Accessing attributes of classes and methods in Python AST

[Leeman]

I have written some codes to count number of attributes in classes and methods of a module but I'm not getting results. I'll be glad to get assistance. Perhaps there's something I'm doing wrongly or not doing at all. Here's the codes:

# To count the attributes in a Class and Method

import ast


class ClassAttributes(object):
    def __init__(self, node):
        self.node = node
        self.loc_in_module = 0
        self.loc_in_class = 0

    def get_attribute_names(self):
        for cls in self.node.body:

            if isinstance(cls, ast.ClassDef):
                self.loc_in_class += 1
                print('Class {}'.format(self.loc_in_class))

                self.loc_in_method = 0
                if isinstance(cls, ast.Attribute) or isinstance(cls, ast.Assign):
                    
                    for target in target.targets:
                        print('{} Atrribute: {}'.format(str(cls.lineno), target))

                for node in ast.walk(cls):
                    if isinstance(node, ast.FunctionDef):
                        self.loc_in_method += 1
                        print('Method {}'.format(self.loc_in_method))
                        if isinstance(node, ast.Attribute) or isinstance(node, ast.Assign):
                       
                            for target in target.targets:
                                print('{} Atrribute: {}'.format(str(node.lineno), target))


if __name__ == '__main__':
    filename = 'test.py'

    with open(filename, 'r') as pyfile:
        data = pyfile.read()
        pyfile.close()
        tree = ast.parse(data)


    v = ClassAttributes(tree)
    v.get_class_attribute_names()

[ccc]

Does not solve your problem but..

isinstance() can take a tuple as the second parameter so...

if isinstance(node, ast.Attribute) or isinstance(node, ast.Assign):
    pass
# can be rewritten as:
if isinstance(node, (ast.Attribute, ast.Assign)):
    pass

Also, when you with open() a file, you do not need to .close() that file.

[ccc]

Instead of using ast, you might consider using inspect.get_members() like in https://github.com/cclauss/Ten-lines-or-less/blob/master/platform_info.py

dir() is also usable for quick and dirty scripts.