hxer

''.join([ '{0:08b}'.format(ord(i)) for i in src ])

hxer

def md5(fname):
    hash_md5 = hashlib.md5()
    with open(fname, "rb") as f:
        for chunk in iter(lambda: f.read(4096), b""):
            hash_md5.update(chunk)
    return hash_md5.hexdigest()

hxer

import inspect

def displayattrs(objects):
    attrs = inspect.getmembers(objects)
    for attr in attrs:
        attr = attr[0]
        filters = ['_', '__']
        if not any(map(attr.startswith, filters)):
            doc = getattr(objects, attr).__doc__
            if doc:

hxer

import os  
def randomString(n):  
    return (''.join(map(lambda xx:(hex(ord(xx))[2:]),os.urandom(n))))[0:16]  
  
print randomString(16)  


"""

os.urandom(n) : 随机生成n个字节的串，一个字节是8位，我猜是这8位二进制数是随机的，所以这个字节也是随机的。所以没有指定的编码方案可以很好地把所有这个字符串显示转换成功，即有可能会乱码

hxer

import os
# Using Flask since Python doesn't have built-in session management
from flask import Flask, session, render_template
# Our target library
import requests
import json

app = Flask(__name__)

# Generate a secret random key for the session

hxer

#!/usr/bin/env python
#-*- coding:utf-8 -*-

"""
by hx, 2015.11.24
version:python2.7.x
"""

def factorial(x):
    res = 1

hxer

# 日志打印屏幕或文件
def setup_logger_2(logger_name, level=logging.INFO, handler='all', log_file=''):
    """
    :param logger_name:
    :param log_file:
    :param level:
    :param handler: file or stream or all
    :return:
    """
    log_setup = logging.getLogger(logger_name)

hxer

# -*- coding: utf-8 -*-

# auto upgrade python package
# need root privilige

"""
import pip
from subprocess import call
for dist in pip.get_installed_distributions():
    call("pip install --upgrade " + dist.project_name, shell=True)

hxer

def is_intersection(a, b):
    '''
    input:
        a = [1, 2, 3]
        b = [3, 6, 9]
    output:
        True
    '''
    return any(_ in a for _ in b)