Question

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How to break out of multiple loops in Python?

is it possible to break out of two for loops in Python?
i.e.

for i in range(1,100):  
    for j in range(1,100):  
        break ALL the loops!

Answer 1

No, there is no nested break statement in python.

Instead, you can simplify your function, like this:

import itertools
for i,j in itertools.product(range(1, 100), repeat=2):
  break

.. or put the code into its own function, and use return:

def _helper():
   for i in range(1,100):
       for j in range(1,100):
           return
_helper()

.. or use an exception:

class BreakAllTheLoops(BaseException): pass
try:
   for i in range(1,100):
       for j in range(1,100):
           raise BreakAllTheLoops()
except BreakAllTheLoops:
    pass

.. or use for-else-continue:

for i in range(1,100):
    for j in range(1,100):
       break
    else:
       continue
    break

.. or use a flag variable:

exitFlag = False
for i in range(1,100):
    for j in range(1,100):
        exitFlag = True
        break
    if exitFlag:
        break