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def get_input( prompt ):
value = input( prompt )
for letter in value:
if letter < 'a' or letter > 'z':
print( "Invalid answer!")
value = get_input( prompt ) # DO NOT DO THIS!
return value
s = get_input( "Give a string of lower case letters: " )
print( "The user entered:", s )
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This window allows you to run Python code without installing a thing. The code you write here is not automatically submitted to Dodona. This feature is still in full development, so we're happy to hear about your suggestions and issues using the contact form.