Backport PR #16126: TST: test_fork: Missing join

anntzer · meeseeksmachine · commit 5335c4e1a5f8 · 2020-01-07T09:24:35.000Z
diff --git a/lib/matplotlib/tests/test_font_manager.py b/lib/matplotlib/tests/test_font_manager.py
@@ -198,4 +198,5 @@ def _model_handler(_):
 def test_fork():
     _model_handler(0)  # Make sure the font cache is filled.
     ctx = multiprocessing.get_context("fork")
-    ctx.Pool(processes=2).map(_model_handler, range(2))
+    with ctx.Pool(processes=2) as pool:
+        pool.map(_model_handler, range(2))
