Question

Python Question
What does the ampersand sign mean?

Example: if not n & 1:
return False

Answer 1

http://www.tutorialspoint.com/python/python_basic_operators.htm

Answer 2

and returns true if and only if both operands are true

Answer 3

better buy the book "Learn Python The Hardway" which I am reading

Answer 4

The single ampersand is the bitwise AND operator.