Regex in python, Need to print website name from a string

Question

import re

x = 'my website name is www.algoexpert.com and i have other website too'
for line in x:
    y = line.rstrip()
z = re.findall('.*\S+/.[a-z]{0-9}/.\S+', y) 
print(z)

I just want to print the website name (www.algoexpert.com)

This is a bit broad. Do you just want www.something.com or do you need to support stuff like foo.something.tk? What constitutes a "website name"? Thanks for clarifying. — ggorlen
– ggorlen, Commented Oct 28, 2019 at 16:58

RomanPerekhrest · Accepted Answer · 2019-10-28 16:58:52Z

1

Issues to fix:

x is a string itself, why are you looping over it with for line in x?
[a-z]{0-9} - tries to cover only alphabetical chars, though in wrong way (could be {0,9}). The range of chars should be [a-z0-9]+ or at least - [a-z]+ (depending on the initial intention)
dots/periods . should be escaped with backslash \.

Fixed version (simplified):

import re

x = 'my website name is www.algoexpert.com and i have other website too'
z = re.findall('\S+\.[a-z0-9]+\.\S+', x.strip())
print(z)   # ['www.algoexpert.com']

answered Oct 28, 2019 at 16:58

RomanPerekhrest

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1 Comment

user8522293 Over a year ago

Actually x = open('file.txt'). I entered here wrong. That's why i looped it. I forget i gave it a string

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