Check Trading Holidays using exchange_calendars in python

How to check stock market trading holidays using the exchange_calendars library in Python.

March 3, 2026

Check Trading Holidays using exchange_calendars in python

When dealing with automated stock trading systems or financial data, checking whether the market is open is very important.
exchange_calendars library allows you to easily manage the holidays of major exchanges worldwide, including the Korea Exchange (KRX).

1. Install Library

First, you need to install the necessary libraries.


Install command
bash

2. Check KRX Trading Holiday

This is code to retrieve the calendar for the Korea Exchange (XKRX) and check if today is a session (business day).


Trading Holiday Check Script
python

3. Key Concepts

XKRX: This is the ISO code for the Korea Exchange. The US uses XNYS (New York Stock Exchange), XNAS (NASDAQ), etc.
is_session(): Returns a Boolean value indicating whether a specific date is a trading day (open day). It includes both weekends and holidays.

4. More Tips

If you want to get a list of all holidays within a specific period, you can automate scheduling using the holidays_at attribute or the sessions_in_range method.

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