Explain this code?

Question

Can anyone tell me what is the output of my code and why output is not coming for this code?
https://code.sololearn.com/c7j0KNEgy0HI/?ref=app

Answer 1

You are taking input in string format. So while comparison, compare it with string, not integer.
Ex: if n[0]=='7'

Answer 2

Mansi 👑
I also don't think you need two inputs. Something like this should suffice:
number = input()
if len(number) == 10 and (number[0] == '7' or number[0] == '8' or number[0] == '9'):
print("valid number")
else: print("invalid")
Unless you need user to keep entering input, then you use a while loop.

Answer 3

Thank you soo much all of you I got my answer
AKSHAY 🐰Tiara 🐰 Tomiwa Joseph Nova Aayush Saini

Answer 4

Mr.CODER it's okay you got your mistake that's enough
by the way I hope you will get a great success in python

Answer 5

AKSHAY It is showing no output for your input in my mobile I don't know about your mobile

Answer 6

Tomiwa Joseph I want to write a program which validate mobile number
Conditions are
1. Length of mobile number exactly 10
2. Mobile number must be starts with 7, 8 or 9

Answer 7

Nova Thank you soo much Sir I got my answer

Answer 8

Use this str(x).isdigit()

Answer 9

The code uses Boolean to compare String and Int which is wrong 🙄

Answer 10

Your correct one:
Faults: 1. You took input as int, but int has no len(). So after entering the for loop you have to convert int to str. You cannot do it before for loop because range does not take input as str.
2. You have to use break, otherwise the function will repeat continuously.
n = int(input())
for i in range(n):
m = str(n)
if len(m)==10 and (m[0]=='7' or m[0]=='8' or m[0]=='9'):
print("Yes")
break
else:
print("No")
break

Answer 11

Mr.CODER Actually I want to input a number every time in for loop and in for loop int(input()) means it will runs how many times it depends upon the input number and for every time it will ask you a 10 digit number. Do you know python or not

Answer 12

Mansi 👑
It's working fine.
Please explain what you want to do 😃😃
AKSHAY output is still no

Answer 13

I think this is valid code for ur problem statement
N = input("enter phn number")
if len(N)==10:
if N[0]=="7" or N[0]=="8" or N[0]=="9" :
print("yes")
else:
print("no")

Answer 14

🐰Tiara 🐰 I already got this but your program will give output yes if we input 8F54698745 but is it really a valid mobile number

Answer 15

If i will use letters it should be
Invalid

Answer 16

🐰Tiara 🐰 but according to your program it is valid

Answer 17

Mansi 👑 yeah I forgot that it should be string. Use n[0] in ('7','8','9')
🙂

Answer 18

You are taking input in string format. So while comparison, compare it with string, not integer.
Ex: if n[0]=='7'

Answer 19

You did not put the statement in its block. I mean no starting { and ending }.

Answer 20

Mansi 👑 sorry i didnt saw that input the second input which means how many time the input should run ,
In hurry just wrote one input ...
Sorry for wasting your time ...
By the way i am beginner and learning