root_elem = etree.fromstring(rsp_data) namespaces = {'module-management' : 'urn:huawei:yang:huawei-module-management'} cur_mod_patch_files = [] node_path = 'module-management:module-management/module-management:module-infos/module-management:module-info' elems = root_elem.findall(node_path,...
from module import xx from module.xx.xx import xx as rename from module.xx.xx import *#不推荐使用;#!/usr/bin/env python # -*- coding:utf-8 -*- # __Author__:Administrator # Version:python3.6.5 # Date:2018/5/27 0027 10:43 "" """ 格式: 1、import module 2、from module import...
import ...导入 >>> from foo import hello >>> from foo import hi # 上面的导入方式可以写成下面: >>> from foo import hello, hi # 这种方式和上面的方式功能是一样的 import使用连续导入多个模块时,如果多个模块功能相似或者属于同一个系列时推荐使用。
Traceback (most recent call last): File "/Users/liuxiaowei/PycharmProjects/路飞全栈/day09/2.读文件.py", line 2, in <module> file_object = open('infower.txt', mode='rt', encoding='utf-8') FileNotFoundError: [Errno 2] No such file or directory: 'infower.txt' 1. 2. 3. 4. ...
import numpy as np 1.数据创建函数 Demo: data = [1.1,2.2,3.3] data = np.array(data) print data #[ 1.1 2.2 3.3] print data.dtype #float64 print data.shape #(3L,) data = data*10 #不同于python里面列表的运算 print data #[ 11. 22. 33.] ...
在Python 中用 import 或者 from...import 来导入相应的模块: 将整个模块 (somemodule) 导入,格式为: import somemodule 从某个模块中导入某个函数,格式为: from somemodule import somefunction 从某个模块中导入多个函数,格式为: from somemodule import firstfunc, secondfunc, thirdfunc 将某个模块中的全部...
类:使用大驼峰式命名法(UpperCamelCase),每个单词首字母大写,如 UserProfile。 class UserProfile: def __init__(self, first_name, last_name): self.first_name = first_name self.last_name = last_name 模块:模块名应使用小写字母和下划线,如 my_module.py。
In your Python script, import the Pyxel module, specify the window size with theinitfunction, and then start the Pyxel application with therunfunction. importpyxelpyxel.init(160,120)defupdate():ifpyxel.btnp(pyxel.KEY_Q):pyxel.quit()defdraw():pyxel.cls(0)pyxel.rect(10,10,20,20,11)pyxel...
fromoperatorimportitemgetter# (first name, last name, score) tuplesgrade=[('Freddy','Frank',3),('Anil','Frank',100),('Anil','Wang',24)]sorted(grade,key=itemgetter(1,0))# [('Anil', 'Frank', 100), ('Freddy', 'Frank', 3), ('Anil', 'Wang', 24)]sorted(grade,key=itemgetter...
To delete a file: os.remove(path) # delete a file os.rmdir(path) # short for remove directory, delete an empty directory shutil.rmtree(path) # short for remove tree, delete a directory containing files(dangerous) Copy file: Import module shutil, using 3 basic functions to copy a file:...