I expect this question risks being closed as opinion-based, but it is a genuine question, and I assume there is a technical answer.
The builtin functions len and type confuse me, because I keep wanting to write
x.len()
or even
x.len
instead of
len(x)
This is probably because I use numpy x.shape frequently, and
I wondered what the rationale for this is? I assume it is something related to being dynamically typed, or maybe something related to None, but I couldn't figure it out. Are there certain situations where having these as members (properties or methods) doesn't make sense? Or maybe it is a speed consideration?