Count number of classes and functions in the standard library

count_class_and_funcs.py

import ast
import os

stats = {
    'funcs':0,
    'classes':0,
    'analysed':0
}

base_path = 'C:\\Python37-32\\Lib'
excepts = 1
for root, dirs, files in os.walk(base_path):
    path = root.split(os.sep)
    if 'site-packages' in root: continue
    for filename in files:
        if filename.endswith('.py'):
            #print(len(path) * '---', file)
            filepath = os.path.abspath(os.path.join(root, filename))
            try:
                
                with open(filepath, encoding='utf8') as f:
                    tree = ast.parse(f.read())
                    funcs = sum(isinstance(exp, ast.FunctionDef) for exp in tree.body)
                    stats['funcs'] += funcs

                with open(filepath, encoding='utf8') as f:
                    tree = ast.parse(f.read())
                    classes = sum(isinstance(exp, ast.ClassDef) for exp in tree.body)
                    stats['classes'] += classes
                stats['analysed'] += 1
            except Exception as e:
                print(excepts, filepath, stats, e)
                excepts += 1

print(stats)