contents cannot be read.

an unreadable directory.

new test cases for importing bad packages and unreadable packages dirs.

Fuchs, updated by Tiago Gonçalves.

This introduces a small private API for this common pattern.
The issue has been discovered thanks to Martin's huge-mem buildbot.

This introduces a small private API for this common pattern.
The issue has been discovered thanks to Martin's huge-mem buildbot.

supporting C integer types `ssize_t` and `size_t`, respectively.

The packaging.install.remove function (a.k.a. the uninstall feature)
takes a path argument to allow client code to use custom directories
instead of sys.path.  The test used to give self.root_dir as path, which
corresponds to a prefix option, but prefix is not on sys.path, it’s only
the base directory used to compute the stdlib and site-packages
directory paths.  The test now gives a valid site-packages path to the
function.

install_lib may be the name of a module, a command or an option, so I
find it clearer to use site_packages to refer to a string object
containing the path of the site-packages directory created in a
temporary directory during tests.