tree 41adffd0bafe34bcfa52f4f8f09b088fc7c3e38f
parent df9eff061e67ead5af3433c34b5f58451bc201a0
author Raymond Hettinger <python@rcn.com> 1056701657 +0000
committer Raymond Hettinger <python@rcn.com> 1056701657 +0000
HG:extra convert_revision:svn%3A6015fed2-1504-0410-9fe1-9d1591cc4771/python/branches/legacy-trunk%4033264

SF bug #761337: datetime.strftime fails on trivial format string

The interning of short strings violates the refcnt==1 assumption for
_PyString_Resize().

A simple fix is to boost the initial value of "totalnew" by 1.
Combined with an NULL argument to PyString_FromStringAndSize(),
this assures that resulting format string is not interned.
This will remain true even if the implementation of
PyString_FromStringAndSize() changes because only the uninitialized
strings that can be interned are those of zero length.

Added a test case.