Force correct input python
WebAlso input in Python 2.x reads a line of input and then evaluates it. You want to use raw_input . Note: In Python 3.x, raw_input has been renamed to input and the old input method no longer exists. WebJun 23, 2015 · So an alternative approach is to use an infinite loop and break out on a correct reply: x = None while True: x = raw_input ("Please input a number 1 or 2: ") if x == '1': print '1' break elif x == '2': print '2' break else: print 'Invalid input, try again' print "all OK" Share Follow edited Jun 23, 2015 at 4:43
Force correct input python
Did you know?
WebNov 23, 2015 · The following code, is the one I want it to be capitalized. Meaning once the user inputs their answer to the licence plate, I want it to be outputted in capitals: ask2 = "" plate = "" if i... WebFeb 14, 2024 · Because Python works with String by default, actually you don't need any casting like int or str Also, if you were using version prior to 3.x, it would be raw_input instead of input. Since your solution seem to have been accepting input, I can be safe assuming that your Python is OK. test = input ('This only takes a string as an answer') …
WebDec 23, 1993 · from datetime import datetime def validate_date (d): try: datetime.strptime (d, '%m/%d/%Y') return True except ValueError: return False print validate_date ('02/26/2009') # prints False However, this will print true even if a single digit is entered for month/day. python string date datetime Share Improve this question Follow WebJan 28, 2015 · Is there a way to force a condition to be true in Python? I've seen it being done in Haskell before and am wondering if you can do it Python. For example: >>> …
WebOct 4, 2012 · 5. Convert the word entirely to lowercase (or uppercase) first: word = input ("Please Enter a word:").lower () # Or `.upper ()`. Also, to get the first letter of your word, use word [0], not word [1]. Lists are zero-indexed in Python and almost all programming languages. You can also condense your code by quite a bit: WebThe user must additionally make sure that the path to the file contains the correct subdirectory name if the file is saved in a subdirectory. The directory where the file is saved not existing or the user not having the proper rights to access it are two more potential causes of the issue.
WebApr 25, 2014 · The simplest way to accomplish this is to put the input method in a while loop. Use continue when you get bad input, and break out of the loop when you're satisfied. When Your Input Might Raise an Exception Use try and except to detect when the user enters data that can't be parsed.
WebIn Python 2, input () reads input from the keyboard, parses and evaluates it as a Python expression, and returns the resulting value. Python 3 doesn’t provide a single function that does exactly what Python 2’s input () … breathless referencesWebJan 8, 2015 · Hair & Beauty Salon – Entity Relationship Diagram (ERD) Creating Logic Gates using Transistors. The Lost Roman Sundial. Art Expo – Code Breaking Challenge. Understanding Binary Data. Work Life Balance (HTML, CSS & JS Challenge) The Birthday Paradox. Elastic Collision in a Pool Game. breathless resortWebMar 29, 2024 · In Python, primitive data types (int, float, str, booleans) are themselves classes. Thus if you instantiate the class attributes of your class before passing the method parameters during object creation, the argument values will be converted if possible (such as from a int to a float) or an exception will be thrown if the data type cannot be ... cotter and associatesWebJul 6, 2015 · In order to ask for more input, you needed to wrap your prompts in a loop. You would then need to add an option to the user to allow them to quit. Also, you can move the prompting for numbers to a function. This would keep asking for number if the user typed in a character. Share Follow edited Jul 6, 2015 at 8:49 answered Jul 6, 2015 at 8:01 cotten velvet green throw pillowsWebApr 1, 2012 · import re while True: inp = input () # raw_input in Python 2.x if re.match (r' [a-zA-Z0-9] {2}- [a-zA-Z0-9] {3}$', inp): return inp print ('Invalid office code, please enter again:') Note that in many other cases, you can simply try … cotterals lights glasgowWebDec 8, 2013 · Since Python 3, input returns a string which you have to explicitly convert to int s, with int, like this x = int (input ("Enter a number: ")) y = int (input ("Enter a number: ")) You can accept numbers of any base and convert them directly to base-10 with the int function, like this cottenweiler asiaWebThis solution will work except the user will still have to press enter at some point to progress: import time import threading fail = False def time_expired (): print ("Too slow!") fail = True time = threading.Timer (10, time_expired) time.start () prompt = input ("You have 10 seconds to choose the correct answer.\n") if prompt != None and not ... breathless remake