1) To find the absolute value of a number:

 >-8.32*-1 vs abs(-8.32) #saves 1 byte




2) If one wants to append list B at the end of A, then:


 A+=[B]vs vs A.append(B)


3) If one wants to extend A using elements of B, then:
 
 A+=B vs A.extend(B)

 

4) Increment m by n if a certain condition is true in Python

 m+=(Condition)*n vs if Condition:m+=n

Ref: http://ajs-handling-problems-in-pythonblog.blogspot.in/