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'''
Complain about multi-argument exception constructors where the first argument
contains a percent sign, thus suggesting a % string formatting was intended
instead. The same holds for a string containing {...} suggesting str.format()
was intended.
'''
def bad_percent(arg):
'''Raising a percent-formatted string and an argument'''
raise KeyError('Bad key: %r', arg) # [raising-format-tuple]
def good_percent(arg):
'''Instead of passing multiple arguments, format the message'''
raise KeyError('Bad key: %r' % arg)
def bad_multiarg(name, value):
'''Raising a formatted string and multiple additional arguments'''
raise ValueError('%s measures %.2f', name, value) # [raising-format-tuple]
def good_multiarg(name, value):
'''The arguments have to be written as a tuple for formatting'''
raise ValueError('%s measures %.2f' % (name, value))
def bad_braces(arg):
'''Curly braces as placeholders'''
raise KeyError('Bad key: {:r}', arg) # [raising-format-tuple]
def good_braces(arg):
'''Call str.format() instead'''
raise KeyError('Bad key: {:r}'.format(arg))
def bad_multistring(arg):
'''Multiple adjacent string literals'''
raise AssertionError( # [raising-format-tuple]
'Long message about %s '
"split over several adjacent literals", arg)
def bad_triplequote(arg):
'''String literals with triple quotes'''
raise AssertionError( # [raising-format-tuple]
'''Long message about %s
split over several adjacent literals''', arg)
def bad_unicode(arg):
'''Unicode string literal'''
raise ValueError(u'Bad %s', arg) # [raising-format-tuple]
def raise_something_without_name(arg):
'''Regression test for nodes without .node attribute'''
import standard_exceptions # pylint: disable=import-error
raise standard_exceptions.MyException(u'An %s', arg) # [raising-format-tuple]
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