New submission from Zhiming Wang:
Consider
import fileinput
import pathlib
with fileinput.input(files=(pathlib.Path('in.txt'),), inplace=True) as fp:
for line in fp:
print(line, end='')
which results in
Traceback (most recent call last):
File "./pathlib-fileinput.py", line 6, in <module>
for line in fp:
File "/Users/zmwang/.pyenv/versions/3.6.1/lib/python3.6/fileinput.py",
line 250, in __next__
line = self._readline()
File "/Users/zmwang/.pyenv/versions/3.6.1/lib/python3.6/fileinput.py",
line 331, in _readline
self._filename + (self._backup or ".bak"))
TypeError: unsupported operand type(s) for +: 'PosixPath' and 'str'
A trivial fix is converting the specified filename to str when assigning to
self._filename:
- self._filename = self._files[0]
+ self._filename = str(self._files[0])
----------
components: Library (Lib)
messages: 300860
nosy: zmwangx
priority: normal
severity: normal
status: open
title: fileinput inplace does not work with pathlib.Path
type: behavior
versions: Python 3.4, Python 3.5, Python 3.6, Python 3.7
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue31281>
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