Squashing the Bug

Programming Foundations with Python >> Lessons >> Use Functions >> Squashing the Bug

Notes on Squashing the Bug

  1. At the end of the video, he mentions to include the code I show below in bold to further edit the code to include printing the old file_name and the new file_name. I found that after adding this code and running the program, instead of printing an old file_name and a new file_name, you see the new file_name printed twice for each file_name. I think this is because by running the program without this code first, we already changed each file_name within /prank. So the old file_name now IS the new file_name, because, well, we changed it.

IDE input:

     import os
def rename_files():
     #(1) get file names from a folder
     file_list = os.listdir(r"/Users/africansalami/Downloads/Udacity Full Stack/prank")
     saved_path = os.getcwd()
     print("Current working directory is "+saved_path)
     os.chdir(r"/Users/africansalami/Downloads/Udacity Full Stack/prank")
     #(2) for each file, rename filename
     for file_name in file_list:
          print("Old Name - "+file_name)
           print("New Name - "+file_name.translate(None, "0123456789"))
     os.rename(file_name, file_name.translate(None, "0123456789"))



SHELL Output

Old Name - .DS_Store
New Name - .DS_Store
Old Name - athens.jpg
New Name - athens.jpg
Old Name - austin.jpg
New Name - austin.jpg
Old Name - bangalore.jpg
New Name - bangalore.jpg
Old Name - barcelona.jpg
New Name - barcelona.jpg
Old Name - beijing.jpg
New Name - beijing.jpg

Author: ajoannaproject

Studying Udacity's Full Stack Web Developer program and passing on my improvements, hints, hacks, and updates to other students via ajoannaproject.wordpress.com.

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