comynli

def two(path):
    tmp = {}
    with open(path) as f:
        for line in f:
            k, v = line.split(',')
            k = k.strip()
            v = float(v)
            s, c = tmp.get(k, (0, 0))
            tmp[k] = (s+v, c+1)
    for k, (s, c) in tmp.items():

comynli

import java.io.IOException;
import java.lang.management.ManagementFactory;
import java.util.Set;

import javax.management.MBeanServer;
import javax.management.ObjectName;

/**
 * Print the Collector used in the program.
 * @author khotyn

comynli

# ~/.pip/pip.conf  

[global]
index-url = http://mirrors.aliyun.com/pypi/simple/
trusted-host = mirrors.aliyun.com

comynli

安装ipython 和 jupyter

• pip install ipython
• pip install jupyter

启动jupyter notebook

• jupyter notebook --ip=0.0.0.0 --no-browser

comynli

安装pyenv

1. 安装git yum -y install git

• 安装pyenv curl -L https://raw.githubusercontent.com/yyuu/pyenv-installer/master/bin/pyenv-installer | bash

• 配置环境变量， 在 ~/.bash_profile里增加如下内容

  export PATH="~/.pyenv/bin:$PATH"
  eval "$(pyenv init -)"

eval "$(pyenv virtualenv-init -)"

comynli

class Node:
    def __init__(self, value):
        self.value = value
        self.next = None
        self.prev = None


class Deque:
    def __init__(self):
        self.head = None

comynli

import subprocess
import threading

class Command(object):
    def __init__(self, cmd, out, timeout):
        self.cmd = cmd
        self.out = out
        self.timeout = timeout
        self.__event = threading.Event()
        self.proc = None

comynli

We couldn’t find that file to show.

comynli

function flatten(target, opts = {delimiter: '.'}) {
  let output = {};

  function step(object, prev = '') {
    Object.keys(object).forEach(key => {
      let value = object[key];
      let outKey = prev.length > 0? `${prev}${opts.delimiter}${key}`: key;
      if (typeof value === 'object') {
        return step(value, outKey)
      }

comynli

import hmac
import time
import struct
import base64
import hashlib

def totp_gen(secret, time_range=30, i=0):
    tm = int(time.time() / time_range)
    b = struct.pack(">q", tm + i)
    hm = hmac.HMAC(secret, b, hashlib.sha1).digest()