How to rename a file using Python

Question

I want to change a txt to b kml

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import os import re from pathlib import Path  for f in os listdir training data dir2     for file in os listdir  training data dir2         f       oldfile  Path training data dir2         f         file      newfile   Path training data dir2         f         file 49        p oldfile     p rename newfile

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import shutil  shutil move  a txt    b kml     This will work to rename or move a file

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As of Python 3 4 one can use the pathlib module to solve this   If you happen to be on an older version  you can use the backported version found here  Let s assume you are not in the root path  just to add a bit of difficulty to it  you want to rename  and have to provide a full path  we can look at this    some path    a b c the file extension    So  you can take your path and create a Path object out of it   from pathlib import Path p   Path some path    Just to provide some information around this object we have now  we can extract things out of it  For example  if for whatever reason we want to rename the file by modifying the filename from the file to the file 1  then we can get the filename part   name without extension   p stem   And still hold the extension in hand as well    ext   p suffix   We can perform our modification with a simple string manipulation   Python 3 6 and greater make use of f-strings   new file name   f  name without extension  1    Otherwise   new file name           format name without extension  1    And now we can perform our rename by calling the rename method on the path object we created and appending the ext to complete the proper rename structure we want   p rename Path p parent  new file name   ext     More shortly to showcase its simplicity    Python 3 6    from pathlib import Path p   Path some path  p rename Path p parent  f  p stem  1  p suffix       Versions less than Python 3 6 use the string format method instead   from pathlib import Path p   Path some path  p rename Path p parent             format p stem  1  p suffix

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You can use os system to invoke terminal to accomplish the task   os system  mv oldfile newfile

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File may be inside a directory  in that case specify the path   import os old file   os path join  directory    a txt   new file   os path join  directory    b kml   os rename old file  new file

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One important point to note here  we should check if any files exists with the new filename  suppose if b kml file exists then renaming other file with the same filename leads to deletion of existing b kml  import os  if not os path exists  b kml       os rename  a txt   b kml

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import shutil import os  files   os listdir    pics      for key in range 0  len files       print files key     shutil move    pics     files key     pics img    str key      jpeg     This should do it  python 3

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Use os rename  But you have to pass full path of both files to the function  If I have a file a txt on my desktop so I will do and also I have to give full of renamed file too  os rename  C   Users  Desktop  a txt    C   Users  Desktop  b kml

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Using the Pathlib library s Path rename instead of os rename  import pathlib  original path   pathlib Path  a txt   new path   original path rename  b kml

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Use os rename   import os  os rename  a txt    b kml

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os rename old  new   This is found in the Python docs  http   docs python org library os html

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import os    Set the path path    a  b  c      save current working directory saved cwd   os getcwd     change your cwd to the directory which contains files os chdir path  os rename  a txt    b klm     moving back to the directory you were in  os chdir saved cwd

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If you are Using Windows and you want to rename your 1000s of files in a folder then  You can use the below code   Python3  import os  path   os chdir input  quot Enter the path of the Your Image Folder     quot     Here put the path of your folder where your images are stored  image name   input  quot Enter your Image name    quot    Here  enter the name you want your images to have  i   0  for file in os listdir path        new file name   image name  quot   quot    str i     quot  jpg quot   here you can change the extention of your renmamed file      os rename file new file name       i   i   1  input  quot Renamed all Images   quot

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os chdir r quot D  Folder1 Folder2 quot   os rename src dst    src and dst should be inside Folder2

[python] How to rename a file using Python

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