code: def _install_packages(path, packages):
      
      def _filter_blacklist(package):
          blacklist = ['-i', '#', 'Python==', 'python-lambda==']
          return all(package.startswith(entry) is False for entry in blacklist)
      filtered_packages = filter(_filter_blacklist, packages)
      for package in filtered_packages:
          if package.startswith('-e '):
              package = package.replace('-e ', '')
  
          print('Installing {package}'.format(package=package))
          subprocess.check_call([sys.executable, '-m', 'pip', 'install', package, '-t', path, '--ignore-installed'])
      print ('Install directory contents are now: {directory}'.format(directory=os.listdir(path)))
docs: Install all packages listed to the target directory.
  
      Ignores any package that includes Python itself and python-lambda as well
      since its only needed for deploying and not running the code
  
      :param str path:
          Path to copy installed pip packages to.
      :param list packages:
          A list of packages to be installed via pip.