Tobias Bergkvist <tob...@bergkv.ist> added the comment:
An alternative to using _dyld_shared_cache_contains_path is to use dlopen to check for library existence (which is what Apple recommends in their change notes: https://developer.apple.com/documentation/macos-release-notes/macos-big-sur-11_0_1-release-notes). > New in macOS Big Sur 11.0.1, the system ships with a built-in dynamic linker > cache of all system-provided libraries. As part of this change, copies of > dynamic libraries are no longer present on the filesystem. Code that attempts > to check for dynamic library presence by looking for a file at a path or > enumerating a directory will fail. Instead, check for library presence by > attempting to dlopen() the path, which will correctly check for the library > in the cache. (62986286) I have created a PR which modifies the current find_library from using _dyld_shared_cache_contains_path to dlopen. It passes all of the existing find_library-tests: https://github.com/python/cpython/pull/27251 There might be downsides to using dlopen (performance?) or something else I haven't considered. The huge upside however, is that the function is basically available on all Unix-systems. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue44689> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
