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











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1 Answer
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1 Answer
1






active

oldest

votes









active

oldest

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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


















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