Attempt to get codepen.io projects via links [FAILED]

get_codepens.py

import os
import re
import requests
from fake_useragent import UserAgent


def createFolder(directory):
    try:
        if not os.path.exists(directory):
            os.makedirs(directory)
    except OSError:
        print ('Error: Creating directory. ' +  directory)


def all_files(path):
	files = os.listdir(path)
	for file in files:
		if os.path.isfile(file):
			#print file.split('_')[0]
			f=open(file,'r')
			for x in f:
				s = re.findall(r'(https?://codepen.io/[A-Za-z/]+)', x)
				if s != []:
					print(s[0])
					url = s[0]
					
					headers = {'User-agent': ua.random}
					r = ses.get(url + ".html", headers=headers)
					print r.content
					open(file.split('_')[0] + '.html', 'wb').write(r.content)


ua = UserAgent()
ses = requests.Session()
all_files('.')