[issue26510] [argparse] Add required argument to add_subparsers

[Ned Deily]

Ned Deily <nad at python.org> added the comment:


New changeset f168c17b075b4103eaf1f619acd3bca3890fbac7 by Ned Deily (Miss Islington (bot)) in branch '3.7':
bpo-26510: Add versionchanged for required arg of add_subparsers (GH-16588)
https://github.com/python/cpython/commit/f168c17b075b4103eaf1f619acd3bca3890fbac7


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