These projects pledge to drop Python 2 support in or before 2020.

• pandas
• IPython
• mitmproxy
• Kivy
• Matplotlib
• NumPy
• Zulip
• SymPy
• Jupyter notebook
• PyMC3
• xonsh
• Astropy
• Biopython
• Pythran
• xarray
• PyStan
• Software Carpentry
• scikit-bio
• SunPy
• Axelrod
• rpy2
• FEniCS
• RDKit
• OpenQuake engine
• yt
• osBrain
• PyMeasure

• Altair
• music21
• imageio
• An Introduction to Applied Bioinformatics
• QIIME
• SPADE
• gala
• CIS
• cual-id