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Add the 'bool' type and its values 'False' and 'True', as described in

Browse source 
PEP 285.  Everything described in the PEP is here, and there is even
some documentation.  I had to fix 12 unit tests; all but one of these
were printing Boolean outcomes that changed from 0/1 to False/True.
(The exception is test_unicode.py, which did a type(x) == type(y)
style comparison.  I could've fixed that with a single line using
issubtype(x, type(y)), but instead chose to be explicit about those
places where a bool is expected.

Still to do: perhaps more documentation; change standard library
modules to return False/True from predicates.
This commit is contained in:
Guido van Rossum 2002-04-03 22:41:51 +00:00
parent e9c0358bf4
commit 77f6a65eb0
29 changed files with 489 additions and 378 deletions
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134
Lib/test/test_unicode.py
View file

@ -167,34 +167,34 @@ test('replace', u'one!two!three!', u'one@two@three@', u'!', u'@')
test('replace', u'one!two!three!', u'one!two!three!', u'x', u'@')
test('replace', u'one!two!three!', u'one!two!three!', u'x', u'@', 2)
test('startswith', u'hello', 1, u'he')
test('startswith', u'hello', 1, u'hello')
test('startswith', u'hello', 0, u'hello world')
test('startswith', u'hello', 1, u'')
test('startswith', u'hello', 0, u'ello')
test('startswith', u'hello', 1, u'ello', 1)
test('startswith', u'hello', 1, u'o', 4)
test('startswith', u'hello', 0, u'o', 5)
test('startswith', u'hello', 1, u'', 5)
test('startswith', u'hello', 0, u'lo', 6)
test('startswith', u'helloworld', 1, u'lowo', 3)
test('startswith', u'helloworld', 1, u'lowo', 3, 7)
test('startswith', u'helloworld', 0, u'lowo', 3, 6)
test('startswith', u'hello', True, u'he')
test('startswith', u'hello', True, u'hello')
test('startswith', u'hello', False, u'hello world')
test('startswith', u'hello', True, u'')
test('startswith', u'hello', False, u'ello')
test('startswith', u'hello', True, u'ello', 1)
test('startswith', u'hello', True, u'o', 4)
test('startswith', u'hello', False, u'o', 5)
test('startswith', u'hello', True, u'', 5)
test('startswith', u'hello', False, u'lo', 6)
test('startswith', u'helloworld', True, u'lowo', 3)
test('startswith', u'helloworld', True, u'lowo', 3, 7)
test('startswith', u'helloworld', False, u'lowo', 3, 6)
test('endswith', u'hello', 1, u'lo')
test('endswith', u'hello', 0, u'he')
test('endswith', u'hello', 1, u'')
test('endswith', u'hello', 0, u'hello world')
test('endswith', u'helloworld', 0, u'worl')
test('endswith', u'helloworld', 1, u'worl', 3, 9)
test('endswith', u'helloworld', 1, u'world', 3, 12)
test('endswith', u'helloworld', 1, u'lowo', 1, 7)
test('endswith', u'helloworld', 1, u'lowo', 2, 7)
test('endswith', u'helloworld', 1, u'lowo', 3, 7)
test('endswith', u'helloworld', 0, u'lowo', 4, 7)
test('endswith', u'helloworld', 0, u'lowo', 3, 8)
test('endswith', u'ab', 0, u'ab', 0, 1)
test('endswith', u'ab', 0, u'ab', 0, 0)
test('endswith', u'hello', True, u'lo')
test('endswith', u'hello', False, u'he')
test('endswith', u'hello', True, u'')
test('endswith', u'hello', False, u'hello world')
test('endswith', u'helloworld', False, u'worl')
test('endswith', u'helloworld', True, u'worl', 3, 9)
test('endswith', u'helloworld', True, u'world', 3, 12)
test('endswith', u'helloworld', True, u'lowo', 1, 7)
test('endswith', u'helloworld', True, u'lowo', 2, 7)
test('endswith', u'helloworld', True, u'lowo', 3, 7)
test('endswith', u'helloworld', False, u'lowo', 4, 7)
test('endswith', u'helloworld', False, u'lowo', 3, 8)
test('endswith', u'ab', False, u'ab', 0, 1)
test('endswith', u'ab', False, u'ab', 0, 0)
test('expandtabs', u'abc\rab\tdef\ng\thi', u'abc\rab def\ng hi')
test('expandtabs', u'abc\rab\tdef\ng\thi', u'abc\rab def\ng hi', 8)
@ -286,50 +286,50 @@ test('ljust', u'abc', u'abc', 2)
test('rjust', u'abc', u'abc', 2)
test('center', u'abc', u'abc', 2)
test('islower', u'a', 1)
test('islower', u'A', 0)
test('islower', u'\n', 0)
test('islower', u'\u1FFc', 0)
test('islower', u'abc', 1)
test('islower', u'aBc', 0)
test('islower', u'abc\n', 1)
test('islower', u'a', True)
test('islower', u'A', False)
test('islower', u'\n', False)
test('islower', u'\u1FFc', False)
test('islower', u'abc', True)
test('islower', u'aBc', False)
test('islower', u'abc\n', True)
test('isupper', u'a', 0)
test('isupper', u'A', 1)
test('isupper', u'\n', 0)
test('isupper', u'a', False)
test('isupper', u'A', True)
test('isupper', u'\n', False)
if sys.platform[:4] != 'java':
test('isupper', u'\u1FFc', 0)
test('isupper', u'ABC', 1)
test('isupper', u'AbC', 0)
test('isupper', u'ABC\n', 1)
test('isupper', u'\u1FFc', False)
test('isupper', u'ABC', True)
test('isupper', u'AbC', False)
test('isupper', u'ABC\n', True)
test('istitle', u'a', 0)
test('istitle', u'A', 1)
test('istitle', u'\n', 0)
test('istitle', u'\u1FFc', 1)
test('istitle', u'A Titlecased Line', 1)
test('istitle', u'A\nTitlecased Line', 1)
test('istitle', u'A Titlecased, Line', 1)
test('istitle', u'Greek \u1FFcitlecases ...', 1)
test('istitle', u'Not a capitalized String', 0)
test('istitle', u'Not\ta Titlecase String', 0)
test('istitle', u'Not--a Titlecase String', 0)
test('istitle', u'a', False)
test('istitle', u'A', True)
test('istitle', u'\n', False)
test('istitle', u'\u1FFc', True)
test('istitle', u'A Titlecased Line', True)
test('istitle', u'A\nTitlecased Line', True)
test('istitle', u'A Titlecased, Line', True)
test('istitle', u'Greek \u1FFcitlecases ...', True)
test('istitle', u'Not a capitalized String', False)
test('istitle', u'Not\ta Titlecase String', False)
test('istitle', u'Not--a Titlecase String', False)
test('isalpha', u'a', 1)
test('isalpha', u'A', 1)
test('isalpha', u'\n', 0)
test('isalpha', u'\u1FFc', 1)
test('isalpha', u'abc', 1)
test('isalpha', u'aBc123', 0)
test('isalpha', u'abc\n', 0)
test('isalpha', u'a', True)
test('isalpha', u'A', True)
test('isalpha', u'\n', False)
test('isalpha', u'\u1FFc', True)
test('isalpha', u'abc', True)
test('isalpha', u'aBc123', False)
test('isalpha', u'abc\n', False)
test('isalnum', u'a', 1)
test('isalnum', u'A', 1)
test('isalnum', u'\n', 0)
test('isalnum', u'123abc456', 1)
test('isalnum', u'a1b3c', 1)
test('isalnum', u'aBc000 ', 0)
test('isalnum', u'abc\n', 0)
test('isalnum', u'a', True)
test('isalnum', u'A', True)
test('isalnum', u'\n', False)
test('isalnum', u'123abc456', True)
test('isalnum', u'a1b3c', True)
test('isalnum', u'aBc000 ', False)
test('isalnum', u'abc\n', False)
test('splitlines', u"abc\ndef\n\rghi", [u'abc', u'def', u'', u'ghi'])
test('splitlines', u"abc\ndef\n\r\nghi", [u'abc', u'def', u'', u'ghi'])
@ -337,7 +337,7 @@ test('splitlines', u"abc\ndef\r\nghi", [u'abc', u'def', u'ghi'])
test('splitlines', u"abc\ndef\r\nghi\n", [u'abc', u'def', u'ghi'])
test('splitlines', u"abc\ndef\r\nghi\n\r", [u'abc', u'def', u'ghi', u''])
test('splitlines', u"\nabc\ndef\r\nghi\n\r", [u'', u'abc', u'def', u'ghi', u''])
test('splitlines', u"\nabc\ndef\r\nghi\n\r", [u'\n', u'abc\n', u'def\r\n', u'ghi\n', u'\r'], 1)
test('splitlines', u"\nabc\ndef\r\nghi\n\r", [u'\n', u'abc\n', u'def\r\n', u'ghi\n', u'\r'], True)
test('translate', u"abababc", u'bbbc', {ord('a'):None})
test('translate', u"abababc", u'iiic', {ord('a'):None, ord('b'):ord('i')})