In Python, all variables that are defined and accessible at some point in code are either in a local scope or global scope. This tutorial requires some knowledge in python functions, refer to Introduction to functions... (more…)

Since Python 1.5 (1997), CPython users can run multiple interpreters in the same process. However, interpreters in the same process have always shared a significant amount of global state. This is a source of bugs, with a growing impact as more and more... (more…)

Dropbox, to our customers, needs to be a reliable and responsive service. As a company, we’ve had to scale constantly since our start, today serving more than 700M registered users in every time zone on the planet who generate at least 300,000 requests pe... (more…)

You can use py-spy to profile already running Python code without restarting your process or modifying the source code. (more…)

We all love Python's defaultdict, but how about a list variant? (more…)