[issue18879] tempfile.NamedTemporaryFile can close the file too early, if not assigning to a variable

[Meador Inge]

Meador Inge added the comment:

Confirmed in trunk:

>>> tempfile.NamedTemporaryFile(dir=".",delete=False).write(b"hello")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ValueError: write to closed file

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nosy: +meador.inge

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue18879>
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