196
Python Performance: Why 'if not list' is 2x Faster Than Using len()
(blog.codingconfessions.com)
this post was submitted on 12 Apr 2025
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In context, one can consider it a bool.
Besides, I see c code all the time that treats pointers as bool for the purposes of an if statement. !pointer is very common and no one thinks that means pointer it's exclusively a Boolean concept.