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Find all the numbers in a string using regular expression in Python

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  • Last Updated : 12 Sep, 2022
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Given a string str containing numbers and alphabets, the task is to find all the numbers in str using regular expression. 


Input: abcd11gdf15hnnn678hh4 
Output: 11 15 678 4 

Input: 1abcd133hhe0 
Output: 1 133 0

Approach: The idea is to use Python re library to extract the sub-strings from the given string which match the pattern [0-9]+. This pattern will extract all the characters which match from 0 to 9 and the + sign indicates one or more occurrence of the continuous characters. 

Below is the implementation of the above approach: 


# Python3 program to extract all the numbers from a string
import re
# Function to extract all the numbers from the given string
def getNumbers(str):
    array = re.findall(r'[0-9]+', str)
    return array
# Driver code
str = "adbv345hj43hvb42"
array = getNumbers(str)


345 43 42
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