How to limit the type of characters input python












3















How can I limit the number of characters and type of characters that can be inputted.



s = input('What is your number)


a number can only be 9 digits so it should be limited to 9 digits and only numbers



x = input('what is your email address)


an email address can contain a minimum of 8 characters and a maximum of 60 characters and also must contain an @ symbol.



How would I go about doing this?










share|improve this question


















  • 2





    You can not limit the input while the user is typing. You will have to take the input, check it and reprompt if it fails the check.

    – Klaus D.
    Nov 20 '18 at 3:46













  • How would I got about doing that>

    – Call More
    Nov 20 '18 at 3:47











  • check len of s and/or x

    – kstullich
    Nov 20 '18 at 3:48











  • And how about the number the type of characters? Also, when I get the length what do I do with it?

    – Call More
    Nov 20 '18 at 3:49











  • How to do it? You will have to write code. Tell us if you get stuck!

    – Klaus D.
    Nov 20 '18 at 3:51
















3















How can I limit the number of characters and type of characters that can be inputted.



s = input('What is your number)


a number can only be 9 digits so it should be limited to 9 digits and only numbers



x = input('what is your email address)


an email address can contain a minimum of 8 characters and a maximum of 60 characters and also must contain an @ symbol.



How would I go about doing this?










share|improve this question


















  • 2





    You can not limit the input while the user is typing. You will have to take the input, check it and reprompt if it fails the check.

    – Klaus D.
    Nov 20 '18 at 3:46













  • How would I got about doing that>

    – Call More
    Nov 20 '18 at 3:47











  • check len of s and/or x

    – kstullich
    Nov 20 '18 at 3:48











  • And how about the number the type of characters? Also, when I get the length what do I do with it?

    – Call More
    Nov 20 '18 at 3:49











  • How to do it? You will have to write code. Tell us if you get stuck!

    – Klaus D.
    Nov 20 '18 at 3:51














3












3








3








How can I limit the number of characters and type of characters that can be inputted.



s = input('What is your number)


a number can only be 9 digits so it should be limited to 9 digits and only numbers



x = input('what is your email address)


an email address can contain a minimum of 8 characters and a maximum of 60 characters and also must contain an @ symbol.



How would I go about doing this?










share|improve this question














How can I limit the number of characters and type of characters that can be inputted.



s = input('What is your number)


a number can only be 9 digits so it should be limited to 9 digits and only numbers



x = input('what is your email address)


an email address can contain a minimum of 8 characters and a maximum of 60 characters and also must contain an @ symbol.



How would I go about doing this?







python limit






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Nov 20 '18 at 3:44









Call MoreCall More

235




235








  • 2





    You can not limit the input while the user is typing. You will have to take the input, check it and reprompt if it fails the check.

    – Klaus D.
    Nov 20 '18 at 3:46













  • How would I got about doing that>

    – Call More
    Nov 20 '18 at 3:47











  • check len of s and/or x

    – kstullich
    Nov 20 '18 at 3:48











  • And how about the number the type of characters? Also, when I get the length what do I do with it?

    – Call More
    Nov 20 '18 at 3:49











  • How to do it? You will have to write code. Tell us if you get stuck!

    – Klaus D.
    Nov 20 '18 at 3:51














  • 2





    You can not limit the input while the user is typing. You will have to take the input, check it and reprompt if it fails the check.

    – Klaus D.
    Nov 20 '18 at 3:46













  • How would I got about doing that>

    – Call More
    Nov 20 '18 at 3:47











  • check len of s and/or x

    – kstullich
    Nov 20 '18 at 3:48











  • And how about the number the type of characters? Also, when I get the length what do I do with it?

    – Call More
    Nov 20 '18 at 3:49











  • How to do it? You will have to write code. Tell us if you get stuck!

    – Klaus D.
    Nov 20 '18 at 3:51








2




2





You can not limit the input while the user is typing. You will have to take the input, check it and reprompt if it fails the check.

– Klaus D.
Nov 20 '18 at 3:46







You can not limit the input while the user is typing. You will have to take the input, check it and reprompt if it fails the check.

– Klaus D.
Nov 20 '18 at 3:46















How would I got about doing that>

– Call More
Nov 20 '18 at 3:47





How would I got about doing that>

– Call More
Nov 20 '18 at 3:47













check len of s and/or x

– kstullich
Nov 20 '18 at 3:48





check len of s and/or x

– kstullich
Nov 20 '18 at 3:48













And how about the number the type of characters? Also, when I get the length what do I do with it?

– Call More
Nov 20 '18 at 3:49





And how about the number the type of characters? Also, when I get the length what do I do with it?

– Call More
Nov 20 '18 at 3:49













How to do it? You will have to write code. Tell us if you get stuck!

– Klaus D.
Nov 20 '18 at 3:51





How to do it? You will have to write code. Tell us if you get stuck!

– Klaus D.
Nov 20 '18 at 3:51












1 Answer
1






active

oldest

votes


















2














In fact, my dear friend, you cannot limit input function, but you can achieve what you want by this way:



def isnumber(s):
if s.isdigit() and len(s) <= 9:
return True
else:
print('you should input number and length less than 9')
return False

def main():
s = input('What is your number')
while not isnumber(s):
s = input('What is your number')
print("your number is", s)


if __name__ == "__main__":
main()





share|improve this answer
























  • Thank you!!!!!!

    – Call More
    Nov 21 '18 at 18:54











Your Answer






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: "1"
};
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: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
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
});


}
});














draft saved

draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53385899%2fhow-to-limit-the-type-of-characters-input-python%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown

























1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









2














In fact, my dear friend, you cannot limit input function, but you can achieve what you want by this way:



def isnumber(s):
if s.isdigit() and len(s) <= 9:
return True
else:
print('you should input number and length less than 9')
return False

def main():
s = input('What is your number')
while not isnumber(s):
s = input('What is your number')
print("your number is", s)


if __name__ == "__main__":
main()





share|improve this answer
























  • Thank you!!!!!!

    – Call More
    Nov 21 '18 at 18:54
















2














In fact, my dear friend, you cannot limit input function, but you can achieve what you want by this way:



def isnumber(s):
if s.isdigit() and len(s) <= 9:
return True
else:
print('you should input number and length less than 9')
return False

def main():
s = input('What is your number')
while not isnumber(s):
s = input('What is your number')
print("your number is", s)


if __name__ == "__main__":
main()





share|improve this answer
























  • Thank you!!!!!!

    – Call More
    Nov 21 '18 at 18:54














2












2








2







In fact, my dear friend, you cannot limit input function, but you can achieve what you want by this way:



def isnumber(s):
if s.isdigit() and len(s) <= 9:
return True
else:
print('you should input number and length less than 9')
return False

def main():
s = input('What is your number')
while not isnumber(s):
s = input('What is your number')
print("your number is", s)


if __name__ == "__main__":
main()





share|improve this answer













In fact, my dear friend, you cannot limit input function, but you can achieve what you want by this way:



def isnumber(s):
if s.isdigit() and len(s) <= 9:
return True
else:
print('you should input number and length less than 9')
return False

def main():
s = input('What is your number')
while not isnumber(s):
s = input('What is your number')
print("your number is", s)


if __name__ == "__main__":
main()






share|improve this answer












share|improve this answer



share|improve this answer










answered Nov 20 '18 at 5:16









Mark WhiteMark White

407310




407310













  • Thank you!!!!!!

    – Call More
    Nov 21 '18 at 18:54



















  • Thank you!!!!!!

    – Call More
    Nov 21 '18 at 18:54

















Thank you!!!!!!

– Call More
Nov 21 '18 at 18:54





Thank you!!!!!!

– Call More
Nov 21 '18 at 18:54


















draft saved

draft discarded




















































Thanks for contributing an answer to Stack Overflow!


  • Please be sure to answer the question. Provide details and share your research!

But avoid



  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.


To learn more, see our tips on writing great answers.




draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53385899%2fhow-to-limit-the-type-of-characters-input-python%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown





















































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown

































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown







Popular posts from this blog

android studio warns about leanback feature tag usage required on manifest while using Unity exported app?

SQL update select statement

'app-layout' is not a known element: how to share Component with different Modules