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Title: bpo-36144: Fixed test in test_collections.py by curtisbucher · Pull Request #19221 · python/cpython · GitHub

Open Graph Title: bpo-36144: Fixed test in test_collections.py by curtisbucher · Pull Request #19221 · python/cpython

X Title: bpo-36144: Fixed test in test_collections.py by curtisbucher · Pull Request #19221 · python/cpython

Description: The Python programming language. Contribute to python/cpython development by creating an account on GitHub.

Open Graph Description: We should be using .copy() to compare key, value pairs and ChainMap in line 257. Otherwise it does not properly check union behavior. @brandtbucher https://bugs.python.org/issue36144

X Description: We should be using .copy() to compare key, value pairs and ChainMap in line 257. Otherwise it does not properly check union behavior. @brandtbucher https://bugs.python.org/issue36144

Opengraph URL: https://github.com/python/cpython/pull/19221

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