Given a string of positive number ranging from 0 to 9, the task is to check whether the number is valid pin code or not, by using Python Regular Expression.The valid pin code of India must satisfy the following conditions.

Write a program to check if string contain only Numbers

Given a string S(input consisting) of ‘*’ and ‘#’. The length of the string is variable. The task is to find the minimum number of ‘*’ or ‘#’ to make it a valid string. The string is considered valid if the number of ‘*’ and ‘#’ are equal. The ‘*’ and ‘#’ can be at any position in the string.Note : The output will be a positive or negative integer based on number of ‘*’ and ‘#’ in the input string.(*>#): positive integer(#>*): negative integer(#=*): 0Example 1:Input 1:###*** -> Value of SOutput :0 ? number of * and # are equal

Mahi has a collection of mobile numbers.  His work is to validate them according to the following constraints:It should be of 10 digits.Only numerals are allowed.No leading zeroes.Single space may or may not be available after first 5 digits. Read N number of mobile numbers and classify them as either “VALID” or “INVALID”. Use Python regular expressions to accomplish this task on behalf of Mahi. Sample Input:3944246489056124782a30875312469 Sample Output:ValidInvalidInvalid

Check if a Number is Positive and Negative in Python

Design a Python function that uses regular expressions to validate dates in the format "yyyy-mm-dd." The function should return True if the date is valid and False if it's not. yyyy should be between 1000 and 2023mm should be between 01 and 12dd should be between 01 and 31Sample Input:2010-04-04Sample Output:True