[Type B] File Handling – Chapter 5 Sumita Arora
Table of Contents
7. Consider the file “contacts.csv” created in above Q. and figure out what the following code is trying to do?
Python
name = input("Enter name :")
file = open("contacts.csv", "r")
for line in file:
if name in line:
print (line)Answer: The code prompts the user for a name, opens the “contacts.csv” file in read mode ("r"), iterates through each line, and prints any line containing the entered name.
Explanation:
- Prompts the user to enter a name and stores it in the
namevariable. - Opens the “contacts.csv” file in read mode (
"r"). - Iterates through each line in the file using a
forloop. - Inside the loop, it checks if the entered
nameis present anywhere within the current line using theinoperator. - If the name is found in the line, the entire line is printed.
- The loop continues, checking each line in the file.
Step-by-step Explanation:
The given code snippet searches the contacts.csv file for a specific name provided by the user through the input prompt and then prints the corresponding line if the name is found in the file. Here’s a step-by-step explanation of the code:
name = input("Enter name :")– This line prompts the user to enter a name and assigns the input value to the variablename.file = open("contacts.csv", "r")– This line opens thecontacts.csvfile in read mode (“r”) to read its contents.for line in file:– This line starts a loop that iterates through each line in thecontacts.csvfile.if name in line:– This line checks if the entered name is present in the current line. Since the file is in CSV format, it searches for the name within each line, which contains a name and a phone number separated by a comma (,).
Good work posting these questions in detail!