Python: Count the number of students of individual class

Last update on March 28 2025 12:56:00 (UTC/GMT +8 hours)

33. Count the Number of Students in an Individual Class

Write a Python program to count the number of students in an individual class.

Sample Solution:

Python Code:

# Import the Counter class from the collections module
from collections import Counter

# Create a tuple 'classes' containing class names and the number of students in each class
classes = (
    ('V', 1),
    ('VI', 1),
    ('V', 2),
    ('VI', 2),
    ('VI', 3),
    ('VII', 1),
)

# Create a Counter object 'students' to count the occurrences of class names in 'classes'
students = Counter(class_name for class_name, no_students in classes)

# Print the 'students' Counter object, which represents the count of students in each class
print(students) 

Sample Output:

Counter({'VI': 3, 'V': 2, 'VII': 1})

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Python program to use collections.Counter to count the frequency of class names from a list of student records.
• Write a Python program to iterate over a dictionary of student classes and output the count of students per class.
• Write a Python program to implement a function that takes a list of class identifiers and returns the count of students in each class.
• Write a Python program to use dictionary comprehension to build a frequency dictionary for classes from a tuple-of-tuples.

Python Code Editor:

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