depends.py

# coding: utf-8

import time, os
import requests, zipfile
import shutil
from clint.textui import progress

pyqt4_link = 'https://ufpr.dl.sourceforge.net/project/pyqt/PyQt4/PyQt-4.10/PyQt4-4.10-gpl-Py2.7-Qt4.8.4-x64.exe'
ffmpeg_link = 'https://ffmpeg.zeranoe.com/builds/win64/static/ffmpeg-20190109-ed3b644-win64-static.zip'
current_dir = os.getcwd()

#Headers ( evita o erro 403 Forbidden )
hdr = {'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.64 Safari/537.11',
       'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
       'Accept-Charset': 'ISO-8859-1,utf-8;q=0.7,*;q=0.3',
       'Accept-Encoding': 'none',
       'Accept-Language': 'en-US,en;q=0.8',
       'Connection': 'keep-alive'}

def download_pkg(package):
        if package == 'ffmpeg':
                file_name = 'ffmpeg.zip'
                link = ffmpeg_link
        else:
                file_name = 'pyqt4.exe'
                link = pyqt4_link
        r = requests.get(link, stream=True, headers=hdr)
        with open(file_name, 'wb') as f:
                total_length = int(r.headers.get('content-length'))
                for chunk in progress.bar(r.iter_content(chunk_size=1024), expected_size=(total_length/1024) + 1): 
                        if chunk:
                                f.write(chunk)
                                f.flush()
                            
def extract_():
        try:
                with zipfile.ZipFile('ffmpeg.zip', 'r') as zip_ref:
                        zip_ref.extractall('ffmpeg')                
                        print "[*] Extraindo ffmpeg, aguarde ..."  
        except zipfile.BadZipfile:
                print "[*] Arquivo zip corrompido, baixando novamente ... "
                time.sleep(2)
                download_pkg('ffmpeg')
                extract_()
def copyffmpeg():
        src = 'ffmpeg/ffmpeg-20190109-ed3b644-win64-static/bin/'
        dest = current_dir + '/'
        files = os.listdir(src)
        for f in files:
            shutil.move(src+f, dest)
        print "[*] Arquivos copiados para {}".format(dest)

def main():
        k = os.path.isfile(current_dir + '/ffmpeg.exe')
        k2 = os.path.isfile(current_dir + '/ffprobe.exe')
        if k == True and k2 == True:
                print "[*] FFMPEG instalado."
        else:        
                fc = os.system(current_dir + '/ffmpeg.exe -h > NUL')
                os.system('cls')
                if fc == 1:
                        if os.path.isfile('ffmpeg.zip') == True:
                               print "[*] zip file encontrado !"
                               extract_()
                               time.sleep(3)
                               print '[*] Concluido.'
                        else:
                               print "[*] Baixando FFMPEG de --> {}".format(ffmpeg_link)
                               download_pkg('ffmpeg')
                               extract_()                    
                        copyffmpeg()
                        try:
                                os.system('del ffmpeg.zip')
                                os.system('rmdir /s /q ffmpeg')
                        except:
                                pass                        
                else:
                       print '[*] FFmpeg encontrado .'
                       pass       
        try:
               import PyQt4
        except ImportError:
               print "[*] PyQt4 nao instalado, baixando de --> {}".format(pyqt4_link)
               download_pkg('pyqt4')
               os.system('pyqt4.exe')
               print '[*] Concluido'
               print "[*] Removendo arquivo de instalacao ..."
               try:
                       os.system('del pyqt4.exe')
               except:
                       pass
        else:
                print "[*] PyQt4 instalado."

main()