download_url = 'https://script-downloads.itarian.com/Globalprotect/GlobalProtect64-6.1.0.msi' ## provide your download url here
download_path = 'C:\\Windows\\Temp\Globalprotect' ## provide your path here where the file has to been downloaded
file_name = 'GlobalProtect64-6.1.0.msi' ## provide your file name with extention

import os
import subprocess
import ctypes
import urllib2
import ssl

if os.path.exists(download_path):
    pass 
else:
    os.makedirs(download_path)

class disable_file_system_redirection:
    _disable = ctypes.windll.kernel32.Wow64DisableWow64FsRedirection
    _revert = ctypes.windll.kernel32.Wow64RevertWow64FsRedirection
    def __enter__(self):
        self.old_value = ctypes.c_long()
        self.success = self._disable(ctypes.byref(self.old_value))
    def __exit__(self, type, value, traceback):
        if self.success:
            self._revert(self.old_value)
with disable_file_system_redirection():

    def download(fromURL,DownTo):
        print('File Downloading......')
        headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36'}
        context = ssl._create_unverified_context()
        request = urllib2.Request(fromURL, headers=headers)
        req = urllib2.urlopen(request,context=context)
        try:
            with open(DownTo, 'wb') as f:
                while True:
                    chunk = req.read(100*1000*1000)
                    if chunk:
                        f.write(chunk)
                    else:
                        break
            if os.path.isfile(DownTo):
                print("File Downloaded...")
                return "Success"
        except:
            return 'Please Check URL or Download Path!'

    def install(cmd,path,filename):
        os.chdir(path)
        obj = subprocess.Popen(cmd, shell=True, stdout = subprocess.PIPE, stderr = subprocess.PIPE)
        out, err = obj.communicate()
        if err:
            print(err)
        else:
            print(filename+' installed successfully...')
            return "Success"

    src_path = download_path+'\\'+file_name
    Download = download(download_url,src_path)
    if Download == "Success":
        command = 'msiexec /i "'+src_path+'" /quiet PORTAL="prisma.dfpi.ca.gov"'
        Install = install(command,download_path,file_name)
        if Install == "Success":
            pass 
        else:
            print("Error occurred while installing...!")
    else:
        print("Error occurred while downloading the file...!")