New submission from Hans Lawrenz:
Inside a virtualbox vm, calling tempfile.TemporaryFile(dir=foo) where foo is a
directory which resides on a volume mounted from the host OS, a
FileNotFoundError exception is thrown.
In the following code sample, the second block will print "Path 2: ERROR" on
Python 3.5 but not on 3.4 or 2.7 (assuming the vagrant environment provided
below):
import tempfile
try:
with tempfile.TemporaryFile() as tf:
tf.write("testing testing testing\n".encode('utf-8'))
print("Path 1: worked")
except FileNotFoundError as e:
print("Path 1: ERROR")
try:
with tempfile.TemporaryFile(dir="/vagrant") as tf:
tf.write("testing testing testing\n".encode('utf-8'))
print("Path 2: worked")
except FileNotFoundError as e:
print("Path 2: ERROR")
A runnable test case can be found here:
https://github.com/hlawrenz/py35tempfiletest
----------
components: Library (Lib)
messages: 255246
nosy: Hans Lawrenz
priority: normal
severity: normal
status: open
title: tempfile.TemporaryFile fails when dir option set to directory residing
on host OS mount
type: behavior
versions: Python 3.5
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue25717>
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