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How would I go about writing python functions that can be append to strings (or other object)?
for example:
"FOO".lower()
How do they receive input?
Are they generators?
I will happily read up on it, but I don’t really know what I am looking for.
Strings are objects and thus have methods.
lower()is one of them.You cannot add a custom method to
str,unicodeor any other builtin (written in C) classes – see Implementing a custom string method and Extending builtin classes in python