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python Programming Glossary: inplace_add

Why is subtraction faster than addition in Python?

http://stackoverflow.com/questions/1396564/why-is-subtraction-faster-than-addition-in-python

the same number of instructions the only difference is INPLACE_ADD vs. INPLACE_SUBTRACT and 1 vs 1. Looking at the Python source.. guess. This is handled in ceval.c in PyEval_EvalFrameEx . INPLACE_ADD has a significant extra block of code to handle string concatenation... since you can't subtract strings. That means INPLACE_ADD contains more native code. Depending heavily on how the code..

Python class variable int vs array

http://stackoverflow.com/questions/16805648/python-class-variable-int-vs-array

0 self 19 DUP_TOP 20 LOAD_ATTR 2 n 23 LOAD_CONST 2 1 26 INPLACE_ADD 27 ROT_TWO 28 STORE_ATTR 2 n 31 LOAD_CONST 0 None 34 RETURN_VALUE..

Python Identity Problem: Multiple Personality Disorder. Need Code Shrink [duplicate]

http://stackoverflow.com/questions/2058948/python-identity-problem-multiple-personality-disorder-need-code-shrink

2 9 STORE_FAST 1 k 4 12 LOAD_FAST 1 k 15 LOAD_FAST 0 j 18 INPLACE_ADD 19 STORE_FAST 1 k So yes Python variables are labels that point..

Concatenating two lists - difference between '+=' and extend()

http://stackoverflow.com/questions/3653298/concatenating-two-lists-difference-between-and-extend

call which is slightly more expensive in Python than the INPLACE_ADD . It's really nothing you should be worrying about unless you're..

In Python, what is the difference between “.append()” and “+= []”?

http://stackoverflow.com/questions/725782/in-python-what-is-the-difference-between-append-and

6 LOAD_NAME 0 s 9 LOAD_CONST 0 'spam' 12 BUILD_LIST 1 15 INPLACE_ADD 16 STORE_NAME 0 s 19 LOAD_CONST 1 None 22 RETURN_VALUE We can..

Why is looping over range() in Python faster than using a while loop?

http://stackoverflow.com/questions/869229/why-is-looping-over-range-in-python-faster-than-using-a-while-loop

21 POP_TOP # 3 22 LOAD_NAME 0 i # 25 LOAD_CONST 2 1 # 28 INPLACE_ADD # 29 STORE_NAME 0 i # 32 JUMP_ABSOLUTE 9 # 35 POP_TOP 36..