diff options
| -rw-r--r-- | changelog.d/3776.misc.rst | 2 | ||||
| -rw-r--r-- | pkg_resources/__init__.py | 9 | ||||
| -rw-r--r-- | setuptools/__init__.py | 21 |
3 files changed, 31 insertions, 1 deletions
diff --git a/changelog.d/3776.misc.rst b/changelog.d/3776.misc.rst new file mode 100644 index 00000000..3a9ba9d8 --- /dev/null +++ b/changelog.d/3776.misc.rst @@ -0,0 +1,2 @@ +Added note about using the ``--pep-517`` flag with ``pip`` to workaround +``InvalidVersion`` errors for packages that are already installed in the system. diff --git a/pkg_resources/__init__.py b/pkg_resources/__init__.py index bba775b9..db4879d3 100644 --- a/pkg_resources/__init__.py +++ b/pkg_resources/__init__.py @@ -2675,7 +2675,14 @@ class Distribution: @property def parsed_version(self): if not hasattr(self, "_parsed_version"): - self._parsed_version = parse_version(self.version) + try: + self._parsed_version = parse_version(self.version) + except packaging.version.InvalidVersion as ex: + info = f"(package: {self.project_name})" + if hasattr(ex, "add_note"): + ex.add_note(info) # PEP 678 + raise + raise packaging.version.InvalidVersion(f"{str(ex)} {info}") from None return self._parsed_version diff --git a/setuptools/__init__.py b/setuptools/__init__.py index 6c24cc2b..89f6f06e 100644 --- a/setuptools/__init__.py +++ b/setuptools/__init__.py @@ -77,7 +77,28 @@ def _install_setup_requires(attrs): # Honor setup.cfg's options. dist.parse_config_files(ignore_option_errors=True) if dist.setup_requires: + _fetch_build_eggs(dist) + + +def _fetch_build_eggs(dist): + try: dist.fetch_build_eggs(dist.setup_requires) + except Exception as ex: + msg = """ + It is possible a package already installed in your system + contains an version that is invalid according to PEP 440. + You can try `pip install --use-pep517` as a workaround for this problem, + or rely on a new virtual environment. + + If the problem refers to a package that is not installed yet, + please contact that package's maintainers or distributors. + """ + if "InvalidVersion" in ex.__class__.__name__: + if hasattr(ex, "add_note"): + ex.add_note(msg) # PEP 678 + else: + dist.announce(f"\n{msg}\n") + raise def setup(**attrs): |