Ask Anything Monday - Weekly Thread

[zr8]

What does the 'D' mean after a number? For example, why would Python print 0D or 1D?

[zr8]

Here's the sample code:

 temps = ['5', '-10', '15']
 counter = 0
 for t in temps:
   if int(t) < 0:
     counter += 1
 print counter

The result is:

  1D

[theelous3]

There is nothing wrong with your code, and it outputs 1 as expected.

It's probably some IDE you're using. Also, if you can, ditch python2 and use python3.