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19 lines
742 B
19 lines
742 B
diff --git a/src/sage/doctest/forker.py b/src/sage/doctest/forker.py
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index 02e18e67e7..2ebf6eb35f 100644
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--- a/src/sage/doctest/forker.py
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+++ b/src/sage/doctest/forker.py
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@@ -1075,6 +1075,14 @@ class SageDocTestRunner(doctest.DocTestRunner, object):
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sage: set(ex2.predecessors) == set([ex0,ex1])
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True
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"""
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+
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+ # Fix ECL dir race conditions by using a separate dir for each process
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+ # (https://trac.sagemath.org/ticket/26968)
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+ os.environ['MAXIMA_USERDIR'] = "{}/sage-maxima-{}".format(
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+ tempfile.gettempdir(),
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+ os.getpid()
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+ )
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+
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if isinstance(globs, RecordingDict):
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globs.start()
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example.sequence_number = len(self.history)
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