convert string to numbers python code example

Example 1: python convert string to int

# this is a string
a = "12345"
# use int() to convert to integer
b = int(a)

# if string cannot be converted to integer,
a = "This cannot be converted to an integer"
b = int(a)  # the interpreter raises ValueError

Example 2: how to make string to int in python

string = "324501763"
integer = int(string)

Example 3: how to get a int from string python

import re
s = "12 hello 52 19 some random 15 number"
# Extract numbers and cast them to int
list_of_nums = map(int, re.findall('\d+', s))
print list_of_nums

Example 4: convert string to int python

my_string = "50485"
print(int(my_string))