Python loop invalid input

Reject invalid input using a loop in python

take input
while incorrect input:
    take input
    
#Eg. Taking the month input for the first quarter of the year.
months = ['january', 'february', 'march']
month = input('Select the month').lower()
while month not in months:
  month = input('Oops! Incorrect input. Select month again').lower()

Python loop invalid input

while True:
    try:
        # Note: Python 2.x users should use raw_input, the equivalent of 3.x's input
        age = int(input("Please enter your age: "))
    except ValueError:
        print("Sorry, I didn't understand that.")
        #better try again... Return to the start of the loop
        continue
    else:
        #age was successfully parsed!
        #we're ready to exit the loop.
        break
if age >= 18: 
    print("You are able to vote in the United States!")
else:
    print("You are not able to vote in the United States.")

Source: stackoverflow.com

Similar codes

0 vote177 views1 answer
Split and only grab first part of string
Python
3 votes180 views2 answers
For loop python start at 1
Python
3 votes181 views1 answer
Python docstring
Python
2 votes176 views1 answer
Flask session timeout
Python
0 vote194 views1 answer
For loop to convert a list to lowercase
Python
-2 votes188 views1 answer
How to get the user argent in django
Python Django
1 vote176 views2 answers
Python dataframe remove header
Python
0 vote167 views2 answers
Loop through groupby pandas
Python
1 vote184 views1 answer
Matplotlib add legend axis x
Python
0 vote198 views1 answer
Np.eye(5)[list]
Python