Python program to check whether a given string is binary or not

Program to check the whether a given string is binary or not

# Python program to check whether a string 
# is a binary string or not

# Getting string input from the user 
myStr =  input('Enter the binary string : ')

# check whether a string is binary string or not
flag = True
for char in myStr :
    if(char == '0' or char == '1'):
       continue 
    else :
        flag = False
        print("The String is not a binary string")
        break
    
if(flag):
    print("The String is binary string")

Output:

Enter the binary string : 01001110
The String is binary string

Another Approach:

Another approach to solve the problem is by using sets to store the characters of the binary string. We will store '0' and '1' to the set and then compare it with the characters of the string, if there exists any character other than those present in the set return false otherwise return true.

Program to check whether a given string is binary or not

# Python program to check whether a string 
# is a binary string or not

# Getting string input from the user 
myStr =  input('Enter the binary string : ')

# check whether a string is binary string or not
strSet = set(myStr)
binValues = {'0', '1'}
  
if binValues == strSet or strSet == {'0'} or strSet == {'1'}:
    print("The String is binary string")
else :
    print("The String is not a binary string")

Output:

Enter the binary string : 011010101111
The String is binary string

Explanation:

In the above code, we have taken the string as input from the user. And then created two sets one strSet consisting of elements of the string and other binValues consisting of binary values i.e. 0 and 1. Then we have compared values and return the statements based on the comparison.