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Created on 2010-09-17 00:21 by ipatrol, last changed 2022-04-11 14:57 by admin. This issue is now closed.
| Messages (6) | |||
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| msg116643 - (view) | Author: (ipatrol) | Date: 2010-09-17 00:21 | |
Just an easy patch. os.path.abspath is defined as os.path.normpath(os.path.join(os.getcwd(),path), but os.path.relpath also adds a start option. This creates an asymmetry where getting the absolute path from a relative path and a directory has no single operation whereas the inverse does. So finding the absolute path of 'foo' in the directory '/bar/buzz/bang/quok' requires several nested functions or else a quick dash in with os.chdir. Hence redefining os.path.abspath as os.path.normpath(os.path.join(start or os.getcwd(),path). |
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| msg116992 - (view) | Author: Éric Araujo (eric.araujo) *  |
Date: 2010-09-20 22:25 | |
Would you bring this up on python-ideas? I am neither +1 nor -1 on your idea, but I know that symmetry/consistency is not always a winning rationale. Not every possibly useful one-liner should be a standard function. |
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| msg124660 - (view) | Author: (ipatrol) | Date: 2010-12-26 02:32 | |
Yes, but this seems to be rational particularly for emulating directory changes without actually doing so. Since relative paths can use .. it may not always be straightforward to do this. Applications include archivers, dependency checkers, patch tools, self-extractors, installers, file managers, sync managers, D/VCS systems, loggers, and anti-malware programs. |
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| msg195469 - (view) | Author: Ezio Melotti (ezio.melotti) * |
Date: 2013-08-17 14:10 | |
Was this brought up on python-ideas? If so, what was the outcome? |
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| msg223900 - (view) | Author: Terry J. Reedy (terry.reedy) * |
Date: 2014-07-24 21:51 | |
Posted today on python-ideas with the mistaken title "os.path.argparse - optional startdir argument" by Wolfgang Maier (wolma). (He corrected in a second post, but too late.) Juancarlo Añez pointed to pathlib.Path.resolve as a better alternative. Path joins and resolve combines the functions of os.path.abspath and os.path.normpath with a nicer syntax, and with OS awareness.
>>> p.Path('../../../Python27/lib', 'ast.py').resolve()
WindowsPath('C:/Programs/Python27/Lib/ast.py')
If one starts with a base Path, one can use '/' to join.
>>> base = p.Path('.')
>>> (base / '../../../Python27/lib' / 'ast.py').resolve()
WindowsPath('C:/Programs/Python27/Lib/ast.py')
In light of the above, I agree with Serhiy that this issue should be closed unless there is a surge of approval for the proposal.
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| msg232295 - (view) | Author: Terry J. Reedy (terry.reedy) * |
Date: 2014-12-08 00:16 | |
https://mail.python.org/pipermail/python-ideas/2014-July/028382.html is the thread. No surge of support. |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:57:06 | admin | set | github: 54091 |
| 2014-12-08 00:16:43 | terry.reedy | set | status: open -> closed resolution: rejected messages: + msg232295 stage: resolved |
| 2014-07-24 21:51:35 | terry.reedy | set | status: pending -> open versions: + Python 3.5, - Python 3.2 nosy: + terry.reedy messages: + msg223900 |
| 2014-07-24 15:20:48 | serhiy.storchaka | set | status: open -> pending |
| 2014-07-24 14:20:02 | wolma | set | nosy:
+ wolma |
| 2013-08-17 14:10:23 | ezio.melotti | set | nosy:
+ ezio.melotti messages: + msg195469 |
| 2010-12-26 02:32:20 | ipatrol | set | messages: + msg124660 |
| 2010-09-20 22:25:35 | eric.araujo | set | nosy:
+ eric.araujo messages: + msg116992 |
| 2010-09-17 15:40:24 | eric.araujo | set | versions: - Python 2.7, Python 3.3 |
| 2010-09-17 00:21:48 | ipatrol | create | |