human
Solve the following python programming problem given the following code:
def parse_command_line() : 
    args_parser = argparse.ArgumentParser () 
    def check_source_dir(glob_pattern) : 
        sdk.print_box (('Sources discovery for %r...' % glob_pattern)) 
        sources_pattern = os.path.join (HERE, 'sources', glob_pattern) 
        sources_pattern_platform = os.path.join (sdk.platform_root ('sources'), glob_pattern) 
        globs = (glob.glob (sources_pattern) + glob.glob (sources_pattern_platform)) 
        candidates = [d for d in globs if os.path.isdir (d)] 
        if (len (candidates) == 1) : 
            return candidates [0] 
else : 
            if (len (candidates) > 1) : 
                argparse.ArgumentTypeError (('Too many candidates for %s: %s' % (glob_pattern, ', '.join (candidates)))) 
else : 
                argparse.ArgumentTypeError (('%r not found, provide an existing folder' % glob_pattern)) 
args_parser.add_argument ('-d', '--debug', action = 'store_true') 
    args_parser.add_argument ('-k', '--shell', action = 'store_true', help = 'starts a shell just before starting the build') 
    args_parser.add_argument ('-m', '--only-merge', action = 'store_true', help = 'Merge user provided files from ./merge') 
    args_parser.add_argument ('-n', '--only-scripts', action = 'store_true', help = 'Skip build step, update install scripts only') 
    args_parser.add_argument ('-p', '--profile', type = sdk.maybe (sdk.ajson, { 
        
}), help = 'json config file for Qt build') 
    args_parser.add_argument ('-r', '--install-root', help = 'default: %(default)s', type = sdk.mkdir, default = os.path.join (HERE, '_out')) 
    args_parser.add_argument ('-c', '--with-icu-sources', type = sdk.adir) 
    args_parser.add_argument ('-t', '--with-pyqt-sources', type = sdk.adir) 
    args_parser.add_argument ('-q', '--with-qt-sources', type = sdk.adir) 
    args_parser.add_argument ('-s', '--with-sip-sources', type = sdk.adir) 
    args_parser.add_argument ('packages', metavar = 'PACKAGES', nargs = '*', choices = ['sip', 'qt', 'pyqt', 'icu', 'all'], default = 'all', help =...

    
    

    Fix the buggy line: if (not check_source_dir.profile) :
assistant
#Here is Python code to fix the buggy line: if (not check_source_dir.

if (not args.profile) :