Replace Entire Line In A Text File Based On Search Using Python

I'm trying to replace a string which will be in the form of path='/users/username/folder' in a text file. I'm reading that text file and searching the line which starts from 'path

Solution 1:

You can use regular expression.

import re
with open("filename","r+") as f:
    text = f.read()
    modified_text, modified = re.subn(r'(?:^|(?<=\n))path\s\=.*',CurrentFilePath, text)
    if  modified:
        print ("Success!!!!")
    else:
        print ("Failure :(")
    f.seek(0)  
    f.write(modified_text)  
    f.truncate()