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Python string | numbers

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In Python3 string.digits — it is a pre-initialized string used as a string constant. In Python, string.digits will produce lowercase letters "0123456789".

Syntax: string.digits

Parameters: Doesn’t take any parameter, since it’s not a function.

Returns: Return all digit letters.

Note. Make sure to import the string library function to use string.digits

Code # 1:

# import string library function

import string 

  
# Store the value as a result of a variable

result = string.digits 

 
# Print value

print (result) 

Output:

 0123456789 

Code # 2: this code checks if there are only numbers in the input line

# import string library function

import string 

 
# The function checks if the input line is valid
# har only numbers or not

def check (value): 

for letter in value: 

 

# If something other than a number

# email is present, then return

# False, otherwise return True

if letter not in string.digits: 

  return False

  return True

 
Driver code

input1  = "0123 456 789"

print (input1, "-" " , check (input1)) 

  

input2 = "12.0124"

print (input2, "-"" , check (input2)) 

  

input3 = "12345"

print (input3, "-"" , check (input3)) 

Exit:

 0123 456 789 -" False 12.0124 -" False 12345 -" True 

Applications:
Digits string constants can be used in many practical applications.Let’s see the code, explain See how to use numbers to generate strong random passwords of a given size.

# Import random to generate
# random sequence of lines

import random 

 
# Import the string library function

import string 

 

def rand_pass (size): 

  

# Takes a random selection from

  # ascii_letters and digits

< p> generate_pass = ’ ’.join ([random.choice (string.ascii_uppercase +  

  string.ascii_lowercase +  

string.digits) 

for n in range (size)]) 

 

return generate_pass 

 
Driver code

password = rand_pass ( 10

print (password) 

 

Exit :

 2R8gaoDKqn 

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