Simple script to rewrite and wrap text files at 80 chars. Great for `.txt` files and `.md` files.

80_chars.py

#!/usr/bin/env python                                                            
                                                                                 
import sys                                                                       
import textwrap                                                                  
                                                                                 
WIDTH = 79                                                                       
                                                                                 
                                                                                 
def main(argv):                                                                  
    if len(argv) != 2:                                                           
        sys.exit("Error, please pass a single file name you wish to wrap")       
                                                                                 
    new_name = "80_" + argv[1]                                                   
                                                                                 
    with open(argv[1]) as orig:                                                  
        with open(new_name, "w") as new:                                         
            for line in orig:                                                    
                if line == "\n":                                                 
                    new.write("\n")                                              
                else:                                                            
                    new_text = textwrap.fill(line, width=WIDTH)                  
                    if line.endswith("\n") and not new_text.endswith("\n"):      
                        new_text += "\n"                                         
                                                                                 
                    new.write(new_text)                                          
                                                                                 
                                                                                 
if __name__ == '__main__':                                                       
    main(sys.argv)

Nice! 😸