Sentry Answers>Python>

Pandas DataFrame row count in Python

Pandas DataFrame row count in Python

David Y.

The ProblemJump To Solution

How can I get the number of rows of a Pandas DataFrame in Python?

The Solution

We can do this in one of two main ways:

  1. Using Python’s built-in len() function:
    Click to Copy
    row_count = len(my_dataframe)
  2. Using the DataFrame.shape property, which contains a tuple of the row and column count:
    Click to Copy
    row_count = my_dataframe.shape[0]

The len() function is usually the faster of the two solutions, but shape may be useful in circumstances where we also need the column count.

  • Sentry BlogPython Performance Testing: A Comprehensive Guide
  • Sentry BlogLogging in Python: A Developer’s Guide
  • Syntax.fm logo
    Listen to the Syntax Podcast

    Tasty Treats for Web Developers brought to you by Sentry. Web development tips and tricks hosted by Wes Bos and Scott Tolinski

    Listen to Syntax

Loved by over 4 million developers and more than 90,000 organizations worldwide, Sentry provides code-level observability to many of the world’s best-known companies like Disney, Peloton, Cloudflare, Eventbrite, Slack, Supercell, and Rockstar Games. Each month we process billions of exceptions from the most popular products on the internet.

© 2024 • Sentry is a registered Trademark
of Functional Software, Inc.