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+--- Thread: a challenging project idea (/thread-17203.html)
a challenging project idea - Skaperen - Apr-02-2019
this is not a joke. it is currently in perl. the "rename" command that i use in linux, although making it work in windows is ok.
RE: a challenging project idea - nilamo - Apr-02-2019
https://docs.python.org/3/library/pathlib.html#pathlib.Path.rename
import pathlib
def rename(fname, to):
pathlib.Path(fname).rename(to)
if __name__ == "__main__":
import sys
if len(sys.argv) >= 3:
fname, to = sys.argv[1:3]
rename(fname, to)
else:
print("rename.py: [from] [to]")
RE: a challenging project idea - Skaperen - Apr-03-2019
it does not seem to work as a rename command:
Output:lt2a/forums /home/forums 1> box rename.py
+---<rename.py>---------------------------+
| import pathlib |
| |
| def rename(fname, to): |
| pathlib.Path(fname).rename(to) |
| |
| if __name__ == "__main__": |
| import sys |
| if len(sys.argv) >= 3: |
| fname, to = sys.argv[1:3] |
| rename(fname, to) |
| else: |
| print("rename.py: [from] [to]") |
+-----------------------------------------+
lt2a/forums /home/forums 2> ls -dl foo food
/bin/ls: cannot access 'foo': No such file or directory
/bin/ls: cannot access 'food': No such file or directory
lt2a/forums /home/forums 3> touch foo
lt2a/forums /home/forums 4> ls -dl foo food
/bin/ls: cannot access 'food': No such file or directory
-rw-r--r-- 1 forums forums 0 Apr 2 23:25 foo
lt2a/forums /home/forums 5> py3 rename.py 's/foo/food' foo
Traceback (most recent call last):
File "rename.py", line 10, in <module>
rename(fname, to)
File "rename.py", line 4, in rename
pathlib.Path(fname).rename(to)
File "/usr/lib/python3.5/pathlib.py", line 1279, in rename
self._accessor.rename(self, target)
File "/usr/lib/python3.5/pathlib.py", line 377, in wrapped
return strfunc(str(pathobjA), str(pathobjB), *args)
FileNotFoundError: [Errno 2] No such file or directory: 's/foo/food' -> 'foo'
lt2a/forums /home/forums 6>RE: a challenging project idea - nilamo - Apr-03-2019
https://linux.die.net/man/1/rename
So it's more complicated than just an alias for
mv. I didn't realize it was basically sed but for file names.
RE: a challenging project idea - Skaperen - Apr-04-2019
that's what makes it challenging. the implementation in Ubuntu is in Perl. i figured if Python had PCRE support, then it might be doable.