Scraping of protected email

From the CF tag, in your supplied html, I assume you are scraping a cloudflare site. They offer a feature to obfuscate emails listed (see here) which encrypts the addresses in the HTML and using JavaScript decrypts them. Hence, using selenium you'll see email-addresses but using requests you won't.

Since the decryption method can be easily taken from the JavaScript, you can write your own decryption method in Python.

In JavaScript,

(function () {
    try {
        var s, a, i, j, r, c, l = document.getElementById("__cf_email__");
        a = l.className;
        if (a) {
            s = '';
            r = parseInt(a.substr(0, 2), 16);
            for (j = 2; a.length - j; j += 2) {
                c = parseInt(a.substr(j, 2), 16) ^ r;
                s += String.fromCharCode(c);
            }
            s = document.createTextNode(s);
            l.parentNode.replaceChild(s, l);
        }
    } catch (e) {}
})();

In Python,

def decodeEmail(e):
    de = ""
    k = int(e[:2], 16)

    for i in range(2, len(e)-1, 2):
        de += chr(int(e[i:i+2], 16)^k)

    return de

Code In all Languages is here:

Javascript

function cfDecodeEmail(encodedString) {
    var email = "", r = parseInt(encodedString.substr(0, 2), 16), n, i;
    for (n = 2; encodedString.length - n; n += 2){
        i = parseInt(encodedString.substr(n, 2), 16) ^ r;
        email += String.fromCharCode(i);
    }
    return email;
}

console.log(cfDecodeEmail("543931142127353935313e352e7a373b39")); // usage

Python

def cfDecodeEmail(encodedString):
    r = int(encodedString[:2],16)
    email = ''.join([chr(int(encodedString[i:i+2], 16) ^ r) for i in range(2, len(encodedString), 2)])
    return email

print cfDecodeEmail('543931142127353935313e352e7a373b39') # usage

PHP

function cfDecodeEmail($encodedString){
  $k = hexdec(substr($encodedString,0,2));
  for($i=2,$email='';$i<strlen($encodedString)-1;$i+=2){
    $email.=chr(hexdec(substr($encodedString,$i,2))^$k);
  }
  return $email;
}

echo cfDecodeEmail('543931142127353935313e352e7a373b39'); // usage

GO

package main

import (
    "bytes"
    "strconv"
)

func cf(a string) (s string) {
    var e bytes.Buffer
    r, _ := strconv.ParseInt(a[0:2], 16, 0)
    for n := 4; n < len(a)+2; n += 2 {
        i, _ := strconv.ParseInt(a[n-2:n], 16, 0)
        e.WriteString(string(i ^ r))
    }
    return e.String()
}

func main() {
    email := cf("543931142127353935313e352e7a373b39") // usage
    print(email)
    print("\n")
}

C++

#include <iostream>
#include <string>

using namespace std;

string cfDecodeEmail(string encodedString);

int main()
{
    cout << cfDecodeEmail("543931142127353935313e352e7a373b39") << endl;
}

string cfDecodeEmail(string encodedString)
{
    string email;
    char xorKey = stoi( encodedString.substr(0, 2), nullptr, 16);
    for( unsigned i = 2; i < encodedString.length(); i += 2)
        email += stoi( encodedString.substr(i, 2), nullptr, 16) ^ xorKey;

    return email;
}

C#

using System;

public class Program
{
    public static string cfDecodeEmail(string encodedString)
    {
        string email = "";
        int r = Convert.ToInt32(encodedString.Substring(0, 2), 16), n, i;
        for (n = 2; encodedString.Length - n > 0; n += 2)
        {
            i = Convert.ToInt32(encodedString.Substring(n, 2), 16) ^ r;
            char character = (char)i;
            email += Convert.ToString(character);
        }

        return email;
    }

    public static void Main(string[] args)
    {
        Console.WriteLine(cfDecodeEmail("543931142127353935313e352e7a373b39")); // usage
    }
}

According to above algorithm, I wrote code in Ruby to parse [protected email] with nokogiri

def decode_email(e)
  r = Integer(e[0,2], 16)
  (2..e.length - 2).step(2).map do |j|
    c = Integer(e[j,2], 16) ^ r
    c.chr
  end.join('')
end