mt_fasta_downloader.py

import re
import time
from selenium import webdriver
from selenium.webdriver.common.keys import Keys

p = re.compile("a href=\"(.+?)\">View Sequence")
p2 = re.compile("pre>([^<]+)<", re.MULTILINE|re.DOTALL)

urls=open('sample_url') #file with urls, to download
count=0
try:
    for link in urls:
        browser=webdriver.Firefox()
        browser.get(link)
        page=browser.page_source
        new_url="http://www.jcvi.org/"+p.findall(page)[0]
        browser.close()
    
        browser=webdriver.Firefox()
        browser.get(new_url)
        page2=browser.page_source
        browser.close()
        print(p2.findall(page2)[0].replace('&gt;','>')),
        time.sleep(10)
	    count = count+1
finally:
    print(count+' lines processed')