Tab algorithm from python?

Question

Python

I'm writing my own lexical analyzer and I need a tab detection algorithm like from python.
In python.

I already made 3 prototypes:
Just with tab count:

def GetTabs(code):
  index = 0

  for char in code:
    if char == '\t': index+=1
    else: return index

Counting tabs and spaces

def GetTabs(code):
  index = 0
  SpaceCount = 1

  for char in code:
    if not char.isspace(): return index

    if char == '\t': index+=1
    else:
      if SpaceCount == 4:
        index+=1
        SpaceCount = 1

      elif char == " ":
        SpaceCount+=1

And using .split()

But all 3 prototypes can be broken by playing with tabs and spaces.
I'm wondering what such an algorithm would look like in python itself

Answer 1

Python can also be broken if you mix tabs and spaces.

Answer 2

No, not the tabulation algorithm from Python.