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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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25
Objects/stringobject.c
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@ -2733,10 +2733,10 @@ string_zfill(PyStringObject *self, PyObject *args)
}
PyDoc_STRVAR(isspace__doc__,
"S.isspace() -> bool\n"
"\n"
"Return True if there are only whitespace characters in S,\n"
"False otherwise.");
"S.isspace() -> bool\n\
\n\
Return True if all characters in S are whitespace\n\
and there is at least one character in S, False otherwise.");
static PyObject*
string_isspace(PyStringObject *self)
@ -2766,7 +2766,7 @@ string_isspace(PyStringObject *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*
@ -2797,7 +2797,7 @@ string_isalpha(PyStringObject *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*
@ -2828,8 +2828,8 @@ string_isalnum(PyStringObject *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*
string_isdigit(PyStringObject *self)
@ -2893,7 +2893,7 @@ string_islower(PyStringObject *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*
@ -2927,9 +2927,10 @@ string_isupper(PyStringObject *self)
PyDoc_STRVAR(istitle__doc__,
"S.istitle() -> bool\n\
\n\
Return True if S is a titlecased string, i.e. uppercase characters\n\
may only follow uncased characters and lowercase characters only cased\n\
ones. Return False otherwise.");
Return True if S is a titlecased string and there is at least one\n\
character in S, i.e. uppercase characters may only follow uncased\n\
characters and lowercase characters only cased ones. Return False\n\
otherwise.");
static PyObject*
string_istitle(PyStringObject *self, PyObject *uncased)