Auto Updates Phteven based on GitHub commit messages

Phteven.py

import requests
import zipfile
import os
import shutil
import json
import time
import sys

def unzip(source_filename, dest_dir):
  with zipfile.ZipFile(source_filename) as zf:
    zf.extractall(dest_dir)

def delete(filename):
  if os.path.isfile(filename):
    os.remove(filename)
  if os.path.isdir(filename):
    shutil.rmtree(filename)

def downloadFile(url) :
  localFilename = url.split('/')[-1]
  with open(localFilename, 'wb') as f:
    start = time.clock()
    r = requests.get(url, stream=True)
    total_length = r.headers.get('content-length')
    dl = 0
    lastnur = 0
    if total_length is None:
      f.write(r.content)
    else:
      for chunk in r.iter_content(1024):
        dl += len(chunk)
        f.write(chunk)
        done = int(100 * dl / int(total_length))
        if not done == lastnur:
          sys.stdout.write("\r[%s%s] %s%%" % ('=' * done, ' ' * (100-done), done))
          lastnur = done
  return (time.clock() - start)

def qPut(file, string):
  with open(file, "w") as f:
    f.write(string)

def qGet(file):
  with open(file, "r") as f:
    return f.read()

r = requests.get("https://api.github.com/repos/thinkofdeath/steven/commits")
print("5 Recent commits:")
jr = r.json()
print("\t" + jr[0]["commit"]["message"])
print("\t" + jr[1]["commit"]["message"])
print("\t" + jr[2]["commit"]["message"])
print("\t" + jr[3]["commit"]["message"])
print("\t" + jr[4]["commit"]["message"] + "\n")

if not qGet("commit") == jr[0]["commit"]["message"]:
  qPut("commit", jr[0]["commit"]["message"])
  print("Downloading phteven zip")
  timedone = downloadFile('http://ci.thinkofdeath.co.uk/guestAuth/repository/download/Steven_Client/.lastSuccessful/windows_amd64.zip')
  print("\nDone! " + str(timedone)[:4] + "s\n")

  print("Unzipping phteven zip")
  unzip("windows_amd64.zip", ".")

  print("Deleting phteven zip\n")
  delete("windows_amd64.zip")

print("Running phteven!")
os.system("steven.exe")