http://simonwillison.net/2018-12-29T05:18:48+00:00Simon Willison2018-12-29T05:18:48+00:002018-12-29T05:18:48+00:00https://simonwillison.net/2018/Dec/29/py-spy/#atom-tag

<p><strong><a href="https://github.com/benfred/py-spy">benfred/py-spy</a></strong></p> A Python port of Julia Evans’ rbspy profiler, which she describes as “probably better” than the original. I just tried it out and it’s really impressive: it’s written in Rust but has precompiled binaries so you can just run “pip install py-spy” to install it. Shows live output in the terminal while your program is running and also includes the option to generate neat SVG flame graphs. <p><small></small>Via <a href="https://jvns.ca/blog/2018/12/23/2018--year-in-review/">2018: Year in review - Julia Evans</a></small></p> <p>Tags: <a href="https://simonwillison.net/tags/profiler">profiler</a>, <a href="https://simonwillison.net/tags/python">python</a>, <a href="https://simonwillison.net/tags/rust">rust</a></p>

2017-12-18T12:12:12+00:002017-12-18T12:12:12+00:00https://simonwillison.net/2017/Dec/18/how-do-ruby--python-profilers-work/#atom-tag

<p><strong><a href="https://jvns.ca/blog/2017/12/17/how-do-ruby---python-profilers-work-/">How do Ruby &amp; Python profilers work?</a></strong></p> Julia Evans: “As a precursor to writing a Ruby profiler I wanted to do a survey of how existing Ruby &amp; Python profilers work.” <p>Tags: <a href="https://simonwillison.net/tags/profiler">profiler</a>, <a href="https://simonwillison.net/tags/julia-evans">julia-evans</a></p>

2009-02-17T21:35:31+00:002009-02-17T21:35:31+00:00https://simonwillison.net/2009/Feb/17/announcing/#atom-tag

<p><strong><a href="http://eric.themoritzfamily.com/2009/02/17/announcing-django-viewtools/">Announcing django-viewtools</a></strong></p> A really excellent idea—run ./manage.py viewtools --pdb /path/on/site/ to debug a view in your Django project that is raising an error using the Python debugger, or use --profile to run the full request cycle for that URL through the profiler. <p>Tags: <a href="https://simonwillison.net/tags/debugging">debugging</a>, <a href="https://simonwillison.net/tags/django">django</a>, <a href="https://simonwillison.net/tags/djangoviewtools">djangoviewtools</a>, <a href="https://simonwillison.net/tags/eric-moritz">eric-moritz</a>, <a href="https://simonwillison.net/tags/pdb">pdb</a>, <a href="https://simonwillison.net/tags/profiler">profiler</a>, <a href="https://simonwillison.net/tags/python">python</a></p>