human
Solve the following python programming problem given the following code:
def create_install_cmd(self, packages) : 
    s = self.version_separator 
    def join_package_version(pv_item) : 
        (p, v) = (pv_item if (len (pv_item) > 1) else (pv_item [0], None)) 
        return ((((p + s) + v) + '*') if v else p) 
packages = ' '.join (map (join_package_version, join_package_version)) 
    command = '%(install_cmd)s %(packages)s' 
    args = { 
        'install_cmd' : self.install_command, 
        'packages' : packages, 
} 
    return (command % args) 

    
    

    Fix the buggy line: packages = ' '.join (map (join_package_version, join_package_version))
assistant
#Here is Python program to fix the buggy line: packages = ' '.

packages = ' '.join (map (join_package_version, packages))