How to Find the Week Number of a Date in Python?

Finding Week Number in Python

In Python, the datetime module provides a convenient method to retrieve the week number of a given date. Here's how to use it to find the week number of June 16th in the current year:

<code class="python">import datetime

# Instantiate a date object for June 16th
date = datetime.date(datetime.now().year, 6, 16)

# Get the year, week number, and weekday using the isocalendar() method
year, week, weekday = date.isocalendar()

# Print the week number
print(f"Week number: {week}")</code>

The output of this code will be the week number corresponding to June 16th in the current year.

Explanation:

• The isocalendar() method of the datetime.date object returns a tuple of three values: the year, the week number, and the weekday. The week number is calculated according to the ISO 8601 standard, where the week starts on Monday and ends on Sunday.
• In Python versions 3.9 and above, the isocalendar() method returns a namedtuple instead of a tuple. The namedtuple attributes are year, week, and weekday. You can access the week number explicitly using the week attribute.

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