Python

ErrorPython coding error: unicodedecodeerror: ' UTF8 ' codec can ' t decodeor unicodedecodeerror: ' ASCII ' codec can ' t decode byte 0xcf in position 7:ordinal not in range (128)Consider using the following method

I. INTRODUCTIONThe module supports the logical organization of Python code.When the code is quite large, we'd better split the code into organized pieces of code, provided that they interact with each other.The operation of attaching attributes from

Reason: Yes, you should assign all attributes of your object in the __init__ method. The most important reason to does this are tool support. Many Python IDEs can see the assignments in the and use __init__ those attributes for

Beautiful is better than ugly. Explicit is better than implicit. Simple are better than Complex.complex is better than complicated. Flat is better than nested. Sparse is better than dense. Readability counts. Special cases aren ' t special enough to

9.1 File Operation Flow1. Open the file, get the file handle and assign a value to a variable2. Manipulating files with a handle3. Close the file9.2 file read-write and close operation#! Author:lanhan#data = open ("Yesterday", encoding= "Utf-8").

The test needs to build hundreds of accounts, write a script can automatically generate accounts, but want to write the generated account to a file,Start with the following write () method, the original file will be emptied and then write the

Basic concepts of 11.1 decoratorsAdorner definition: The essence is a function, the function is to decorate other functions (that is, add additional functions for other functions)principles: 1. Cannot modify the source code of the decorated function

10.1 function definition and syntaxdefinition : A function that encapsulates a set of statements by a name (function name), and to execute the function, simply call the name of its functionsFeatures: 1. Reduce duplicate code 2. Make the program

Python string-related operations 1, string lookup Name = "Today is a\t Beautiful Day" Print (Name.capitalize ()) # Initial capitalization   Print (Name.center (40, '-')) # is centered, filling '-'   when insufficient, Print (Name.count (' A ',

Now there is a requirement: to backup files in one directory to another directory, and compress the file to zip file# -*- coding:utf-8 -*-#! /usr/bin/python# Filename:backup_v1.pyimport osimport timesource = [r‘H:\StudyLib\lib‘]#

#! Author:lanhanName ="My\ tname is {name} and I ' {year} old 'Print (Name.capitalize ())#首字母大写Print (Name.count ("a"))#统计a出现次数Print (Name.center (50,"-"))#字符串在中间, both sides--paddedPrint (Name.endswith ("Han"))#判断字符串是否以 Han EndPrint

This is my homework on the college lab.Experiment Onedecomposes a positive integer factorization. For example: Enter 90 and print out 90=2*3*3*5. First of all, let's talk about my design ideas:Design ideas:1. First you need to determine whether the

One feature of functional programming is that it allows the function itself to be passed as a parameter to another function, and also allows a function to be returned.Higher-order function definition: A function can receive another function as a

Sometimes we click the button after the page will jump to a new window, we need to go to the new window to do the next operation, this time we need to switch the operation of the window, we are based on the handle (handle) to operate the switch

By mastering Python's data types, statements and functions, you can basically make a lot of useful programs.But in Python, not as much as the code, the more complex the better, the simpler the better.Based on this idea, some of the advanced features

Python data typePython contains 6 of the standard types:1.Number Numeric type2.String String Type3.List list Types4.Tuple tuple Type5.Dict Dictionary Type6.Set collection typeNote: In addition to the standard data types, Python has an unlimited

The requirements are as follows: The index and index value (value) of the iteration output sequence.1. Create a test list:>>> LST = [1,2,3,4,5]2. The implementation method is as follows:# method 1:range () +len () for inch Range (len (LST)):

In the previous program exception, we will give a hint, tell the user, why the program is abnormal, but now we want to be abnormal in the program, do not handle, let the program silently down execution, do not make a silent. So we're introducing the

PyCharm is used for the first time (Hell world !), Pycharmhell As the starting point of the PyCharm Editor, we naturally write a Hello word and run it first. (This article is intended for beginners who are not familiar with IDE.) 1. Create a project

Exception Handling, Exception Handling includes three categories: specified Exception Handling, fuzzy match exception handling, and custom exception handling. The following code shows how to use three exceptions: 1 date = [] 2 dict1 = {'name':