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bpo-15303: Support widgets with boolean value False in Tkinter (GH-23904)

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Use `widget is None` instead of checking the boolean value of a widget.
This commit is contained in:
Serhiy Storchaka 2020-12-25 17:04:26 +02:00 • committed by GitHub
parent 954a7427ba
commit bb70b2afe3
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8 changed files with 30 additions and 29 deletions
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6
Lib/tkinter/font.py
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@ -68,7 +68,7 @@ class Font:
def __init__(self, root=None, font=None, name=None, exists=False,
**options):
if not root:
if root is None:
root = tkinter._get_default_root('use font')
tk = getattr(root, 'tk', root)
if font:
@ -183,7 +183,7 @@ class Font:
def families(root=None, displayof=None):
"Get font families (as a tuple)"
if not root:
if root is None:
root = tkinter._get_default_root('use font.families()')
args = ()
if displayof:
@ -193,7 +193,7 @@ def families(root=None, displayof=None):
def names(root=None):
"Get names of defined fonts (as a tuple)"
if not root:
if root is None:
root = tkinter._get_default_root('use font.names()')
return root.tk.splitlist(root.tk.call("font", "names"))