Let's Write an IPython Extension (in IPython)
summary
A live-built IPython extension that prints execution time for every cell is implemented entirely inside IPython using the events API and a single file in .IPython/extensions/timer.py The code registers callbacks on pre_run_cell and post_run_cell, implements load_ipython_extension and unload_ipython_extension, handles a None timer, and fixes duplicate registrations by keeping one instance and by clearing the event callbacks manually; the extension ends up working in the same session.
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chapters (9)
- 0:00Start
- 0:44Write an Extension for Ipython
- 1:22Extensions
- 2:03Make an Ipython Extension
- 2:54Edit Magic
- 3:29Python Events
- 4:34The Load Ipython Extension Function
- 6:14Unload an Extension
- 7:36The Ipython Object
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