human
Solve the following python programming problem given the following code:
def get_url(self, url, dest, makedirs = False, saltenv = 'base', no_cache = False, cachedir = None) : 
    '
        Get a single file from a URL.
        ' 
    url_data = urlparse (url) 
    if (url_data.scheme in ('file', '')) : 
        if (not os.path.isabs (url.path)) : 
            raise CommandExecutionError ("Path '{0}' is not absolute".format (url_data.path)) 
return url_data.path 
if (url_data.scheme == 'salt') : 
        return self.get_file (url, dest, makedirs, saltenv, cachedir = cachedir) 
if dest : 
        destdir = os.path.dirname (dest) 
        if (not os.path.isdir (destdir)) : 
            if makedirs : 
                os.makedirs (destdir) 
else : 
                return '' 
else : 
        if (not no_cache) : 
            dest = self._extrn_path (url, saltenv, cachedir = cachedir) 
            destdir = os.path.dirname (dest) 
            if (not os.path.isdir (destdir)) : 
                os.makedirs (destdir) 
if (url_data.scheme == 's3') : 
        try : 
            def s3_opt(key, default = None) : 
                'Get value of s3.<key> from Minion config or from Pillar' 
                if (('s3.' + key) in self.opts) : 
                    return self.opts [('s3.' + key)] 
try : 
                    return self.opts ['pillar'] ['s3'] [key] 
except (KeyError, TypeError) : 
                    return default 
salt.utils.s3.query (method = 'GET', bucket = url_data.netloc, path = url_data.path [1 :], return_bin = False, local_file = dest, action = None, key = s3_opt ('key'), keyid = s3_opt ('keyid'), service_url = s3_opt ('service_url'), verify_ssl = s3_opt ('verify_ssl', True), location = s3_opt ('location')) 
            return dest 
except Exception as exc : 
            raise MinionError ('Could not fetch from {0}. Exception: {1}'.format (url, exc)) 
if (url_data.scheme == 'ftp') : 
        try : 
            ftp = ftplib.FTP (url_data.hostname) 
            ftp.login () 
            with salt.utils.fopen (dest, 'wb') as fp_ : 
                ftp.retrbinary ('RETR...

    
    

    Fix the buggy line: if (not os.path.isabs (url.path)) :
assistant
#Here is Python program to fix the buggy line: if (not os.

if (not os.path.isabs (url_data.path)) :