[Git][debian-gis-team/mapproxy][master] Use multiprocessing.get_context() instead of multiprocessing.set_start_method().

[Bas Couwenberg (@sebastic)]

Bas Couwenberg pushed to branch master at Debian GIS Project / mapproxy


Commits:
c589a732 by Bas Couwenberg at 2025-12-18T08:03:42+01:00
Use multiprocessing.get_context() instead of multiprocessing.set_start_method().

- - - - -


1 changed file:

- debian/patches/python3.14.patch


Changes:

=====================================
debian/patches/python3.14.patch
=====================================
@@ -1,32 +1,47 @@
 Description: Explicitly use 'fork' instead of 'forkserver'.
  Fixes FTBFS with python3.14.
 Author: Bas Couwenberg <sebastic at debian.org>
-Forwarded: https://github.com/mapproxy/mapproxy/pull/1355
-Applied-Upstream: https://github.com/mapproxy/mapproxy/commit/91f89459f1397b3e87024a835c8d47f7be29d17d
+Forwarded: https://github.com/mapproxy/mapproxy/pull/1356
 
---- a/mapproxy/test/conftest.py
-+++ b/mapproxy/test/conftest.py
-@@ -1,3 +1,8 @@
-+import multiprocessing
+--- a/mapproxy/test/unit/test_seed_cachelock.py
++++ b/mapproxy/test/unit/test_seed_cachelock.py
+@@ -36,7 +36,9 @@ class TestCacheLock(object):
+             assert True
+ 
+     def test_locked_by_process_no_block(self, lock_file):
+-        proc_is_locked = multiprocessing.Event()
++        ctx = multiprocessing.get_context('fork')
 +
-+import pytest
++        proc_is_locked = ctx.Event()
+ 
+         def lock():
+             locker = CacheLocker(lock_file)
+@@ -44,7 +46,7 @@ class TestCacheLock(object):
+                 proc_is_locked.set()
+                 time.sleep(10)
+ 
+-        p = multiprocessing.Process(target=lock)
++        p = ctx.Process(target=lock)
+         p.start()
+         # wait for process to start
+         proc_is_locked.wait()
+@@ -66,7 +68,9 @@ class TestCacheLock(object):
+             p.join()
+ 
+     def test_locked_by_process_waiting(self, lock_file):
+-        proc_is_locked = multiprocessing.Event()
++        ctx = multiprocessing.get_context('fork')
 +
-+
- def pytest_configure(config):
-     import sys
-     sys._called_from_pytest = True
-@@ -6,3 +11,14 @@ def pytest_configure(config):
- def pytest_unconfigure(config):
-     import sys
-     del sys._called_from_pytest
-+
-+
-+ at pytest.fixture(scope="session", autouse=True)
-+def use_multiprocessing_fork_on_linux():
-+    import sys
-+    if sys.platform != "linux":
-+        # Windows and macOS use 'spawn' by default
-+        return
-+
-+    # 'forkserver' is default since Python 3.14, but can't pickle everything.
-+    multiprocessing.set_start_method("fork")
++        proc_is_locked = ctx.Event()
+ 
+         def lock():
+             locker = CacheLocker(lock_file)
+@@ -74,7 +78,7 @@ class TestCacheLock(object):
+                 proc_is_locked.set()
+                 time.sleep(.1)
+ 
+-        p = multiprocessing.Process(target=lock)
++        p = ctx.Process(target=lock)
+         start_time = time.time()
+         p.start()
+         # wait for process to start



View it on GitLab: https://salsa.debian.org/debian-gis-team/mapproxy/-/commit/c589a732f1fad95bb3847af188cbb83b4af47494

-- 
View it on GitLab: https://salsa.debian.org/debian-gis-team/mapproxy/-/commit/c589a732f1fad95bb3847af188cbb83b4af47494
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