| """ |
| The temp module provides a NamedTemporaryFile that can be re-opened on any |
| platform. Most platforms use the standard Python tempfile.TemporaryFile class, |
| but MS Windows users are given a custom class. |
| |
| This is needed because in Windows NT, the default implementation of |
| NamedTemporaryFile uses the O_TEMPORARY flag, and thus cannot be reopened [1]. |
| |
| 1: http://mail.python.org/pipermail/python-list/2005-December/359474.html |
| """ |
| |
| import os |
| import tempfile |
| from django.core.files.utils import FileProxyMixin |
| |
| __all__ = ('NamedTemporaryFile', 'gettempdir',) |
| |
| if os.name == 'nt': |
| class TemporaryFile(FileProxyMixin): |
| """ |
| Temporary file object constructor that works in Windows and supports |
| reopening of the temporary file in windows. |
| """ |
| def __init__(self, mode='w+b', bufsize=-1, suffix='', prefix='', |
| dir=None): |
| fd, name = tempfile.mkstemp(suffix=suffix, prefix=prefix, |
| dir=dir) |
| self.name = name |
| self.file = os.fdopen(fd, mode, bufsize) |
| self.close_called = False |
| |
| # Because close can be called during shutdown |
| # we need to cache os.unlink and access it |
| # as self.unlink only |
| unlink = os.unlink |
| |
| def close(self): |
| if not self.close_called: |
| self.close_called = True |
| try: |
| self.file.close() |
| except (OSError, IOError): |
| pass |
| try: |
| self.unlink(self.name) |
| except (OSError): |
| pass |
| |
| def __del__(self): |
| self.close() |
| |
| NamedTemporaryFile = TemporaryFile |
| else: |
| NamedTemporaryFile = tempfile.NamedTemporaryFile |
| |
| gettempdir = tempfile.gettempdir |
