Python – Break Statement
Python Break statement
When the condition is fulfilled, the break statement in Python is used to exit the programme from the loop containing it.
If the break statement is used in a nested loop (loop inside the loop), the innermost loop will be terminated once the break requirements are met.
Break statement with While loop
If the value of variable j becomes 4, the break statement is used to exit the while loop in the example below.
j=1
while (j < 10):
if (j == 4):
print("Getting out of the loop.")
break
print(j)
j = j + 1
The output of the above code will be:
1 2 3 Getting out of the loop.
Break statement with For loop
If the value of variable x becomes ‘yellow,’ the break statement is used to exit the for loop.
color = ['red', 'blue', 'green', 'yellow', 'black', 'white']
for x in color:
if(x == 'yellow'):
print("Getting out of the loop.")
break
print(x)
The output of the above code will be:
red blue green Getting out of the loop.
Break statement with Nested loop
When the multiplier reaches 100 in the example below, the break statement ends the inner loop.
# nested loop without break statement
digits = [1, 2, 3]
multipliers = [10, 100, 1000]
print("# nested loop without break statement")
for digit in digits:
for multiplier in multipliers:
print (digit * multiplier)
The output of the above code will be:
# nested loop without break statement 10 100 1000 20 200 2000 30 300 3000
# nested loop with break statement
digits = [1, 2, 3]
multipliers = [10, 100, 1000]
print("# nested loop with break statement")
for digit in digits:
for multiplier in multipliers:
if (multiplier == 100):
break
print (digit * multiplier)
The output of the above code will be:
# nested loop with break statement 10 20 30