python setup py example

An example of using Python to read, write, and decompress files, Read/write filesFirst, let's look at an example: F = open('thefile.txt ', 'w') # Open in write mode. try: f. write ('wokao') finally: f. close () File opening method: F = open ('file', 'Mode') 'r': Read-Only (default. If the file does not exist, an error is thrown.) 'W': Write-only (if the file does

Example of how to use the sets module in python: pythonsets The examples in this article briefly describe how to use the sets module in python and share it with you for your reference. The specific method is as follows: Import sets magic_chars = sets. Set ('Abracadabra ') print magic_chars poping_chars = sets. Set ('others') print poping_chars print "". join (

Use the example to explain how to optimize the database query by using the prefetch_related () function in the Django framework in Python, pythondjango Instance background Assume that the Personal Information System must record the home, residence, and city of each individual in the system. The database design is as follows: The content of Models. py is as follo

This example describes the Python callback function usage. Share to everyone for your reference. The specific analysis is as follows: There is always a certain interface between software modules, which can be divided into three categories: synchronous invocation, callback and asynchronous invocation. A synchronous call is a blocking call that is returned when the caller waits for the execution to complete

This article mainly introduces the usage of multithreading in python, including core issues such as thread creation and synchronization, which has good reference value, for more information about the usage of multithreading in Python, see the following example. it is widely used in Python programming. Share it with you

This example describes the Python pyunit unit test, which is similar to the Erlang eunit unit test, and shares it for everyone's reference. Here's how: The 1.widget.py file is as follows: Copy the Code code as follows:#!/usr/bin/python # Filename:widget.py Class Widget:def __init__ (self, size = (40, 40)):Self.size = Sizedef getsize (self):Return self.sizedef r

This example describes the use of Python callback functions. Share to everyone for your reference. The specific analysis is as follows: One, Baidu encyclopedia on the callback function explanation: A callback function is a function called by a function pointer. If you pass the pointer (address) of a function to another function as an argument, when the pointer is used to call the function it points to, we

Python: example of how to request and decompress data from the server. This example describes how to request and decompress data from the server in Python. We will share this with you for your reference. The details are as follows: Request to the server to compress the data format and decompress the data #! /Usr/bin/en

This example describes the Python pickle module usage. Share to everyone for your reference. The specific analysis is as follows: The pickle provides a simple persistence feature. You can store the object as a file on disk. Pickle.dump (obj, file[, Protocol]) Serializes the object and writes the resulting data stream to the file object. The parameter protocol is a serialization mode with a default value of

') Bb=pickle.load (f) f.close () bb.show () If you do not comment out del person, then the error will be as follows: ? 1 2 3 4, 5 6 7 8 9 10 11 12 13 14 15 >>> jgood_2 Traceback (most recent): File "c:/py/test.py", line, in This means that the current module cannot find the definition of the class. Clear_memo () Empty Pickler's "memo". Using the Pickler instance, when serializing an object, it "remembers" the

This article describes how to use the yield generator in Python, including its example in multi-threaded multiprocess! If you need it, you can refer to yield for the meaning of generation. However, in python, yield is used as a generator for understanding. it is mainly useful for iteration, this simplifies a lot of computational models (not very familiar with how

This article mainly introduces the usage of _ call _ in Python. You can refer to the example in this article to describe the usage of _ call _ in Python, share it with you for your reference. The specific method is as follows: Let's take a look at the following sample code: # Call. py when a class is loaded. Class Ne

Python smallseg word segmentation usage Example Analysis This example describes how to use the Python smallseg word segmentation function. Share it with you for your reference. The specific analysis is as follows: ? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

Python smallseg word segmentation usage Example Analysis, pythonsmallseg This example describes how to use the Python smallseg word segmentation function. Share it with you for your reference. The specific analysis is as follows: # Encoding = UTF-8 # import psyco # psyco. full () words = [x. rstrip () for x in open ("m

Python verification code based on Django (example), djangopython Verification Code On the user registration and logon page, you can add the verification code function to prevent brute-force requests. If the verification code is incorrect, you do not need to proceed with the verification code. This reduces the pressure on some servers. Verification Code is also an effective method to prevent crsf The verific

Sometimes you need to use JAVA to directly call the python script to execute some server monitoring tasks. This article provides an example code for java to directly call a python script: Import java. io. BufferedReader;Import java. io. InputStreamReader; Public class Main {Public static void main (String [] args ){Try {System. out. println ("start ");Process

Python paramiko module implements remote control and transmission. For example, pythonparamiko This article describes how to implement remote control and transmission in the paramiko module of python: 1 Installation sudo pip install paramiko 2 ssh remote control # Execute shellssh username @ ip in LINUX # enter the password to operate on the remote machine ssh us

This article mainly introduces the example of port forwarding and redirection implemented by Python under the TCPIP protocol. it is demonstrated by a webpy site with two-way communication ports on the local machine. if you need a friend, refer to the following, we use webpy to write a simple website, listen to port 8080, and return the "Hello, EverET.org" page. Then we use our forwarding.

This article mainly introduces the usage of local and global namespaces in Python, and analyzes the usage skills of Python namespaces, for more information about how to use Python local and global namespaces, see the following example. Share it with you for your reference. The details are as follows: X = 1def fun

=pickle.load (f) f.close () bb.show () If the Del person is not commented out, then the error is as follows: >>> jgood_2 Traceback (most recent): File ' c:/py/test.py ', line, This means that the current module cannot find the definition of the class. Clear_memo () Empty the Pickler "Memo". When serializing an object using an Pickler instance, it "remembers" the object reference that has already been serialized, so the dump (obj) is called multiple t