Why does Python return 0 for this & operation?

Question

I'm learning Python and messing around with operations when I tried

>>> 14 & 16
0
>>> 0b1110 & 0b10000
0

In my head it would look like this:

>>> 0b1110 & 0b10000
1

From my understanding the & operator compares the 2 numbers in bit form to see if each bit is 1 and if so assigns a 1 to the returned value.

So why would this return 0 instead of 1?

Answer 1

Bits are right-aligned (padding with 0 on the left as necessary), so 14 & 16 compares as

   1110
& 10000
  -----
  00000

not

   1110
&  10000
   -----
   10000  (16, not 1)