CodePattern/语言特性/装饰/tf-19B.py

import time
import cppy.cp_util as util


# 工具函数
def extract_words(path_to_file):    
    return util.extract_file_words(path_to_file)

def frequencies(word_list):
    return util.get_frequencies(word_list)

def sort(word_freq):
    return util.sort_dict(word_freq)

# 闭包
def profile(f):
    def profilewrapper(*arg, **kw):
        start_time = time.time()
        ret_value = f(*arg, **kw)
        elapsed = time.time() - start_time
        print(f"{f.__name__} took {elapsed} s")
        return ret_value
    return profilewrapper

# 装饰
tracked_functions = [extract_words, frequencies, sort]
for func in tracked_functions:
    globals()[func.__name__] = profile(func) # 自省


if __name__ == "__main__":
    word_freqs = sort( frequencies(extract_words( util.testfilepath )) )
    util.print_word_freqs(word_freqs)