nginx 启动失败,日志里面报错信息如下: Starting nginx: nginx: [emerg] bind() to 0.0.0.0:**** failed (13: Permission denied) 权限拒绝,经检查发现是开启selinux 导致的。 getenforce 这...
Signature: sorted(iterable, /, *, key=None, reverse=False) Docstring: Return a new list containing all items from the iterable in ascending order. *返回一个排序后的list A custom...
给出一个序列的指定长度的所有子序列,例如序列{1,2,3,4,5,6,7,8},长度为3的子序列为{1,2,3},{1,2,4},{1,2,5},...,{2,3,4},{2,3,5},{2,3,6},...,{6,7,8}。...
管道(pipeline)是redis在提供单个请求中缓冲多条服务器命令的基类的子类。 它通过减少服务器-客户端之间反复的TCP数据库包,从而大大提高了执行批量命令的功能 import redis r = redis...
#coding : utf-8 def unpack_list(s): """将list转为字符串 替换所有'['和']',最后用eval来生成新的list""" return eval('[{}]'.format(str(s).replace('[','').replace(']',''))...
GIT传送门: http://git.oschina.net/codetimer/eluosifangkuai
> s = '(1,2,3) - (4,5,6)' > re.findall('\(.*\)',s) > ['(1,2,3) - (4,5,6)'] > re.findall('\(.*?\)',s) > ['(1,2,3)', '(4,5,6)'] 如上图,第一次直接使用 \(.*\) 去搜索字符串时,右...
Code Like a Pythonista: Idiomatic Python David Goodger goodger@python.org http://python.net/~goodger In this interactive tutorial, we'll cover many essential Python idioms and t...
try: doSomething() except: pass 或 try: doSomething() except Exception: pass 区别在于,第一种也会捕捉到 KeyboardInterrupt, SystemExit之类,它直接来自 exceptions.Bas...
""" Python 单例模式测试 """ class Dog: def __init__(self): print('init dog!') class A: __dog = None def __init__(self): self.__dog =...
# coding: utf-8 import threading import time from concurrent.futures import ThreadPoolExecutor def test(): for i in range(5): print('running thread id : %d now=%...
问题: 同时安装了python2与python3 再安装 pip3 install gunicorn 然后使用 gunicorn 会提示 command not found 在StackOverFlow上找到一个替代方案: 将下面的run_gunicorn脚本拷贝到main....
yum install wget yum install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel cd /usr/local/src wget https://www.python.org/ftp/python/3...
32 位程序获取 system32 目录时会转向SysWow64 也就是说,虽然你打开文件指明路径是 system32,但实际上打开的是 SysWoW64 下的对应文件 这个需要用到这几个 API 来控制是否进行重定向: Wo...
Flask下使用装饰器,提示错误 AssertionError: expected view func if endpoint is not provided. 详见: http://flask.pocoo.org/docs/0.12/patterns/viewdecorators/ 修改: 必须使用funct...
Python lists have a built-in list.sort() method that modifies the list in-place. There is also a sorted() built-in function that builds a new sorted list from an iterable. list类...
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