toaco

import importlib
import pkgutil

for loader, name, is_pkg in pkgutil.walk_packages(__path__):
    importlib.import_module('.{}'.format(name), 'models')

toaco

# encoding=utf8
from decimal import Decimal


def create_ladders(price_name, last_reading, current_reading, price):
    """ 目前不考虑优惠，但是可以合计金额里面体现出来
        ladder['price_name'] = price_name
        ladder['last_reading'] = last_reading
        ladder['current_reading'] = current_reading
        ladder['gas'] = current_reading - last_reading

toaco

import datetime

import arrow


def diff_month(d1, d2):
    return (d1.year - d2.year) * 12 + d1.month - d2.month


def calc_current_period(start_date, period, now=None, unit='months'):

toaco

功能

• 对象转换器，提供load_xxx/dump_xxx方法
• 对象验证器，定义一个模式，判断一个Python对象是否符合该模式. validate
• 对象生成器，generate
• 提供其他库的插件:
  • flask/django等Web框架的表单验证插件
  • pymongo 扩展

对象验证

目标在于提供Pythonic的对象验证方式，如：

toaco

# -*- coding: utf-8 -*-
import datetime
from collections import defaultdict

FLIGHTS = {
    "chengdu_to_xian": {
        "reward": [
            {'name': 'GD2501', 'time': '08:00', 'price': 500, 'at_weekends': True},
            {'name': 'GD2501', 'time': '08:00', 'price': 800, 'at_weekends': False},
            {'name': 'GD2606', 'time': '12:25', 'price': 500, 'at_weekends': True},

toaco

const Decimal = require('decimal.js');

// 计算表达式的值
function calculate(expression) {
  const words = splitExpression(expression);

  const outputs = [];
  const signs = [];
  while (words.length) {
    const word = words.shift();