to unwarranted assumption about absolute paths: on OS X /var is a
symlink to /private/var.  (Also true for /etc and /tmp).

find_module() now raises a RuntimeError, instead of ImportError, on an error on
sys.path or sys.meta_path because load_package() and import_submodule() returns
None and clear the exception if a ImportError occurred.

find_module() now raises a RuntimeError, instead of ImportError, on an error on
sys.path or sys.meta_path because load_package() and import_submodule() returns
None and clear the exception if a ImportError occurred.

This method was supposed to return only the file under the dist-info
directory, but it actually returned all installed files.

The tests didn’t catch this because they were flawed; I updated them.
Thanks to Nadeem Vawda and Jeremy Kloth for testing.

As a bonus, the removal of os.path.relpath use should also fix the
Windows buildbots.

with invalid hex escape sequences, like b'\x0'.
(Original patch by Claudiu Popa.)

with invalid hex escape sequences, like b'\x0'.
(Original patch by Claudiu Popa.)

sys/xattr.h is glibc while attr/xattr.h is a separate library.

  object triggers the garbage collector.

object triggers the garbage collector.

Factor out the distribution file-system safe name functions from install_distinfo to allow all metadata consumers access to them.

The command without arguments already prints all installed distributions
found.

In addition, change “releases” for “projects” in the description of the
list action.  Strictly speaking, one installed distribution satisfies
the requirement for a release (i.e. version) of a project, but as
currently only one release per project can be installed at a time, the
two are somewhat equivalent, and “project” is more understandable in
help texts (which call their argument “dist”, by the way..)

While we're at it, also document ZLIB_VERSION.

Patch by Torsten Landschoff.

instead of ignoring it and always using a compression level of 9.

Thanks July Tikhonov.

This is copied from the namesake distutils command; there is no
automated test, so buildbots won’t call for my head this time, but it
should be okay as Python 3 users have tested the distutils command.

In dry-run mode, packaging commands should log the same info as in real
operation and should collect the same files in self.outputs, so that
users can run a command in verbose and dry-run mode to see exactly what
operations will be done in the real run.