The document discusses various string and file handling methods in Python including strip(), rstrip(), and lstrip() which remove characters from the ends of strings. It also covers appending to a file, which allows adding new data to a file while retaining existing contents. Finally, it provides examples of programs - one to get student roll numbers, names, and marks from the user, and another that adds details for two additional students to the first program.

1. GVK CHINMAYA VIDYALAYA
SENIOR SECONDARY SCHOOL
Kothuru, Indukurupet, SPS Nellore
FileHandling
Class: 12 Subject: Python Teacher: C Vijaya
strip()
rstrip()
lstrip()

2. Strip:
The Strip() removes the given character from both the ends.

3. rstrip:
The rstrip() removes the given character from trailing end i.e., right end.

4. lstrip():
The lstrip() removes the given character from the leading end (left end).

5. Appending a File:
A file opened in append mode retains its previous data while allowing you to
add newer data into.

6. WAP to get rollno, names and marks of the student from the user

7. WAP to add 2 more student details to previous program