python float to in int conversion

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         


        

Answer 1

The problem is that you have a string and not a float, see this as comparison:

>>> int(20.0)
20
>>> int('20.0')
Traceback (most recent call last):
  File "", line 1, in 
ValueError: invalid literal for int() with base 10: '20.0'

You can workaround this problem by first converting to float and then to int:

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

So it would be in your case:

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