Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. (more…)

Real Python video lessons now come with full subtitles and interactive, searchable transcripts. Read the announcement to see examples and learn more. (more…)

Have fun playing a card game and learn Python! STJ: Python will help you learn to program while having fun at the same time Pre-sell is open Pre-sell for Summon The JSON is open. It is the second language Summon The JSON deck is available for, after JavaS... (more…)

When will ArbitrageLab be released, how will we gain access, and what will be included? We answer those questions in the following blog post. (more…)

A few minutes ago a friend sent me the following code, and told me its misbehaving: def foo(l=[]): l.append("hello!") print(l) foo() foo() Instead of printing ["hello"] twice, it printed ["hello", "hello"]. Any ideas why? what's going on? I'll... (more…)