Force correct input python
Web(using Python2.7) Here's my code, but it's not working properly: choice = raw_input ('Enjoying the course? (y/n)') student_surveyPromptOn = True while student_surveyPromptOn: if choice != raw_input ('Enjoying the course? (y/n)'): print ("Sorry, I didn't catch that. Enter again: ") else: student_surveyPromptOn = False WebApr 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 …
Force correct input python
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WebMar 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 ... 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 () …
WebAug 14, 2024 · Now, there's a better way to break out of the loop without using the helper function break_main_loop (), and that's done like so: def stuff (): pass def main (): # do stuff, e.g. getting other user input () while True: stuff () if str (input ("Do you wish to continue: [y/n]")) == 'n': break #continue doing stuff main () This lets you get rid of ... WebJul 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
WebThis 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 ... Web讲解：159.271、Futoshiki Solver、Python、PythonSQL Haskel. shujianmao. 2024.04.08 04:38 字数 2028 字数 2028
WebApr 25, 2024 · To solve this question, take the input in an infinite loop (using while True) and when the value is valid, terminate the loop (using break keyword ). To handle value …
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 rwf4700bbWebOct 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: is dead horse bay openWebThe 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. rwf4700aWebNov 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... rwf51p2WebNov 21, 2012 · For question 1: enter pressed when prompted for input results in an empty string returned (are you using input() in your scripts?). Apparently empty string is not a valid input for your functions. For all I know, whatever you enter as the input, you end up with … is dead island 2 split screenWebOct 24, 2013 · 1. You first need to import sys. Place this: import sys. at the top of your code to import the sys module. However, a much easier way to exit a script is to just do this: raise SystemExit. The above code does the exact same thing as sys.exit. Also, for your code to work properly, you will need to do two more things: rwf4700bWebFeb 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') … rwf55basin