gistfile1.txt

#!/usr/bin/env python

from BeautifulSoup import BeautifulSoup
import tempfile
import shutil
import zipfile
import requests
import StringIO
import re

url = 'https://releases.hashicorp.com/terraform/'
r = requests.get(url)
soup = BeautifulSoup(r.text)

max_version = (0, 0, 0)
max_version_link = None
for a in soup.findAll('a'):
    match = re.match("/terraform/(\d+\.\d+\.\d+)/", a['href'])
    if match is not None:
        version = tuple(int(part) for part in match.group(1).split('.'))
        if version > max_version:
            max_version = version
            max_version_link = match.group(0)

print("Identified max version as {0}".format(max_version))

r = requests.get("https://releases.hashicorp.com{0}".format(max_version_link))
soup = BeautifulSoup(r.text)
link = next((a['href'] for a in soup.findAll('a') if a['href'].endswith('darwin_amd64.zip')), None)
url = "https://releases.hashicorp.com{0}".format(link)

print("Downloading {0}".format(url))

r = requests.get(url, stream=True)
z = zipfile.ZipFile(StringIO.StringIO(r.content))
z.extract('terraform', '/usr/local/bin')