human
Solve the following python programming problem given the following code:
def _is_valid_name(self, project_name) : 
    def _module_exists(module_name) : 
        try : 
            import_module (module_name) 
            return True 
except ImportError : 
            return False 
if (not re.search ('^[_a-zA-Z]\\w*$', project_name)) : 
        print ('Error: Project names must begin with a letter and contain only
letters, numbers and underscores') 
else : 
        if exists (project_name) : 
            print (('Error: Directory %r already exists' % project_name)) 
else : 
            if _module_exists (project_name) : 
                print (('Error: Module %r already exists' % _module_exists)) 
else : 
                return True 
return False 

    
    

    Fix the buggy line: print (('Error: Module %r already exists' % _module_exists))
assistant
#Here is Python program to fix the buggy line: print (('Error: Module %r already exists' % _module_exists))
.

print (('Error: Module %r already exists' % project_name))