New submission from Richard Xia:
Here is a very short program to demonstrate what I'm seeing:
>>> import tempfile
>>> import os
>>> with tempfile.NamedTemporaryFile(delete=True) as fp:
... print(fp.name)
... os.system('rm {}'.format(fp.name))
/tmp/tmpomw0udc6
0
Traceback (most recent call last):
File "<stdin>", line 3, in <module>
File "/usr/local/lib/python3.6/tempfile.py", line 502, in __exit__
self.close()
File "/usr/local/lib/python3.6/tempfile.py", line 509, in close
self._closer.close()
File "/usr/local/lib/python3.6/tempfile.py", line 446, in close
unlink(self.name)
FileNotFoundError: [Errno 2] No such file or directory: '/tmp/tmpomw0udc6'
In my specific use case, I am shelling out to another program (binutils'
objcopy) and passing the path of the NamedTemporaryFile as the output file.
objcopy apparently deletes the output file if it encounters an error, which
causes NamedTemporaryFile's exit method to fail when it tries to delete the
file.
While I can work around this by using delete=False and manually doing the
cleanup on my own, it's less elegant than being able to rely on the normal
context manager exit.
----------
components: IO
messages: 287888
nosy: richardxia
priority: normal
severity: normal
status: open
title: NamedTemporaryFile with delete=True should not fail if file already
deleted
type: behavior
versions: Python 3.5, Python 3.6
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Python tracker <[email protected]>
<http://bugs.python.org/issue29573>
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