackages', action='store_true', + help="If there is a dependency on a package with extras functionality, require the extras subpackage") + parser.add_argument('--package-name', action='store', help="Name of the RPM package that's being inspected. Required for extras requires/provides to work.") + parser.add_argument('--namespace', action='store', help="Namespace for the printed Requires, Provides, Recommends and Conflicts") + parser.add_argument('--fail-if-zero', action='store_true', help='Fail the script if the automatically generated Provides version was 0, which usually indicates a packaging error.') + parser.add_argument('files', nargs=argparse.REMAINDER, help="Files from the RPM package that are to be inspected, can also be supplied on stdin") + args = parser.parse_args() + + if args.fail_if_zero and not args.provides: + raise parser.error('--fail-if-zero only works with --provides') + + py_abi = args.requires + py_deps = {} + + if args.majorver_provides_versions: + # Go through the arguments (can be specified multiple times), + # and parse individual versions (can be comma-separated) + args.majorver_provides_versions = [v for vstring in args.majorver_provides_versions + for v in vstring.split(",")] + + # If normalized_names_require_pep503 is True we require the pep503 + # normalized name, if it is False we provide the legacy normalized name + normalized_names_require_pep503 = args.normalized_names_format == "pep503" + + # If normalized_names_provide_pep503/legacy is True we provide the + # pep503/legacy normalized name, if it is False we don't + normalized_names_provide_pep503 = \ + args.normalized_names_format == "pep503" or args.normalized_names_provide_both + normalized_names_provide_legacy = \ + args.normalized_names_format == "legacy-dots" or args.normalized_names_provide_both + + # At least one type of normalization must be provided + assert normalized_names_provide_pep503 or normalized_names_provide_legacy + + if args.console_scripts_nodep_setuptools_since: + nodep_setuptools_pyversion = parse(args.console_scripts_nodep_setuptools_since) + if nodep_setuptools_pyversion < parse("3.8"): + print("Only version 3.8+ is supported in --console-scripts-nodep-setuptools-since", file=stderr) + print("*** PYTHON_EXTRAS_ARGUMENT_ERROR___SEE_STDERR ***") + exit(65) # os.EX_DATAERR + else: + nodep_setuptools_pyversion = None + + # Is this script being run for an extras subpackage? + extras_subpackage = None + if args.package_name and '+' in args.package_name: + # The extras names are encoded in the package names after the + sign. + # We take the part after the rightmost +, ignoring when empty, + # this allows packages like nicotine+ or c++ to work fine. + # While packages with names like +spam or foo+bar would break, + # names started with the plus sign are not very common + # and pluses in the middle can be easily replaced with dashes. + # Python extras names don't contain pluses according to PEP 508. + package_name_parts = args.package_name.rpartition('+') + extras_subpackage = package_name_parts[2].lower() or None + + namespace = (args.namespace + "({})") if args.namespace else "{}" + + for f in (args.files or stdin.readlines()): + f = f.strip() + lower = f.lower() + name = 'python(abi)' + # add dependency based on path, versioned if within versioned python directory + if py_abi and (lower.endswith('.py') or lower.endswith('.pyc') or lower.endswith('.pyo')): + if name not in py_deps: + py_deps[name] = [] + running_python_version = '{}.{}'.format(*version_info[:2]) + purelib = get_path('purelib').split(running_python_version)[0] + platlib = get_path('platlib').split(running_python_version)[0] + for lib in (purelib, platlib): + if lib in f: + spec = ('==', f.split(lib)[1].split(sep)[0]) + if spec not in py_deps[name]: + py_deps[name].append(spec) + + # XXX: hack to workaround RPM internal dependency generator not passing directories + lower_dir = dirname(lower) + if lower_dir.endswith('.egg') or \ + lower_dir.endswith('.egg-info') or \ + lower_dir.endswith('.dist-info'): + lower = lower_dir + f = dirname(f) + # Determine provide, requires, conflicts & recommends based on egg/dist metadata + if lower.endswith('.egg') or \ + lower.endswith('.egg-info') or \ + lower.endswith('.dist-info'): + dist = Distribution(f) + if not dist.py_version: + warn("Version for {!r} has not been found".format(dist), RuntimeWarning) + continue + + # If processing an extras subpackage: + # Check that the extras name is declared in the metadata, or + # that there are some dependencies associated with the extras + # name in the requires.txt (this is an outdated way to declare + # extras packages). + # - If there is an extras package declared only in requires.txt + # without any dependencies, this check will fail. In that case + # make sure to use updated metadata and declare the extras + # package there. + if extras_subpackage and extras_subpackage not in dist.extras and not dist.requirements_for_extra(extras_subpackage): + print("*** PYTHON_EXTRAS_NOT_FOUND_ERROR___SEE_STDERR ***") + print(f"\nError: The package name contains an extras name `{extras_subpackage}` that was not found in the metadata.\n" + "Check if the extras were removed from the project. If so, consider removing the subpackage and obsoleting it from another.\n", file=stderr) + exit(65) # os.EX_DATAERR + + if args.majorver_provides or args.majorver_provides_versions or \ + args.majorver_only or args.legacy_provides or args.legacy: + # Get the Python major version + pyver_major = dist.py_version.split('.')[0] + if args.provides: + extras_suffix = f"[{extras_subpackage}]" if extras_subpackage else "" + # If egg/dist metadata says package name is python, we provide python(abi) + if dist.normalized_name == 'python': + name = namespace.format('python(abi)') + if name not in py_deps: + py_deps[name] = [] + py_deps[name].append(('==', dist.py_version)) + if not args.legacy or not args.majorver_only: + if normalized_names_provide_legacy: + name = namespace.format('python{}dist({}{})').format(dist.py_version, dist.legacy_normalized_name, extras_suffix) + if name not in py_deps: + py_deps[name] = [] + if normalized_names_provide_pep503: + name_ = namespace.format('python{}dist({}{})').format(dist.py_version, dist.normalized_name, extras_suffix) + if name_ not in py_deps: + py_deps[name_] = [] + if args.majorver_provides or args.majorver_only or \ + (args.majorver_provides_versions and dist.py_version in args.majorver_provides_versions): + if normalized_names_provide_legacy: + pymajor_name = namespace.format('python{}dist({}{})').format(pyver_major, dist.legacy_normalized_name, extras_suffix) + if pymajor_name not in py_deps: + py_deps[pymajor_name] = [] + if normalized_names_provide_pep503: + pymajor_name_ = namespace.format('python{}dist({}{})').format(pyver_major, dist.normalized_name, extras_suffix) + if pymajor_name_ not in py_deps: + py_deps[pymajor_name_] = [] + if args.legacy or args.legacy_provides: + legacy_name = namespace.format('pythonegg({})({})').format(pyver_major, dist.legacy_normalized_name) + if legacy_name not in py_deps: + py_deps[legacy_name] = [] + if dist.version: + version = dist.version + spec = ('==', version) + if args.fail_if_zero: + if RpmVersion(version).is_zero(): + print('*** PYTHON_PROVIDED_VERSION_NORMALIZES_TO_ZERO___SEE_STDERR ***') + print(f'\nError: The version in the Python package metadata {version} normalizes to zero.\n' + 'It\'s likely a packaging error caused by missing version information\n' + '(e.g. when using a version control system snapshot as a source).\n' + 'Try providing the version information manually when building the Python package,\n' + 'for example by setting the SETUPTOOLS_SCM_PRETEND_VERSION environment variable if the package uses setuptools_scm.\n' + 'If you are confident that the version of the Python package is intentionally zero,\n' + 'you may %define the _python_dist_allow_version_zero macro in the spec file to disable this check.\n', file=stderr) + exit(65) # os.EX_DATAERR + + if normalized_names_provide_legacy: + if spec not in py_deps[name]: + py_deps[name].append(spec) + if args.majorver_provides or \ + (args.majorver_provides_versions and dist.py_version in args.majorver_provides_versions): + py_deps[pymajor_name].append(spec) + if normalized_names_provide_pep503: + if spec not in py_deps[name_]: + py_deps[name_].append(spec) + if args.majorver_provides or \ + (args.majorver_provides_versions and dist.py_version in args.majorver_provides_versions): + py_deps[pymajor_name_].append(spec) + if args.legacy or args.legacy_provides: + if spec not in py_deps[legacy_name]: + py_deps[legacy_name].append(spec) + if args.requires or (args.recommends and dist.extras): + name = namespace.format('python(abi)') + # If egg/dist metadata says package name is python, we don't add dependency on python(abi) + if dist.normalized_name == 'python': + py_abi = False + if name in py_deps: + py_deps.pop(name) + elif py_abi and dist.py_version: + if name not in py_deps: + py_deps[name] = [] + spec = ('==', dist.py_version) + if spec not in py_deps[name]: + py_deps[name].append(spec) + + if extras_subpackage: + deps = [d for d in dist.requirements_for_extra(extras_subpackage)] + else: + deps = dist.requirements + + # console_scripts/gui_scripts entry points needed pkg_resources from setuptools + # on new Python/setuptools versions, this is no longer required + if nodep_setuptools_pyversion is None or parse(dist.py_version) < nodep_setuptools_pyversion: + if (dist.entry_points and + (lower.endswith('.egg') or + lower.endswith('.egg-info'))): + groups = {ep.group for ep in dist.entry_points} + if {"console_scripts", "gui_scripts"} & groups: + # stick them first so any more specific requirement + # overrides it + deps.insert(0, Requirement('setuptools')) + # add requires/recommends based on egg/dist metadata + for dep in deps: + # Even if we're requiring `foo[bar]`, also require `foo` + # to be safe, and to make it discoverable through + # `repoquery --whatrequires` + extras_suffixes = [""] + if args.require_extras_subpackages and dep.extras: + # A dependency can have more than one extras, + # i.e. foo[bar,baz], so let's go through all of them + extras_suffixes += [f"[{e.lower()}]" for e in dep.extras] + + for extras_suffix in extras_suffixes: + if normalized_names_require_pep503: + dep_normalized_name = dep.normalized_name + else: + dep_normalized_name = dep.legacy_normalized_name + + if args.legacy: + name = namespace.format('pythonegg({})({})').format(pyver_major, dep.legacy_normalized_name) + else: + if args.majorver_only: + name = namespace.format('python{}dist({}{})').format(pyver_major, dep_normalized_name, extras_suffix) + else: + name = namespace.format('python{}dist({}{})').format(dist.py_version, dep_normalized_name, extras_suffix) + + if dep.marker and not args.recommends and not extras_subpackage: + if not dep.marker.evaluate(get_marker_env(dist, '')): + continue + + if name not in py_deps: + py_deps[name] = [] + for spec in dep.specifier: + if (spec.operator, spec.version) not in py_deps[name]: + py_deps[name].append((spec.operator, spec.version)) + + # Unused, for automatic sub-package generation based on 'extras' from egg/dist metadata + # TODO: implement in rpm later, or...? + if args.extras: + print(dist.extras) + for extra in dist.extras: + print('%%package\textras-{}'.format(extra)) + print('Summary:\t{} extra for {} python package'.format(extra, dist.legacy_normalized_name)) + print('Group:\t\tDevelopment/Python') + for dep in dist.requirements_for_extra(extra): + for spec in dep.specifier: + if spec.operator == '!=': + print('Conflicts:\t{} {} {}'.format(dep.legacy_normalized_name, '==', spec.version)) + else: + print('Requires:\t{} {} {}'.format(dep.legacy_normalized_name, spec.operator, spec.version)) + print('%%description\t{}'.format(extra)) + print('{} extra for {} python package'.format(extra, dist.legacy_normalized_name)) + print('%%files\t\textras-{}\n'.format(extra)) + if args.conflicts: + # Should we really add conflicts for extras? + # Creating a meta package per extra with recommends on, which has + # the requires/conflicts in stead might be a better solution... + for dep in dist.requirements: + for spec in dep.specifier: + if spec.operator == '!=': + if dep.legacy_normalized_name not in py_deps: + py_deps[dep.legacy_normalized_name] = [] + spec = ('==', spec.version) + if spec not in py_deps[dep.legacy_normalized_name]: + py_deps[dep.legacy_normalized_name].append(spec) + + for name in sorted(py_deps): + if py_deps[name]: + # Print out versioned provides, requires, recommends, conflicts + spec_list = [] + for spec in py_deps[name]: + spec_list.append(convert(name, spec[0], spec[1])) + if len(spec_list) == 1: + print(spec_list[0]) + else: + # Sort spec_list so that the results can be tested easily + print('({})'.format(' with '.join(sorted(spec_list)))) + else: + # Print out unversioned provides, requires, recommends, conflicts + print(name) + + +if __name__ == "__main__": + """To allow this script to be importable (and its classes/functions + reused), actions are performed only when run as a main script.""" + try: + main() + except Exception as exc: + print("*** PYTHONDISTDEPS_GENERATORS_FAILED ***", flush=True) + raise RuntimeError("Error: pythondistdeps.py generator encountered an unhandled exception and was terminated.") from exc + |