Python

Python has powerful scalability. I have listed 50 excellent Python modules, including almost all the needs, such as databases, guis, images, sound, OS interaction, web, and others. It is recommended to add to favorites. Graphical interface

I have been watching the core programming for a while, but it is still full of fog. Today I occasionally see a buddy's note on cnblogs, which is a good summary. It is a good summary for those who have read the textbook. Python Study Notes (1):

In these two languages, the returned values of expression A and B are not true or false, but non-true values of expression a/B, it indicates that A or B returns the true one for a/B. Therefore, to simulate the ternary operator C in C/C ++? A: B. It

When there is no ide at hand and you are worried about Python debugging, you can refer to this article. (PDB command debugging)Reference: http://docs.python.org/library/pdb.htmlAnd (PDB) Help First you choose to run the pyPython-m pdb myscript. py

Requirements:You want to copy an object, because in Python, whether you pass an object as a parameter or as a function return value, it is passed by reference.Discussion:The copy module in the Standard Library provides two methods for copying. One

Learning varies from person to person, because everyone's life experiences, educational background, age, cognitive models, and so on are all different, that is, each person's "dimension" is different, the author has a kind of "building high-level

Conversion System of Python-based XML and MS Excel Test_ui.py) #-*-Coding: UTF-8 -*- # Form implementation generated from reading UI file 'xml-excel2.ui'## Created: Tue dec 09 13:42:25 2008# By: pyqt4 UI code generator 4.4.3## Warning! All changes

Http://blog.csdn.net/winterttr/article/details/2590741 Author: winterttr (reprinted, please note) I think this title may be a problem for beginners. Especially those who are familiar with C/C ++ like me, just entering the python Hall . The method of

The raw_input function in python is very useful when users need to interact with computers. In fact, there is always a similar function in R: Readline. For example, I have made a graph and want to find a value on the graph to decide where to split

Python only defines six data types: String, integer, floating point, list, tuples, and dictionary. But how can I implement some byte variables in C language in Python? This is important, especially for data transmission over the network. Python

The difference between threads and processes is that they share status, memory, and resources. For a thread, this simple difference is both its advantage and Its disadvantage. On the one hand, threads are lightweight and easy to communicate with

Some friends asked me to help with a log monitoring script some time ago. The requirements are as follows: 1. Windows Environment 2. Sound is triggered when the keyword of the log is matched. The matching keyword is different and the playing

OS. chmod () method this method updates the path or File Permission In numeric mode. This mode can take one of the following values or bitwise OR operation combinations: Stat. s_isuid: Set User ID on execution. Stat. s_isgid: Set Group ID on

I have been using the python logging module for some time. To better understand the log working method, I checked its source code and summarized it as follows: the Log Module has the following core components: 1. Logger class: log processing class

We often use two threads in the producer/consumer relationship to process data in a shared buffer. For example, a producer thread accepts user data into a shared buffer and waits for a consumer thread to extract and process the data. However, if the

Data is often shared among multiple execution threads. It is okay to read only the shared data, but unexpected results may occur if multiple threads want to modify the shared data. Synchronization Lock Mechanism Create a Lock Object using the

1. There are two ways to achieve concurrency, one is to let each "task" or "process" work in a separate internal space, each with its own working memory area. However, although processes can be executed in a separate memory space, they are not

#! /Usr/bin/ENV Python # encoding: utf8import OS, sys # global definition # base = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F] Base = [STR (x) for X in range (10)] + [CHR (X) for X in range (ord ('A'), ord ('A') + 6)] def bin2dec (str_num ):

Chapter1 has no good records. It mainly explains what python can do, its advantages and disadvantages. There is only one feeling after reading, that is, Python and Java are very similar and almost identical, but Java is more powerful. Chapater2 1.

I have been playing tricks on Python recently and want to learn how to build a python interpreter in my own solidmcp. At first, I thought it was very advanced. I directly removed an open-source software from the python Console Based on QT and