I am not sure if you would classify this as a documentation bug or minor software bug
I have been teaching an Introduction to Programming using Python at Lehman College for more than half a dozen years.
For the first problem covering "if", I ask the students to write a program where the user is prompted to enter an integer and the program logic determines whether the number is odd or even.
I was surprised to see a student submission contain:
if number % 2 == int() : #even
rather than
if number % 2 == 0: #even
The Documentation did not say what happens if there was no argument.
I though an Exception would be thrown, but "no", int( ) returned a 0
Also float() returns 0.0
Jeff Gitlin
Lehman College
Bronx, New York