>>>importre>>> ret_match=re.match("c","abcde")#从字符串开头匹配,匹配到返回match的对象,匹配不到返回None>>>if(ret_match):print("ret_match:"+ret_match.group())else:print("ret_match:None") ret_match:None>>> ret_search = re.search("c","abcde")#扫描整个字符串返回第一个匹配到的...
from wordcloud import WordCloud import matplotlib.pyplot as plt # 958条评论数据 with open('data.txt') as f: data = f.read() # 文本预处理 去除一些无用的字符 只提取出中文出来 new_data = re.findall('[\u4e00-\u9fa5]+', data, re.S) new_data = " ".join(new_data) # 文本分词 se...
(url) if re.match(r"\d+\.\d+\.\d+\.\d+", url_tuple.hostname): server_ip = url_tuple.hostname else: server_ip = get_addr_by_hostname(host=url_tuple.hostname) global sftp_server sftp_server = server_ip if url_tuple.port == None: server_port = SFTP_DEFAULT_PORT else: ...
importtime deftimer(func):definner(*args,**kwargs):start=time.time()re=func(*args,**kwargs)print(time.time()-start)returnrereturninner @timer #==>func1=timer(func1)deffunc1(a,b):print('in func1')@timer #==>func2=timer(func2)deffunc2(a):print('in func2 and get a:%s'%(...
Note python has this really weird error if you define local variable in a function same name as the global variable, program will promptUnboundLocalError. child class object overrides parent class methods input: classfruit:defprint(self):print('a')defeat(self):print('b')classapple(fruit):defpr...
12.1 re! 12.2 StringIO! 12.3 struct! 第 13 章 数据类型! 13.1 bisect! 13.2 heapq! 第 14 章 数学运算! 14.1 random! 第 15 章 ⽂文件与⺫⽬目录! 15.1 file! 15.2 binary! 15.3 encoding! 15.4 descriptor! 15.5 tempfile! 15.6 os.path! 15.7 os! 15.8 shutil! 第 16 章 数据存储! 16.1...
You can customize it to meet the requirements of your network environment. """ import http.client import urllib.request, urllib.parse, urllib.error import string import re import xml.etree.ElementTree as etree import os import stat import logging import traceback import hashlib import sys import ...
If you’re familiar with globals() in Python, then you might see some similarities to how the plugin architecture works. With globals(), you get access to all global variables in the current scope, including your plugins:Python >>> globals() {..., # Many variables that aren't not ...
build(deps): bump sphinx-reredirects from 0.1.5 to 0.1.6 in /docs by @dependabot in #2716 build(deps): bump certifi from 2024.8.30 to 2025.1.31 in /docs by @dependabot in #2718 build(deps): bump certifi from 2024.8.30 to 2025.1.31 in /tools/publish by @dependabot in #2719 ...
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