Python: Display a list of the dates for the 2nd Saturday of every month for a given year

Last update on May 28 2022 13:35:00 (UTC/GMT +8 hours)

Python Datetime: Exercise-47 with Solution

Write a Python program display a list of the dates for the 2nd Saturday of every month for a given year.

Sample Solution:

Python Code:

import calendar
# Show every month
for month in range(1, 13):
    cal = calendar.monthcalendar(2020, month)
    first_week  = cal[0]
    second_week = cal[1]
    third_week  = cal[2]

    # If a Saturday presents in the first week, the second Saturday
    # is in the second week.  Otherwise, the second Saturday must 
    # be in the third week.
    
    if first_week[calendar.SATURDAY]:
        holi_day = second_week[calendar.SATURDAY]
    else:
        holi_day = third_week[calendar.SATURDAY]

    print('%3s: %2s' % (calendar.month_abbr[month], holi_day))

Sample Output:

Jan: 11
Feb:  8
Mar: 14
Apr: 11
May:  9
Jun: 13
Jul: 11
Aug:  8
Sep: 12
Oct: 10
Nov: 14
Dec: 12

Flowchart:

Python Code Editor:

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Python: Tips of the Day

Find current directory and file's directory:

To get the full path to the directory a Python file is contained in, write this in that file:

import os 
dir_path = os.path.dirname(os.path.realpath(__file__))

(Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the __file__ constant is relative to the current working directory and is not changed by an os.chdir() call.)

To get the current working directory use

import os
cwd = os.getcwd()

Documentation references for the modules, constants and functions used above:

The os and os.path modules.
The __file__ constant
os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
os.path.dirname(path) (returns "the directory name of pathname path")
os.getcwd() (returns "a string representing the current working directory")
os.chdir(path) ("change the current working directory to path")

Ref: https://bit.ly/3fy0R6m