Python: Check whether a given month and year contains a Monday 13^th

Python Basic - 1: Exercise-130 with Solution

Check Monday 13th

Write a Python program to check whether a given month and year contains a Monday 13^th.

Sample Solution-1:

Python Code:

# Import the 'date' class from the 'datetime' module.
from datetime import date

# Define a function 'test' that checks if the 13th day of a given month and year is a Monday.
def test(month, year): 
    # Create a date object for the 13th day of the given month and year.
    # Use the 'strftime' method to get the day of the week (e.g., 'Monday').
    is_monday_13th = date(year, month, 13).strftime("%A") == 'Monday'
    
    # Convert the result to a string and return it.
    return str(is_monday_13th)

# Provide values for the first test case (month=11, year=2022).
month = 11
year = 2022

# Print information about the first test case.
print("Month No.: ", month, " Year: ", year)
# Print the result of checking whether the 13th day of the given month and year is a Monday using the 'test' function.
print("Check whether the said month and year contain a Monday 13th.: " + test(month, year))

# Provide values for the second test case (month=6, year=2022).
month = 6
year = 2022

# Print information about the second test case.
print("\nMonth No.: ", month, " Year: ", year)
# Print the result of checking whether the 13th day of the given month and year is a Monday using the 'test' function.
print("Check whether the said month and year contain a Monday 13th.: " + test(month, year))

Sample Output:

Month No.:  11  Year:  2022
Check whether the said month and year contains a Monday 13th.: False

Month No.:  6  Year:  2022
Check whether the said month and year contains a Monday 13th.: True

Explanation:

Here is a breakdown of the above Python code:

• Import Module:
• Import the 'date' class from the 'datetime' module.
• Define Test Function (test function):
• The "test()" function is defined to check if the 13th day of a given month and year is a Monday.
• It creates a date object for the 13th day of the given month and year and uses "strftime" to get the day of the week.
• The result is compared to 'Monday', and the boolean result is converted to a string.

Flowchart:

Sample Solution-2:

Python Code:

# Import the 'calendar' module to work with calendar-related functions.
import calendar

# Define a function 'test' that checks if the 13th day of a given month and year is a Monday.
def test(month, year): 
    # Use the 'calendar.weekday' function to get the day of the week (0 for Monday) for the 13th day of the given month and year.
    is_monday_13th = calendar.weekday(year, month, 13) == 0
    
    # Convert the result to a string and return it.
    return str(is_monday_13th)

# Provide values for the first test case (month=11, year=2022).
month = 11
year = 2022

# Print information about the first test case.
print("Month No.: ", month, " Year: ", year)
# Print the result of checking whether the 13th day of the given month and year is a Monday using the 'test' function.
print("Check whether the said month and year contain a Monday 13th.: " + test(month, year))

# Provide values for the second test case (month=6, year=2022).
month = 6
year = 2022

# Print information about the second test case.
print("\nMonth No.: ", month, " Year: ", year)
# Print the result of checking whether the 13th day of the given month and year is a Monday using the 'test' function.
print("Check whether the said month and year contain a Monday 13th.: " + test(month, year))

Sample Output:

Month No.:  11  Year:  2022
Check whether the said month and year contains a Monday 13th.: False

Month No.:  6  Year:  2022
Check whether the said month and year contains a Monday 13th.: True

Explanation:

Here is a breakdown of the above Python code:

• Import Module:
• Import the 'calendar' module to work with calendar-related functions.
• Define Test Function (test function):
• The "test()" function is defined to check if the 13th day of a given month and year is a Monday.
• It uses the 'calendar.weekday' function to get the day of the week (0 for Monday) for the 13th day of the given month and year.
• The result is compared to 0 (Monday), and the boolean result is converted to a string.

Flowchart:

Python Code Editor:

Have another way to solve this solution? Contribute your code (and comments) through Disqus.

Previous: Write a Python program to get the index number of all lower case letters in a given string.
Next: Write a Python program to count number of zeros and ones in the binary representation of a given integer.