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This article describes how to use python to generate executable windows.ProgramAnd port it to other environments without python. The previous article briefly introduced how to package the command line program: Windows environment, Python package the command line program. The program list is as follows: E: \ projects_python \ simplewindow \ window. pyw (sour

Python self-study day-Two day (2)-python-list-tuples-dictionary, python- ListFormat: name = []Name = [name1, name2, name3, name4, name5] # List operations Name. index ("name1") # query the name of the specified value. count ("name1") # query the name of the total number of specified values. clear ("name") # clear the list name. reverse ("name") # reverse the List

Python learning notes (14) Python class (1), learning notes python class Basic Concepts Problem Space: The problem space is the full understanding of a problem. It is composed of the information contained in the problem and the stored information. Initial status: incomplete information or unsatisfactory status at the beginning; Target status: the desired informat

Full-stack Python development: python Assignment Method, python Assignment MethodChained assignment A = 1b = 1c = 1 # For variables with the same value, the following method can be used to assign a value for a = B = c = 1 print (id (a), a) print (id (B), B) together) print (id (c), c) Result: Cross assignment # Swap m, n value m = 1n = 2 # general method te

Python learning notes (10) Python collection (3) and python learning notes Set operation Relationship between elements and sets The relationship between elements and a set is to determine whether an element is a member of a set. "A" in aset 1 >>> s = set ([1, 2, 3, 4]) 2 >>> 1 in s # Return true is a member of the Set 3 True4 >>> 6 in s # Return false is not a me

Python: process operations in python programs, python program process operations I. multi-process application import socketfrom multiprocessing import Processdef talk(conn): conn.send(b'connected') ret = conn.recv(1024) print(ret)if __name__ == '__main__': sk = socket.socket() sk.bind(('127.0.0.1', 8080)) sk.listen() while True: conn,a

will be translated, and then need to constantly contact some new framework, need to see the latest documents, need to go to GitHub to contribute to the code to communicate with people, to stack Overflow problem, and so on, of course, the ability of English is not a day can improve, at this time can find a translation software, see more, reading ability will slowly improve.Have the ability to log on to foreign academic sites, after all, in the domestic some reasons you know, encounter problems c

operations:For key, value in X.items (): Print key, ' = ', valuePrint x.get (' name ', ' not present ')Print X.setdefault (' Naem ', ' 20 ')Print X.keys (), X.values ()X.update ({1: ' A ', 2: ' B ', 3: ' C '}) #参数中的字典会更新x的值, no then insert, overwriteX.clear ()Collection:Collections are unordered, non-repeating, elements are immutable, index and slice operations are not supportedVariable Set SetImmutable Collection FrozensetCreate a collection: Using the Factory function set () and Fronzens

Round () There are some differences between py2 and Py3With the default precision, the data type of the round return value changes :Py2>>> Round (2.6)3.0>>> >>> type (round (2.6))'float 'Py3>>> Round (2.6)3>>> >>> type (round (2.6))class' int 'This rounding problem seems to be still there.>>> round (2.3555, 3)2.356>>> >>> round (2.355, 2)Meet a change record one.[Python Basics] The difference between Python

Basic Python and python tutorialsCGI CGI is currently maintained by NCSA. NCSA defines CGI as follows: CGI (Common Gateway Interface) and general Gateway Interface. It is a program that runs on a server such as an HTTP server, provides the same HTML page interface as the client. CGI programs can be Python scripts, Perl scripts, Shell scripts, C or C ++ programs.

Basic Python and python tutorialsCGI CGI is currently maintained by NCSA. NCSA defines CGI as follows: CGI (Common Gateway Interface) is a Common Gateway Interface. It is a program that runs on a server such as an HTTP server and provides an Interface for HTML pages of the same client. CGI programs can be Python scripts, Perl scripts, Shell scripts, C or C ++ pr

Python source code analysis Note 3-Python execution PrinciplePython source code analysis Note 3-Python execution Principle The book address: http://www.jianshu.com/p/03af86845c95 I have written several source code analysis notes before. However, if I feel that I have not understood the python execution principle fro

Today, there are almost 600 programming languages around the world, but popular programming languages are so 20来. If you've ever heard of the Tiobe leaderboard, you can see how popular the programming language is. Is the most commonly used in the last 10 years of the 10 programming language change diagram: Common programming languages are different, each has its own merits. Today, Python is a high-level scripting language that combines explanatory,

Getting started with Python in 30 minutes-data type and control structure, python Data Type Python is a scripting language and I have heard of it for a long time, but it is the first time that the real system came into contact with me from the end of last year (2013) to the beginning of this year (2014. I have to say that Pyt