Python

First introduce the following mysqldb, Dbutil, Sqlobject:(1) MySQLdb is the interface for Python to connect MySQL database, it implements the Python database API specification V2.0, based on the MySQL C API. In addition to MySQLdb, Python can also

Calling functions Python has many built-in functions that can be viewed in its pipe network document: https://docs.python.org/2/library/functions.html The Help information can also be viewed at the command line in the case where the function name is

pythonThe module in is a more important concept. A common scenario is to write a. py file in advance, copy the pre-written. py file to the current directory when you need the import in another file, or add the directory where the. py file is in the

1. Process1) Call the Process function fork () in the Unix/linux system, use the same as Linux, the call returns 0 successfully, and the failure returns-1:ImportOSPrint 'Process (%s) Start ...'%os.getpid () PID=os.fork ()ifpid==0:Print 'I AM Child

You might need to sort out some documents in your actual work, or record some data, and using Python to manipulate Excel might help you.Read operation:#Encoding:utf-8 #设置编码方式ImportXlrd#Import xlrd Module#Open the Excel file for the specified file

Build a Python environment: To install a Python package:Win version: Https://www.python.org/ftp/python/2.7.9/python-2.7.9.msiLinux version: https://www.python.org/ftp/python/2.7.9/Python-2.7.9.tgzUsing Virtual environments:Virtual environments

Fast on the fast, slow official resource links are replaced by the domestic, so download installs much faster.Re-install Python, it's also a good exercise for yourself!1. Install python27, do not go to official website, the official website is too

1. Classclass Student (object): def __init__ (self, Name, score): = name = Score1) __init__ constructor method, __init__ the first parameter of the method is always self , representing the created instance itself, when called,

ObjectiveThe first project of the new company, the server side intends to use Python as a restful API. So need to build Nginx+fastcgi+python on the CentOS development environment, but many comments on the internet said Uwsgi than fastcgi in many

Today received a colleague from the Web to help, he would have crawled through Java content of a Web page, but found that capture is some garbled, and then try to use Python urllib to get, is still garbled, but in the browser access is normal JSON

1. Concept:Functional programming is a very http://i.cnblogs.com/EditPosts.aspx?opt=1 high-level programming paradigm, the purely functional programming language functions do not have variables, so any function, as long as the input is OK, the

Pythonic definitionPython's most commonly used coding style is PEP8, see: http://jython.cn/dev/peps/pep-0008/Pythonic is really hard to define, just a few classic explanations from the Zen of Python:Beauty is better than ugliness (Python's goal of

Question 1: 1 non-ascii character '\xe9' in fileProblem reason: Problems with program codingWorkaround: Add code to the program header#Set code encoding for UTF8 to work immediatelyQuestion 2:Print garbled under WindowsError reason: The code format

1 ImportWhen program grows bigger, it's good to break it into different modules. A module is a file containing Python definitions and statements. Python modules has a filename and end with the extension .py .Definitions inside a module can be

Original: 6 Python performance Tips6 Python performance Optimization tipsTranslator: DwqsPython is a very cool language, because very few Python code can do a lot of things in a short time, and Python can easily support multitasking and

Before you know the adorner, be sure to understand the function as a parameter pass, what is the function inline, please refer to my previous blog function introduction The Python decorator idea is somewhat similar to the decorative pattern of

Ubuntu under sudo pip install PIL installation PiL may be problematic, for example, display of JPEG support not available or ZLIB (Png/zip) in the event of installation complete available1. Install the PIL first uninstallsudo pip uninstall PIL2. Go

Reference custom modules in Python After learning Python for a short period of time, it has never been stuck in simple syntax and cannot really understand the power of Python. I learned how to reference a custom module today. When a module is

Python Backtracking Method for Analysis of output instances in full array arrangement and python instance analysis This article describes how to implement full array output by using the python backtracking method. Share it with you for your

Python (2.7.6) Standard Log Module, python2.7.6 In addition to using the basicConfig method in the logging module to configure logs, in the logging. config module of Python, The dictConfig and fileConfig methods support Logger, Handler, and