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# pylint: disable=missing-docstring, comparison-with-itself
if 2 is 2: # [literal-comparison]
pass
if "a" is b"a": # [literal-comparison]
pass
if 2.0 is 3.0: # [literal-comparison]
pass
if () is (1, 2, 3):
pass
if () is {1:2, 2:3}: # [literal-comparison]
pass
if [] is [4, 5, 6]: # [literal-comparison]
pass
if () is {1, 2, 3}: # [literal-comparison]
pass
if () is not {1:2, 2:3}: # [literal-comparison]
pass
if [] is not [4, 5, 6]: # [literal-comparison]
pass
if () is not {1, 2, 3}: # [literal-comparison]
pass
CONST = 24
if CONST is 0: # [literal-comparison]
pass
if CONST is 1: # [literal-comparison]
pass
if CONST is 42: # [literal-comparison]
pass
# We do not do inference for this check, since the comparing
# object might be used as a sentinel.
if () is CONST:
pass
def github_issue_3031(arg=()):
if arg is ():
pass
if arg is not ():
pass
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