Question

I have an issue that really drives me mad. Normally doing int(20.0) would result in 20. So far so good. But:

levels = [int(gex_dict[i]) for i in sorted(gex_dict.keys())]

while gex_dict[i] returns a float, e.g. 20.0, results in:

"invalid literal for int() with base 10: '20.0'"

I am just one step away from munching the last piece of my keyboard.

Answer 1

'20.0' is a string, not a float; you can tell by the single-quotes in the error message. You can get an int out of it by first parsing it with float, then truncating it with int:

>>> int(float('20.0'))
20

(Though maybe you’d want to store floats instead of strings in your dictionary, since that is what you seem to be expecting.)