The document provides instructions on handling CSV files in Python, detailing how to read and write data using csvreader. It includes tasks related to storing and printing data about medals won by countries, recording rainfall for cities, and managing employee data. Additionally, it contains exercises that focus on inserting records and calculating statistics like total salary and minimum marks.

1. FILE HANDLING
Class 12_CSc
How to iterate through a CSV file in Python?
• csvreader is an iterable object. Hence, .next () method
returns the current row and advances the iterator to the next row.
• Since the first row of our csv file contains the headers (or field
names), we save them in a list called fields. Now, we iterate through
remaining rows using a for loop. Each row is appended to a list
called rows.

2. FILE HANDLING
Class 12_CSc
1.Store the Country name, gold, silver and bronze medals won by 5
different countries in Asianic Games using CSV file. Read the file and
print the content in the alphabetical order of country names in a neat
format

3. FILE HANDLING
Class 12_CSc

4. FILE HANDLING
Class 12_CSc
Write a function Create_csv() to store the city_name and rainfall
during a month of 5 cities in “rainfall.csv” and another function
Max_rainfall() to read the file and print the name of the city that
received the highest rainfall.

5. FILE HANDLING
Class 12_CSc

6. FILE HANDLING
Class 12_CSc

7. FILE HANDLING
Class 12_CSc
Q1.Write a python program to write the following into a csv file
named employee.csv with comma as delimiter and read it as a list.Also
find the total salary. Structure of the record is
employeeno,name,mobileno,salary and commission
Q2. Write a program to add/insert records in file “data.csv”. Structure of
a record is roll number, name , class and marks. Find the minimum
marks