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Patch #825679: Clarify semantics of .isfoo on empty strings.

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Backported to 2.3.
This commit is contained in:
Martin v. Löwis 2003-10-18 09:55:08 +00:00
parent 849a972f35
commit 6828e18a6a
3 changed files with 31 additions and 27 deletions
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21
Objects/unicodeobject.c
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@ -4897,7 +4897,7 @@ unicode_islower(PyUnicodeObject *self)
PyDoc_STRVAR(isupper__doc__,
"S.isupper() -> bool\n\
\n\
Return True if all cased characters in S are uppercase and there is\n\
Return True if all cased characters in S are uppercase and there is\n\
at least one cased character in S, False otherwise.");
static PyObject*
@ -4931,9 +4931,10 @@ unicode_isupper(PyUnicodeObject *self)
PyDoc_STRVAR(istitle__doc__,
"S.istitle() -> bool\n\
\n\
Return True if S is a titlecased string, i.e. upper- and titlecase\n\
characters may only follow uncased characters and lowercase characters\n\
only cased ones. Return False otherwise.");
Return True if S is a titlecased string and there is at least one\n\
character in S, i.e. upper- and titlecase characters may only\n\
follow uncased characters and lowercase characters only cased ones.\n\
Return False otherwise.");
static PyObject*
unicode_istitle(PyUnicodeObject *self)
@ -4978,8 +4979,8 @@ unicode_istitle(PyUnicodeObject *self)
PyDoc_STRVAR(isspace__doc__,
"S.isspace() -> bool\n\
\n\
Return True if there are only whitespace characters in S,\n\
False otherwise.");
Return True if all characters in S are whitespace\n\
and there is at least one character in S, False otherwise.");
static PyObject*
unicode_isspace(PyUnicodeObject *self)
@ -5007,7 +5008,7 @@ unicode_isspace(PyUnicodeObject *self)
PyDoc_STRVAR(isalpha__doc__,
"S.isalpha() -> bool\n\
\n\
Return True if all characters in S are alphabetic\n\
Return True if all characters in S are alphabetic\n\
and there is at least one character in S, False otherwise.");
static PyObject*
@ -5036,7 +5037,7 @@ unicode_isalpha(PyUnicodeObject *self)
PyDoc_STRVAR(isalnum__doc__,
"S.isalnum() -> bool\n\
\n\
Return True if all characters in S are alphanumeric\n\
Return True if all characters in S are alphanumeric\n\
and there is at least one character in S, False otherwise.");
static PyObject*
@ -5094,8 +5095,8 @@ unicode_isdecimal(PyUnicodeObject *self)
PyDoc_STRVAR(isdigit__doc__,
"S.isdigit() -> bool\n\
\n\
Return True if there are only digit characters in S,\n\
False otherwise.");
Return True if all characters in S are digits\n\
and there is at least one character in S, False otherwise.");
static PyObject*
unicode_isdigit(PyUnicodeObject *self)