Python 3 integer division

python python-3.x division

173,211

Try this:

a = 1
b = 2
int_div  = a // b

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Megatron

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Updated on January 31, 2022

Comments

Megatron over 2 years

In Python 3 vs Python 2.6, I've noticed that I can divide two integers and get a float. How do you get the Python 2.6 behaviour back?

Is there a different method to get int/int = int?
- falsetru over 10 years
  
  Use // (floor division) instead of / (true division).
- Seng Cheong over 10 years
  
  PEP 238 introduced the // floor division operator.
Kyle Strand over 8 years

Note that // is available in Python2 as well (since 2.2, I believe).
asmaier over 6 years

Note that 1.0 // 2 and 1 // 2.0 maybe surprisingly return a float with value 0.0.
Thorham almost 5 years

Floor divisions are NOT integer divisions. A floor division will return -2 for -3 / 2, while an integer division should return -1 (there's no floor or ceil in integer land).