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93 lines
3.1 KiB
93 lines
3.1 KiB
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import site
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import os,re,time
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import string,operator
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################################################################################
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# 变量
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################################################################################
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testfilename = 'test.txt'
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testfilename = 'pride-and-prejudice.txt'
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testfilename = 'Prey.txt'
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db_filename = "tf.db"
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site_packages = site.getsitepackages()
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for package in site_packages:
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if 'package' in package:
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basePath = package
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stopwordfilepath = os.path.join(basePath, 'cppy','data','stop_words.txt')
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testfilepath = os.path.join(basePath, 'cppy','data',testfilename )
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################################################################################
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# 项目函数
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################################################################################
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def read_file(path_to_file):
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with open(path_to_file,encoding='utf-8') as f:
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data = f.read()
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return data
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def re_split( data ):
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pattern = re.compile('[\W_]+')
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data = pattern.sub(' ', data).lower()
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return data.split()
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def get_stopwords( path_to_file = stopwordfilepath ):
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with open(path_to_file,encoding='utf-8') as f:
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data = f.read().split(',')
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data.extend(list(string.ascii_lowercase))
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return data
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def get_chunks( file_path = testfilepath, chunk_size = 1000):
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# 读取文件内容，分割文件内容为多个块，每个块由一个进程处理
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# 可以根据实际情况调整块大小
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content = re_split(read_file(file_path))
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chunks = [content[i:i + chunk_size] for i in range(0, len(content), chunk_size)]
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return chunks
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def extract_file_words(path_to_file):
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word_list = re_split( read_file(path_to_file) )
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stop_words = get_stopwords()
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return [ w for w in word_list if ( not w in stop_words ) and len(w) >= 3 ]
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def extract_str_words(data_str):
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word_list = re_split( data_str )
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stop_words = get_stopwords()
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return [ w for w in word_list if ( not w in stop_words ) and len(w) >= 3 ]
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def count_word(word, word_freqs, stopwords):
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if word not in stopwords:
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word_freqs[word] = word_freqs.get(word, 0) + 1
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def get_frequencies(word_list):
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word_freqs = {}
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for word in word_list:
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word_freqs[word] = word_freqs.get(word, 0) + 1
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return word_freqs
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def sort_dict (word_freq):
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return sorted(word_freq.items(), key=operator.itemgetter(1), reverse=True)
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# return sorted( word_freq, key=lambda x: x[1], reverse=True )
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def print_word_freqs( word_freqs, n = 10):
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for (w, c) in word_freqs[ :n ]:
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print( w, '-', c )
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################################################################################
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# 通用工具
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################################################################################
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def timing_decorator(func):
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def wrapper(*args, **kwargs):
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start_time = time.time() # 记录开始时间
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result = func(*args, **kwargs) # 调用原始函数
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end_time = time.time() # 记录结束时间
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run_time = end_time - start_time # 计算运行时间
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print(f"{func.__name__} 运行时间: {run_time*1000:.2f} 秒")
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return result
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return wrapper
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def test():
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print( 'cppy welcome' ) |