Patch the Python 3.6 copy module to support re

jwilges · Apr 4, 2020 · 4108a50 · 4108a50
1 parent 49fa64b
commit 4108a50
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/drover/_copy_patch.py b/drover/_copy_patch.py
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+"""Conditional patches for Python's `copy` module"""
+import copy
+import re
+import sys
+
+if sys.version_info < (3, 7):
+    # See: <https://stackoverflow.com/questions/6279305/typeerror-cannot-deepcopy-this-pattern-object>
+    copy._deepcopy_dispatch[type(re.compile(''))] = lambda r, _: r # pylint: disable=protected-access