Three-day international community conference for data scientists, data engineers, and developers of data analysis tools, held at Convene Sancroft near St. Paul's in London from June 5-7 2026 (last edition, held). As of 31 October 2026, the organiser had not announced the next edition. Day 1 was dedicated to tutorials; Days 2-3 featured talks, lightning talks, and community networking.
PyData London is the European flagship conference of the global PyData network, a community initiative under NumFOCUS. The event brings together practitioners who use, develop, and contribute to open-source data science and machine learning tools, primarily in Python. The 2026 edition ran three days, on 5–7 June 2026, at Convene Sancroft, Rose Street, Paternoster Square, London EC4M 7DQ, with approximately 44 speakers confirmed. As of 31 October 2026, the organiser had not announced the next edition.
The three-day format divided clearly: June 5 was dedicated to hands-on tutorials for smaller groups; June 6-7 hosted the main conference programme of talks and lightning talks. Content spans the full PyData stack, from foundational data engineering through model development to emerging AI applications. The community-driven programme selection typically reflects active practitioner concerns rather than vendor priorities. Confirmed keynote speakers for 2026 included Samuel Colvin (Pydantic), Rachel Lee Nabors (Arize), Jeremiah Lowin (Prefect), and Martin O'Reilly (Alan Turing Institute).
NumFOCUS is a US-based nonprofit organisation that supports open-source scientific software. PyData is a programme under NumFOCUS that organises community conferences globally. PyData London is one of the largest PyData events in the world, alongside PyData Global and PyData NYC.
Python is the dominant language in the programme, but the conference is open to any practitioner working on data analysis, machine learning, or related open-source tooling regardless of language. Talks on R, Julia, and polyglot workflows regularly appear in the programme.
PyData London uses a community-driven call for proposals, with programme committee review. The CFP process emphasises practitioner experience over academic credentials, and speaker fees are not typically paid for community conferences of this type.
Convene Sancroft is a modern conference venue at Rose Street, Paternoster Square, London EC4M 7DQ, directly adjacent to St. Paul's Cathedral in the City of London. The venue is accessible from St. Paul's station (Central Line) and is within walking distance of Blackfriars and City Thameslink stations.
NumFOCUS is the fiscal sponsor and organisational home of PyData. The London chapter is one of the most active in the global network, with a strong local volunteer community. The conference operates on a not-for-profit basis, with ticket revenue supporting the PyData programme and NumFOCUS's mission of sustaining open-source scientific computing.
PyData London draws open-source contributors and practitioners from across Europe and beyond, making it the most internationally diverse Python data science gathering on the European calendar.
For the 2026 edition, tickets were sold via the Tito platform, linked from pydata.org/london2026. Pricing details for the last edition are not publicly disclosed in this record. No registration for a next edition had been announced as of 31 October 2026.
The venue is directly adjacent to St. Paul's station (Central Line). Blackfriars station (District and Circle Lines, Thameslink) is a 5-minute walk. Multiple bus routes serve Ludgate Circus.
Tutorial-day ticket options are not confirmed in this record as of verification; check the Tito registration page for current ticket types.
Virtual attendance details are not publicly disclosed as of verification; check pydata.org/london2026 for current format information.
| Official website | https://pydata.org/london2026/ |
| Register | https://pydata.org/london2026/ |
| Programme | not publicly disclosed as of verification |