如何退出多个(嵌套)循环？

flag = False
for i in range(10):
    for j in range(10):
        if condition:
            flag = True
            break
    if flag:
        break

class BreakLoop(Exception):
    pass

try:
    for i in range(10):
        for j in range(10):
            if condition:
                raise BreakLoop
except BreakLoop:
    pass

def check_condition():
    for i in range(10):
        for j in range(10):
            if condition:
                return True
    return False

while True:
    if check_condition():
        break