What's happening here?

[jesse68]

Hi, I'm not understanding what's happening here?

print ( int('101', 2))
# Equals 5

However...

print ( int('101))
# Equals 101

I guess I don't know what the comma is doing.


Thanks much.

[deanhystad]

The comma is seperating the argumemts '101' and 2. If you want to know what the arguments do, read the documentation for int().

[jesse68]

So it's base 2.

This is wrong I'm sure but I'm reading..

1 0 1
2 0 2
= 4

Still looking..

[Gribouillis]

It's only simple maths

>>> int('101', 2) == 1 * 2**2 + 0 * 2**1 + 1 * 2**0
True
>>> int('101') == 1 * 10**2 + 0 * 10**1 + 1 * 10**0
True
>>>