Extract email sub-strings from large document

Question

I have a very large .txt file with hundreds of thousands of email addresses scattered throughout. They all take the format:

......
         


        

Answer 1

You can also use the following to find all the email addresses in a text and print them in an array or each email on a separate line.

import re
line = "why people don't know what regex are? let me know asdfal2@als.com, Users1@gmail.de " \
       "Dariush@dasd-asasdsa.com.lo,Dariush.lastName@someDomain.com"
match = re.findall(r'[\w\.-]+@[\w\.-]+', line)
for i in match:
    print(i)

If you want to add it to a list just print the "match"

# this will print the list
    print(match)