python 正则表达式用于人名

Question

hello i have tried to extract all the names from the following string:

import re
def Find(string):
    url = re.findall(r"[A-Z][a-z]+,?\s+(?:[A-Z][a-z]*\.?\s*)?[A-Z][a-z]+", string)
    return url
string = 'Arnold Schwarzenegger was born in Austria. He and Sylvester Stalone used to run a restaurant with J. Edgar Hoover.'
print(Find(string))

but i have got a problem with the output(doesnt print the J. on edgar)

['Arnold Schwarzenegger', 'Sylvester Stalone', 'Edgar Hoover']

another question for you:) i have tried to print the second string but i get a problem. i need to write a regex that print it without www or http or https like in the example:

import re
def Find(string):
    url = re.findall(r'https?://[^\s<>"]+|www\.[^\s<>"]+', string)
    return url
string = 'To learn about pros/cons of data science, go to http://datascience.net. Alternatively, go to datascience.net/2020/'
print(Find(string))

output is:

['http://datascience.net.']

thanks

Answer 1

Question 1

Here's a regex that works for that specific case of three names:

((?:[AZ]\.\s)?[AZ][az]+\s[AZ][az]+)

yields

Arnold Schwarzenegger
Sylvester Stalone
J. Edgar Hoover

Question 2

(?:http)?s?(?:\:\/\/)?(?:www.)?([Az]+\.[Az]+(?:[\./][A-z0-9]+)*\/?)

yields

http://datascience.net
datascience.net/2020/