Play with Text Files : using Python by Koduri Bhargav

Author:Koduri Bhargav [Bhargav, Koduri]
Language: eng
Format: azw3, epub
Published: 2021-06-22T00:00:00+00:00

A file old.txt can be renamed to new.txt, using the function os.rename(). The name of the file changes only if, the file exists and the user has sufficient privilege permission to change the file.

2.7 Modify a Record

2.6.1 Copy the line that you want to modify

f = open("pd.txt", "r")

nf=open("newfile.txt","a")

s=input("Enter name to modify: ")

for line in f:

if s not in line :

nf.write(line)

else:

phNum= input("Enter the phone numer: ")

res=" "+s+" "+phNum+"
"

nf.write(res)

f.close()

nf.close()

2.6.2 Delete the original textfile

import os

os.remove("pd.txt")

2.6.3 Rename the new text file with the original text file

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