python coding bootcamp

__init__ (self, A, B, C, D, E, f):Self.__dict__.update ({k:v for K, V in Locals (). Items () if k! = ' self '})11. For-else StatementThere are two normal ways to end a For statement: One is to break out of a loop if a particular condition is met, and the other is to end all the conditions in the loop. The Else statement in For-else is executed only if all conditions have been judged and then the for loop ends normally, as follows:For x in range (1, 10, 2):If x% 2 = = 0:Print "Found even of%d"%x

reset to the default ASCII, Then there is no way to modify the program or the system's default code at once.There are 2 ways to set the default encoding for Python:A solution is to add the following code to the program:Python code Import Sys Reload (SYS) Sys.setdefaultencoding (' UTF8 ') Another option is to create a new sitecustomize.py under the Python lib\site-packages folder, with the following:Python code # Encodin

Python Basics Coding issues in this section The origin of the string encoding problem String Encoding Solution 1. String encoding problem originSince the string encoding evolved from the ASCII--->unicode--->utf-8 (utf-16 and utf-32, etc.), and similar to China's GBK encoding, these encodings are incompatible with each other, So the written software implementation of the cross-language plat

Python2 the default encoding format is ASCII format, the Chinese characters cannot be printed correctly when the encoding format is not modified, so the error occurs when reading Chinese.The workaround is to add #-*-Coding:utf-8-*- at the beginning of the fileI add this to: #coding = UTF-8 or #coding: UTF-8 After modification:python3.x source files use utf-8 encoding by default, so you can parse Chinese nor

Python coding is a profound knowledge, and I am still bleeding python, so I am currently required to be only in their own crawl Web page to obtain Chinese information without error, only that, for other deeper content with the accumulation of knowledge presumably have a deeper understanding. The following is not my original understanding, but on the internet to r

0. PrefaceThis article is to read the "Python Coding Rule" summarizes the most elite and simple coding specifications, according to each person's preferences, some places will have different choices, I just do the most simple and easy choice for their own, for your reference only.1. Important PrinciplesA. It is important to maintain style consistency, but most im

PEP8 Python Coding SpecificationA code orchestration1 indent. Indentation of 4 spaces (the editor can do this), no tap, no mix of taps and spaces.2 The maximum length per line is 79, the line break can use backslashes, preferably with parentheses. The newline point is to hit enter after the operator.There are two empty lines between the 3 class and the top-level function definition, an empty line between th

is set to public or private, consider setting it to private, which is less expensive to modify. Private cannot be used by third parties because it may be deleted or discarded at any time, the public attribute cannot begin with an underscore Avoid attributes using large operand operations If you do not want the property inherited by the quilt class, you should start with a double underscore and not be underlined at the end. This will start Python's naming recognition corrective proce

"Phenomenon" When writing Python, the error message is prompted when you run a script with Chinese output or comments:Syntaxerror:non-ascii character ' \xe5 ' in file *******ReasonPython's default encoding file is ASCII code, and your Python file uses non-English characters such as Chinese."Solution"In the first line of the Python source file, add a sentence:#

Python2 default encoding: ASCII encoding is displayed correctly, program requires encoding conversion: UTF-8-->decode decode--unicodeunicode--> Encode code--> Gbk/utf-8 Pytho N3 default file Encoding: Utf-8 (interpreter encoding) Python3 in memory: All is the process of Unicodepython3 code execution: 1. The interpreter finds the code file, loads the code string into memory according to the encoding defined by the file header, turns into Unicode2, The code string is interpreted according to the

problem.It is common to use two bytes to represent a character (4 bytes if you want to use very remote characters). Unicode is supported directly by modern operating systems and most programming languages.Since the Unicode approach solves the conflict, that is, the need to exchange information around the world, why do we have to utf-8 this encoding method? See5.utf-8 (8-bit Unicode Transformation Format) If the information is basically all in English, Unicode encoding requires more storage spac

Python security coding and code Auditing 1 PrefaceCurrently, the general web development framework security has been quite good. For example, django is commonly used, but some nonstandard development methods will still cause some common security problems, the following is a summary of these common problems. For the preparation of code audit, see php code audit. This document mainly describes common error sc

containers: Namedtuple () # factory function, used to create a subclass of tuples with named Fields Deque # A list-like container that allows arbitrary terminals to quickly append and retrieve Counter # dict subclass for counting hash objects OrderedDict # dict subclass, used to store the added command records Defaultdict # dict subclass, used to call factory functions to supplement Missing Values 7. magic method of creating classes in Python