[issue43165] Support the same files with new param in shutil.copyfile

[Milan Balazs]

Milan Balazs  added the comment:

Could you somebody review the PR for this ticket, please?

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[issue43165] Support the same files with new param in shutil.copyfile

[Milan Balazs]

Milan Balazs  added the comment:

Sure, you can use try/except but it would be nice if the "shutil.copyfile" 
function supports the same files.

If I have many files (more thousand), I don't want to check them with a 
try/except.

Furthermore if I want to cover the unexpected exceptions as well I need to use 
nested try/except (I guess it's not the most elegant way).

Eg.:

try:
shutil.copyfile("test.txt", "test.txt")
except SameFileError:
pass
except Exception as unexpected_exception:
raise unexpected_exception

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[issue43165] Support the same files with new param in shutil.copyfile

[Milan Balazs]

Change by Milan Balazs :


--
keywords: +patch
pull_requests: +23274
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/24482

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[issue43165] Support the same files with new param in shutil.copyfile

[Milan Balazs]

New submission from Milan Balazs :

The "shutil.copyfile" raises a "SameFileError" exception if the src and dts 
files are the same.

There is no option to allow the same files(like in case of 
shutil.copytree(dirs_exist_ok=False)).

For example:

import shutil

shutil.copyfile("test.txt", "test.txt")

Output:

>>> python3 test.py 
Traceback (most recent call last):
  File "test.py", line 3, in 
shutil.copyfile("test.txt", "test.txt")
  File "/usr/lib/python3.6/shutil.py", line 104, in copyfile
raise SameFileError("{!r} and {!r} are the same file".format(src, dst))
shutil.SameFileError: 'test.txt' and 'test.txt' are the same file

--
components: Library (Lib)
messages: 386634
nosy: milanbalazs
priority: normal
severity: normal
status: open
title: Support the same files with new param in shutil.copyfile
type: enhancement
versions: Python 3.10

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