Python - Binary to decimal

Asked Oct 24 '16 at 21:37

Active Oct 24 '16 at 21:43

Viewed 755 times

I don't know much about Python, so sorry if this sounds silly. I am getting a string of 0s and 1s from an Arduino, and I need to convert it to a 'regular' number. I've found out how to convert a binary string to a decimal integer pretty easily, but how would I convert it if my binary string is stored in a variable ?

Let's say I've got a=00000110

int(a, 2) doesn't work (tells me "int() can't convert non-string with explicit base")

Is there a specific syntax that I should be aware of ? Can't I put a variable in here ?

Thanks in advance !

asked Oct 24 '16 at 21:37

Kronope

3

Try this with the appropriate input: **a = "00000110"**. What you showed is trying to covert the integer 110, not a string. – Prune Oct 24 '16 at 21:39
First result from Google: [Converting integer to binary in python](http://stackoverflow.com/questions/10411085/converting-integer-to-binary-in-python) – Moinuddin Quadri Oct 24 '16 at 21:44
That's exactly what I was missing ! It's working now. Thanks ! – Kronope Oct 24 '16 at 21:45
1

If you think you have `00000110` and it is not a string you have 72. – Padraic Cunningham Oct 24 '16 at 21:46
@PadraicCunningham So Python 2 is interpreting it as octal? – juanpa.arrivillaga Oct 24 '16 at 22:04
@juanpa.arrivillaga, if they actually had `a=00000110` then it would be octal in python2, in python3 it would be a SyntaxError. In this case they seemed to have called `int(a)` where a is actually a str and teh tried to convert that. – Padraic Cunningham Oct 24 '16 at 22:10

Python - Binary to decimal

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