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I have some folders in C:\Users\Documents\Datas, whose names are A, B, C.

  • Inside folder A: RE_20.csv ; RE_23.csv ; RE_25.csv
  • Inside folder B: DF_41.csv ; DF_46.csv ; RE_47.csv
  • Inside folder C: VN_81.csv ; VN_82.csv ; VN_89.csv

I want to replace just a part of .csv files with the name of its folder correspondent. I want to get:

  • Inside folder A: A_20.csv ; A_23.csv ; A_25.csv
  • Inside folder B: B_41.csv ; B_46.csv ; B_47.csv
  • Inside folder C: C_81.csv ; C_82.csv ; C_89.csv
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1 Answer 1

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The pathlib library was born for this sort of path manipulation.

Try this:

from pathlib import Path import re paths=Path('C:\\Users\\Documents\\Datas').glob('*/*.csv') for path in paths: new_path = path.parent/re.sub('.+_',path.parent.name+'_',path.name) print(path,'->',new_path) path.replace(new_path)
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