Ygthkb

How to write a chaotic neutral protagonist and prevent my readers from thinking they are evil?

Why can't we use freedom of speech and expression to incite people to rebel against government in India?

Was it really inappropriate to write a pull request for the company I interviewed with?

What is brightness?

Align equations with text before one of them

Convert an array of objects to array of the objects' values

DC input on op amp integrator

Python function to ask for a multiple-choice answer

Why do phishing e-mails use faked e-mail addresses instead of the real one?

Can a space-faring robot still function over a billion years?

What does "rhumatis" mean?

Why doesn't "adolescent" take any articles in "listen to adolescent agonising"?

A bug in Excel? Conditional formatting for marking duplicates also highlights unique value

Being asked to review a paper in conference one has submitted to

What is the meaning of "producing negative zeroes" in a system that doesn't support it?

Can inspiration allow the Rogue to make a Sneak Attack?

Does the US political system, in principle, allow for a no-party system?

Can a Tiny Servant be used as a messenger?

Why for a sorceress does the Torah say "shall not live" instead of "shall be put to death?"

Why are special aircraft used for the carriers in the United States Navy?

Paper published similar to PhD thesis

Remove object from array based on array of some property of that object

Deal the cards to the players

What is the meaning of option 'by' in TikZ Intersections

Python function to ask for a multiple-choice answer

Multiple Choice Quiz with Stat TrackingSimple multiple choice quizPython bot to answer mathematical questions for a remote serverRun multiple python codes and Check with answer dataImproved version of “Let's read a random Goodreads book…”Lovely Lucky LAMBsMultiple choice quiz with difficulty and topic optionsBefunge-93 interpreter in PythonPython-Tk GUI, make long-running user code interact with the user, cleanlyPython: is answer grader program secure?

3

$begingroup$

# Standard multi choice question template

def multiChoiceQuestion(options: list):

    while True:

        print("nEnter the number of your choice - ")

        for x in len(options):

            print(str((x + 1)) + ". " + options[x])

        print("n")

        try:

            answer = int(input())

        except ValueError:

            print("Doesn't seem like a number! Try again!")

            continue

        if answer < 1 or answer > len(options):

            print("That option does not exist! Try again!")

            continue

        return answer

I created a template to ask a multi choice question in python. The loop will never reach it's end, since there is always a continue or a return statement. Is the while True condition appropriate for it?

python python-3.x validation

share|improve this question

edited 4 hours ago

200_success

130k16153419

asked 4 hours ago

HolyprogrammerHolyprogrammer

1428

New contributor

Holyprogrammer is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  "The loop will never reach it's end ... Is the while True condition appropriate for it?" That depends on whether that is the intended behaviour. Is it?
  $endgroup$
  – Mast
  3 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  Side note: for x in len(options): will produce an error as Python doesn't allow iteration over an integer. 200_success's approach is the way to go here, but for future reference, use for x in range(len(options)): if you really need to loop a certain number of times. This takes the len(options) integer and creates an interable out of it.
  $endgroup$
  – JDG
  1 hour ago
  
  
  

  
  
  
  

add a comment | 

3

$begingroup$

# Standard multi choice question template

def multiChoiceQuestion(options: list):

    while True:

        print("nEnter the number of your choice - ")

        for x in len(options):

            print(str((x + 1)) + ". " + options[x])

        print("n")

        try:

            answer = int(input())

        except ValueError:

            print("Doesn't seem like a number! Try again!")

            continue

        if answer < 1 or answer > len(options):

            print("That option does not exist! Try again!")

            continue

        return answer

I created a template to ask a multi choice question in python. The loop will never reach it's end, since there is always a continue or a return statement. Is the while True condition appropriate for it?

python python-3.x validation

share|improve this question

edited 4 hours ago

200_success

130k16153419

asked 4 hours ago

HolyprogrammerHolyprogrammer

1428

New contributor

Holyprogrammer is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  "The loop will never reach it's end ... Is the while True condition appropriate for it?" That depends on whether that is the intended behaviour. Is it?
  $endgroup$
  – Mast
  3 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  Side note: for x in len(options): will produce an error as Python doesn't allow iteration over an integer. 200_success's approach is the way to go here, but for future reference, use for x in range(len(options)): if you really need to loop a certain number of times. This takes the len(options) integer and creates an interable out of it.
  $endgroup$
  – JDG
  1 hour ago
  
  
  

  
  
  
  

add a comment | 

$begingroup$

# Standard multi choice question template

def multiChoiceQuestion(options: list):

    while True:

        print("nEnter the number of your choice - ")

        for x in len(options):

            print(str((x + 1)) + ". " + options[x])

        print("n")

        try:

            answer = int(input())

        except ValueError:

            print("Doesn't seem like a number! Try again!")

            continue

        if answer < 1 or answer > len(options):

            print("That option does not exist! Try again!")

            continue

        return answer

I created a template to ask a multi choice question in python. The loop will never reach it's end, since there is always a continue or a return statement. Is the while True condition appropriate for it?

python python-3.x validation

share|improve this question

edited 4 hours ago

200_success

130k16153419

asked 4 hours ago

HolyprogrammerHolyprogrammer

1428

New contributor

Holyprogrammer is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

$endgroup$

# Standard multi choice question template

def multiChoiceQuestion(options: list):

    while True:

        print("nEnter the number of your choice - ")

        for x in len(options):

            print(str((x + 1)) + ". " + options[x])

        print("n")

        try:

            answer = int(input())

        except ValueError:

            print("Doesn't seem like a number! Try again!")

            continue

        if answer < 1 or answer > len(options):

            print("That option does not exist! Try again!")

            continue

        return answer

share|improve this question

edited 4 hours ago

200_success

130k16153419

asked 4 hours ago

HolyprogrammerHolyprogrammer

1428

New contributor

Holyprogrammer is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

edited 4 hours ago

200_success

130k16153419

asked 4 hours ago

HolyprogrammerHolyprogrammer

1428

New contributor

Holyprogrammer is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

edited 4 hours ago

200_success

130k16153419

edited 4 hours ago

200_success

130k16153419

asked 4 hours ago

HolyprogrammerHolyprogrammer

1428

New contributor

Holyprogrammer is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 4 hours ago

HolyprogrammerHolyprogrammer

1428

1 Answer
1

active

oldest

votes

3

$begingroup$

The while True is fine, and is probably the best way to do it. However, the rest of the flow control is a bit clumsy. By rearranging a few statements, you can eliminate the continues.

PEP 8, the official Python style guide, recommends lowercase_with_underscores for function names unless you have a good reason to deviate.

The loop to print the numbered menu would be better written using enumerate(). Also, Python supports double-ended comparisons for validating that the answer is in range.

def multi_choice_question(options: list):

    while True:

        print("nEnter the number of your choice - ")

        for i, option in enumerate(options, 1):

            print('{0}. {1}'.format(i, option))

        print("n")

        try:

            answer = int(input())

            if 1 <= answer <= len(options):

                 return answer

            print("That option does not exist! Try again!")

        except ValueError:

            print("Doesn't seem like a number! Try again!")

share|improve this answer

answered 3 hours ago

200_success200_success

130k16153419

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  Is it standard now in python 3.x to use f-strings? print(f'{i}. {option}')
  $endgroup$
  – JDG
  1 hour ago
  
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  @JDG I wouldn't assume Python ≥ 3.6 if the question didn't specify it.
  $endgroup$
  – 200_success
  1 hour ago
  

  
  
  
  

add a comment | 

Your Answer

StackExchange.ifUsing("editor", function () {
return StackExchange.using("mathjaxEditing", function () {
StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix) {
StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["\$", "\$"]]);
});
});
}, "mathjax-editing");

StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");

StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "196"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});


}
});

Holyprogrammer is a new contributor. Be nice, and check out our Code of Conduct.

draft saved

draft discarded

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Sign up using Google

Sign up using Facebook

Sign up using Email and Password

Post as a guest

Name

Email

Required, but never shown

StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fcodereview.stackexchange.com%2fquestions%2f214935%2fpython-function-to-ask-for-a-multiple-choice-answer%23new-answer', 'question_page');
}
);

Post as a guest

Name

Email

Required, but never shown

3

$begingroup$

The while True is fine, and is probably the best way to do it. However, the rest of the flow control is a bit clumsy. By rearranging a few statements, you can eliminate the continues.

PEP 8, the official Python style guide, recommends lowercase_with_underscores for function names unless you have a good reason to deviate.

The loop to print the numbered menu would be better written using enumerate(). Also, Python supports double-ended comparisons for validating that the answer is in range.

def multi_choice_question(options: list):

    while True:

        print("nEnter the number of your choice - ")

        for i, option in enumerate(options, 1):

            print('{0}. {1}'.format(i, option))

        print("n")

        try:

            answer = int(input())

            if 1 <= answer <= len(options):

                 return answer

            print("That option does not exist! Try again!")

        except ValueError:

            print("Doesn't seem like a number! Try again!")

share|improve this answer

answered 3 hours ago

200_success200_success

130k16153419

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  Is it standard now in python 3.x to use f-strings? print(f'{i}. {option}')
  $endgroup$
  – JDG
  1 hour ago
  
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  @JDG I wouldn't assume Python ≥ 3.6 if the question didn't specify it.
  $endgroup$
  – 200_success
  1 hour ago
  

  
  
  
  

add a comment | 

3

$begingroup$

The while True is fine, and is probably the best way to do it. However, the rest of the flow control is a bit clumsy. By rearranging a few statements, you can eliminate the continues.

PEP 8, the official Python style guide, recommends lowercase_with_underscores for function names unless you have a good reason to deviate.

The loop to print the numbered menu would be better written using enumerate(). Also, Python supports double-ended comparisons for validating that the answer is in range.

def multi_choice_question(options: list):

    while True:

        print("nEnter the number of your choice - ")

        for i, option in enumerate(options, 1):

            print('{0}. {1}'.format(i, option))

        print("n")

        try:

            answer = int(input())

            if 1 <= answer <= len(options):

                 return answer

            print("That option does not exist! Try again!")

        except ValueError:

            print("Doesn't seem like a number! Try again!")

share|improve this answer

answered 3 hours ago

200_success200_success

130k16153419

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  Is it standard now in python 3.x to use f-strings? print(f'{i}. {option}')
  $endgroup$
  – JDG
  1 hour ago
  
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  @JDG I wouldn't assume Python ≥ 3.6 if the question didn't specify it.
  $endgroup$
  – 200_success
  1 hour ago
  

  
  
  
  

add a comment | 

$begingroup$

The while True is fine, and is probably the best way to do it. However, the rest of the flow control is a bit clumsy. By rearranging a few statements, you can eliminate the continues.

PEP 8, the official Python style guide, recommends lowercase_with_underscores for function names unless you have a good reason to deviate.

The loop to print the numbered menu would be better written using enumerate(). Also, Python supports double-ended comparisons for validating that the answer is in range.

def multi_choice_question(options: list):

    while True:

        print("nEnter the number of your choice - ")

        for i, option in enumerate(options, 1):

            print('{0}. {1}'.format(i, option))

        print("n")

        try:

            answer = int(input())

            if 1 <= answer <= len(options):

                 return answer

            print("That option does not exist! Try again!")

        except ValueError:

            print("Doesn't seem like a number! Try again!")

share|improve this answer

answered 3 hours ago

200_success200_success

130k16153419

$endgroup$

def multi_choice_question(options: list):

    while True:

        print("nEnter the number of your choice - ")

        for i, option in enumerate(options, 1):

            print('{0}. {1}'.format(i, option))

        print("n")

        try:

            answer = int(input())

            if 1 <= answer <= len(options):

                 return answer

            print("That option does not exist! Try again!")

        except ValueError:

            print("Doesn't seem like a number! Try again!")

share|improve this answer

answered 3 hours ago

200_success200_success

130k16153419

answered 3 hours ago

200_success200_success

130k16153419

answered 3 hours ago

200_success200_success

130k16153419