embassy.py

import requests
import re

# Download the HTML page
def getPage(url):
    response = requests.get(url)
    return response.text

def main():
    url = "https://travel.state.gov/content/travel/en/us-visas/visa-information-resources/list-of-posts.html"
    topPage = getPage(url)
    links = re.findall("href=\"(.+\.html)", topPage)
    for link in links:
        fullURL = 'https://travel.state.gov' + link
        page = getPage(fullURL)
        emails = re.findall("mailto: (\S+@\S+\.(gov|edu|com))", page)
        for email in emails:
            print(email[0])

main()