8571f35b73
There is no consensus on the upstream MR about how to solve this: https://gitlab.gnome.org/GNOME/pygobject/-/merge_requests/415 Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/9332>
63 lines
2.4 KiB
Diff
63 lines
2.4 KiB
Diff
From c0fc6aaa53d34b374c1c6c12cc4c4e7a0176f803 Mon Sep 17 00:00:00 2001
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From: Nirbheek Chauhan <nirbheek@centricular.com>
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Date: Sun, 2 Mar 2025 20:26:11 +0530
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Subject: [PATCH] gi: Call os.add_dll_directory() on Windows when possible
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On macOS and Linux, the dynamic linker is used to find dependent
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shared libraries when loading a module. This usually means RPATH.
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On Windows, there is no RPATH, so the dynamic linker usually uses the
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PATH environment variable for dependent DLL resolution. Starting with
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Python 3.8, this is disabled, and you must manually call
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os.add_dll_directory() on each directory which contains DLLs you want
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to use. This can be disabled with PYTHONLEGACYWINDOWSDLLLOADING=1
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In most cases we are running as part of a "prefix", and we can deduce
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the bindir with all the DLLs automatically. In other cases, such as if
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we're inside a meson devenv, there is no such prefix and in fact there
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may be many directories with DLLs that we need. For those, add
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PYGI_DLL_DIRS which must be a patsep-separated list of directories to
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use.
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Co-Authored-by: L. E. Segovia <amy@centricular.com>
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---
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gi/__init__.py | 22 ++++++++++++++++++++++
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1 file changed, 22 insertions(+)
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diff --git a/gi/__init__.py b/gi/__init__.py
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index 826489a1..a7af6152 100644
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--- a/gi/__init__.py
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+++ b/gi/__init__.py
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@@ -36,6 +36,28 @@ _static_binding_error = ('When using gi.repository you must not import static '
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if 'gobject' in sys.modules:
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raise ImportError(_static_binding_error)
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+if sys.platform.startswith('win'):
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+ bindirs = []
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+ if 'PYGI_DLL_DIRS' in os.environ:
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+ bindirs = os.environ['PYGI_DLL_DIRS'].split(os.pathsep)
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+ else:
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+ # Find prefix assuming directory layout is Lib/site-packages/gi (msvc)
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+ prefix = os.path.abspath(os.path.join(
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+ os.path.dirname(__file__),
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+ os.path.pardir,
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+ os.path.pardir,
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+ os.path.pardir
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+ ))
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+ bindir = os.path.join(prefix, 'bin')
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+ if not os.path.isdir(bindir):
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+ # Find prefix assuming layout is lib/pythonx.y/site-packages/gi (mingw)
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+ prefix = os.path.dirname(prefix)
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+ bindir = os.path.join(prefix, 'bin')
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+ if not os.path.isdir(bindir):
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+ raise ImportError('Could not deduce DLL directories, please set PYGI_DLL_DIRS')
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+ bindirs = [bindir]
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+ for bindir in bindirs:
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+ os.add_dll_directory(bindir)
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from . import _gi
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from ._gi import _API # noqa: F401
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--
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2.45.2.windows.1
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