Ask for Input Again in C After Invalid Response
In this python tutorial, you volition learn about Python enquire for user input. As well, nosotros volition check:
- Python ask for user input once more
- Python inquire for user input countersign
- Python ask the user for integer input
- Python ask for user input yes no
- Python ask the user for Email input
- Python ask the user for multiple inputs
- Python part inquire for user input
- Python how to take continuous input
- Python ask the user for a string input
- Python inquire the user for a file input
Input() is a method that reads each line entered by the input devices and converts them into a string and returns it.
Python inquire for user input
Now, nosotros can run across how the user ask for input in python.
In this example, I have taken two inputs equally A = int(input("enter 1st number")), B = int(input("enter 2nd number")) and used addition operation for the inputs.
Case:
A = int(input("enter 1st number")) B = int(input("enter 2nd number")) C = A + B print(C) To go the sum of inputs equally output, we accept to use print(C). Beneath screenshot shows the output.
Read: Python NumPy linspace
Python inquire for user input again
Hither, we can come across how the user ask input again in Python.
- In this instance, I accept taken input equally age = int(input("Enter age: ")) and the while loop. The while loop takes an expression and executes the loop body.
- The while true ever evaluates the boolean value truthful and executes the body of the loop infinity times. The effort and except is used, endeavor is used to test the block of code for errors and except cake is used to handle the errors.
- If the condition is true, information technology returns the if statement else it returns the else argument.
- The continue argument is used to cease the present iteration and continue with the next iteration.
Case:
while Truthful: effort: historic period = int(input("Enter age: ")) if age<=20: print("The age is right") intermission; else: impress("The age is not correct") except ValueError: print("Invalid") proceed The loop ends when the condition is true. I have used impress("The age is correct") when the given condition is true. You lot can refer to the below screenshot for the output.
Python ask for user input password
Here, nosotros can see how the user enquire for the input password in python.
- In this case, I accept imported a module called getpass. This module provides a secure way to maintain the password.
- The getpass() function in Python is used to prompt the user using the cord prompt and read the input cord equally a password for the user.
- The prompt string is the argument passed in the input() function.
Example:
import getpass countersign = getpass.getpass() print('The password is', password) To impress the input password as output, I have used impress('The password is', password). In the beneath screenshot yous tin see the output.
Read: Python NumPy concatenate
Python enquire the user for integer input
Now, we tin see how the user ask for the integer input in python.
In this example, I have taken the input every bit Number = int(input("Enter a number")). We accept to employ int datatype for the integer input.
Example:
Number = int(input("Enter a number")) print("The Number is",Number) To get the output, I have used impress("The Number is",Number). You can refer to the beneath screenshot for the output.
Python ask for user input yes no
Here, we tin see how the user ask for yes no input in python.
- In this case, I have taken the input as chocolate = input("Do you lot want chocolate").
- I have used the if condition, as the if chocolate == ("yes"): This ways when the user enters the input as "yes" information technology prints ("Have It"), and also used the elif status.
- The elif chocolate == ("no"): if the user enters the input "no" information technology prints ("ok Thank you").
Case:
chocolate = input("Exercise you want chocolate") if chocolate == ("yep"): impress ("Have Information technology") elif chocolate == ("no"): print ("Ok Thank you lot") To get the output, I take used impress ("Have Information technology") and print ("Ok Cheers"). The below screenshot shows the output.
Python enquire the user for Email input
Here, we tin meet how the user ask for the Electronic mail input in python.
- In this example, I have taken the input every bit Email = input("Electronic mail ").
- I have used a while loop to bank check whether @ is present in the input, if it is not present the while loop iterates until the status is true.
- The if status is used to cheque "." is present in the given input. If both the weather condition are satisfied by the given input.
Example:
Electronic mail = input("Email ") while "@" not in Electronic mail: Email = input("This electronic mail address is not having '@' in it\nCheck it again: ") if "." non in E-mail: Electronic mail = input("This email address is not having '.' in it\ncheck information technology again: ") print("The email is valid") To print the output, I have used print("The email is valid"). The below screenshot shows the output.
Python ask the user for multiple inputs
Here, nosotros can see how the user ask for multiple inputs in python.
- In this example, I have taken for variables as a,b,c,d and I take taken the input as a,b,c,d = input("Enter a four value: ").split().
- The split() function is used to get multiple values for the user. The split up() is breaking the input by a specified separator. If the separator is not specified whitespace acts as a specifier.
- Four input values are separated and assigned for each variable.
Example:
a,b,c,d = input("Enter a four value: ").split() print(a) impress(b) print(c) print(d) To print the variable, I take used impress(a),impress(b),print(c),print(d). In the beneath screenshot, yous can see the output such as the input value is split and assigned for each variable.
Python function enquire for user input
At present, we can see how the function inquire for user input in python.
A function is defined as a block of organized and reuseable code that performs the deportment, python has born functions such as raw_input for python 2 and input() for python iii
In this example, I have taken an input as a = input('pythonguides'). The born function input() is used here.
Example:
a = input('pythonguides') impress(a) To impress the input value, I accept used print(a). You can refer to the below screenshot for the output.
Python how to take continuous input
Here, we tin can run across how to take continuous input in python.
- In this case, I take taken for variables like a,b,c and I take taken the input every bit a,b,c=map(int,input("enter the numbers").split(','))
- The dissever() function is used to get the continuous input values for the user. The split() part is breaking the input past a specified separator. If the separator is non specified whitespace acts equally a specifier. Here, I accept used the ',' separator.
- The input values are separated and assigned to each variable. The map() office is used to return the listing of values.
Example:
a,b,c=map(int,input("enter the numbers").split(',')) impress(a) impress(b) print(c) To print the variable, I have used print(a),impress(b),impress(c). In the below screenshot, you can see the output such as the input value is carve up and assigned for each variable. And also I have used the ',' separator while entering the input value.
Python ask the user for a string input
Here, we tin how the user ask for a string input in python.
- In this example, I have taken 2 inputs as Name = input("Enter student Name "), Marks = input("Enter marks ") and print("\due north") is to get each string input in the new line. The entered input values are assigned for variables Name and Marks.
Example:
Name = input("Enter pupil Name ") Marks = input("Enter marks ") impress("\north") print(Proper name, Marks) To impress the variable I accept used impress(Name, Marks). The Below screenshot shows the output.
Python ask the user for a file input
At present, nosotros tin can run into how the user inquire for a file input in python.
- In this case, I accept taken an input as file = input("Enter the Filename: ") and I take used the split() function.
- The split() function is breaking the input by a specified separator. If the separator is not specified whitespace acts as a specifier.
- Here, I take used the '.' separator and is used to dissever role to divide the input into filename and extension.
- The max dissever [-i] is used, [-1] represents there is no limit for the number of splits.
Instance:
file = input("Enter the Filename: ") extension = file.split(".") print ("The extension is: " + (extension[-i])) To get the output as extension, I have used print ("The extension is: " + (extension[-1])). You tin refer to the beneath screenshot for the output.
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In this Python tutorial, nosotros take learned about the Python ask for the user input. Also, We covered these below topics:
- Python enquire for user input once again
- Python enquire for user input password
- Python ask the user for integer input
- Python ask for user input aye no
- Python enquire the user for Email input
- Python ask the user for multiple inputs
- Python function ask for user input
- Python how to take continuous input
- Python ask the user for a string input
- Python inquire the user for a file input
Source: https://pythonguides.com/python-ask-for-user-input/
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