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Defer import of shutil which only needed for help and usage (GH-17334)

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Raymond Hettinger 2019-11-21 22:51:45 -08:00 • committed by GitHub
parent 65444cf7fe
commit b4e5eeac26
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1 changed files with 3 additions and 3 deletions
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Lib/argparse.py
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@ -87,7 +87,6 @@ __all__ = [
import os as _os import os as _os
import re as _re import re as _re
import shutil as _shutil
import sys as _sys import sys as _sys
from gettext import gettext as _, ngettext from gettext import gettext as _, ngettext
@ -167,7 +166,8 @@ class HelpFormatter(object):
# default setting for width # default setting for width
if width is None: if width is None:
width = _shutil.get_terminal_size().columns import shutil
width = shutil.get_terminal_size().columns
width -= 2 width -= 2
self._prog = prog self._prog = prog
@ -264,7 +264,7 @@ class HelpFormatter(object):
invocations.append(get_invocation(subaction)) invocations.append(get_invocation(subaction))
# update the maximum item length # update the maximum item length
invocation_length = max([len(s) for s in invocations]) invocation_length = max(map(len, invocations))
action_length = invocation_length + self._current_indent action_length = invocation_length + self._current_indent
self._action_max_length = max(self._action_max_length, self._action_max_length = max(self._action_max_length,
action_length) action_length)