Each guide walks through one Talk Python to Me episode, topic by topic: the big ideas, the best quotes, and links to dig deeper.
Python 3.15 ships Tachyon, a sampling profiler in the standard library under the name profiling.sampling. It reads a running program's stack from a separate process, so it can attach to a live production app by PID at close to zero cost. The first prototype managed two samples a second. It now does over a million.
EVE Online has run on Python 2 since it launched in 2003, and its roughly 2.4 million lines of Python are now headed for Python 3.12. The studio proved the jump on its sister game, EVE Frontier, first. Getting the syntax right turned out to be the easy part. The hard work is 6,500 lines of division, 100 gigabytes of pickled objects, a pile of C++ extensions and a game server that has to stay up every day.
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