If an infinite loop is accidentally coded, will Python generate an error message to indicate it?
In many cases, there is no error generated for an infinite loop condition. You will just observe that your program no longer seems to be doing anything or you will notice an increase in resources being used (CPU utilization, etc.).
In the following example code, there is a missing statement to increment the variable
counter which should cause the
while loop to terminate. This code will just run without generating any errors (if left long enough you may see an error indicating no more available memory).
from random import randint new_list =  counter = 0 # Add 100 random numbers to a list while counter < 100: value = randint(0, 100) new_list.append(value)
In this next code example, there is a missing decrement of the
number variable when the
calc_number() function recursively calls itself. This code WILL generate an error message in Python. The error returned will be
RuntimeError: maximum recursion depth exceeded.
def calc_number(number): if number > 0: calc_number(number) calc_number(10)