Python: Select all the Sundays of a specified year
Python Datetime: Exercise-15 with Solution
Write a Python program to select all the Sundays of a specified year.
Sample Solution:
Python Code:
from datetime import date, timedelta
def all_sundays(year):
# January 1st of the given year
dt = date(year, 1, 1)
# First Sunday of the given year
dt += timedelta(days = 6 - dt.weekday())
while dt.year == year:
yield dt
dt += timedelta(days = 7)
for s in all_sundays(2020):
print(s)
Sample Output:
2020-01-05 2020-01-12 2020-01-19 2020-01-26 2020-02-02 ----- 2020-12-06 2020-12-13 2020-12-20 2020-12-27
Flowchart:
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Previous: Write a Python program to find the date of the first Monday of a given week.
Next: Write a program to add year(s) with a given date and display the new date.
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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
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