Python

MYSQLDB Installation steps:1. Download the installation package MYSQL_PYTHON-1.2.5-CP27-NONE-WIN_AMD64.WHL2. Go to the disk where you downloaded the installation package, enable shell command installation from your directory, start the shell command

/* ******************************************************************************** * Python Importerror:no Module named image * Description: * The Image Library needs to be used in the process of calculating the acquaintance of

List ExercisesProblem:1. Start the program, let the user enter the salary, and then print the product list;2, allow users to purchase products according to the product number;3, the user selects the goods, checks whether the balance is enough,

Python's "mutable" tupleWe saw in the front that the tuple cannot be modified once it is created. Now, let's look at a "mutable" tuple:>>> t = (' A ', ' B ', [' A ', ' B '])Notice that T has 3 elements: ' A ', ' B ' and a list:[' a ', ' B '. List as

Python built-in modulesitertoolsProvides a very useful function for manipulating an iterative objectFirst, let's itertools look at a few "infinite" iterators provided:Import itertools>>> natuals = itertools.count (1) for in natuals: ... Print

1. For LoopThe user iterates through the contents of an object in order. Ps:break, continueName_dict = {'name'' nios' age' ' Sex ' ' male ' } for in name_dict: print(i) Run Result: nameagesex 2. Enumrate (object, start=0)Adds an ordinal to an

Vamei Source: Http://www.cnblogs.com/vamei Welcome reprint, Please also keep this statement. Thank you!Original chain: http://www.cnblogs.com/vamei/archive/2012/07/10/2582795.htmlNotes:1 #19th talk about dynamic types2 3 #There is a special kind of

Before learning a language, let's understand why we should learn it.Python is a scripting language, simple language, compatible with the various versions of the system, learning the language will be a future operation and maintenance of the daily

Dlib is mainly used in machine learning Library, encapsulating the machine learning algorithm, can be very convenient to implement such as face recognition, vehicle identification, object detection with many other functions, dlib by default use C + +

1, if use virtualenv environment, direct use PIP freeze > Requirements.txt? ~. Virtualenvs/xxx/bin/pip Freeze > Requirements.txt2. If you do not use virtualenv, use the tool pipreqsThe benefit of this tool is that it is possible to automatically

Here's a summary of the URLs or resources that you used to learn about Python, including a lot of people's blogs, which make it easy to find resources from this

Create a tuple of PythonTuple is another ordered list, and Chinese is translated as "tuple". Tuple and list are very similar, however,once a tuple is created, it cannot be modified .The same is the name of the class, expressed as a tuple as follows:>

Using Python to complete a simple crawlerRecently learned the crawler, instantaneous feel very tall on, want to take what to take what, feel to heaven. Here to share a simple crawl Autohome article List of picture tutorials for everyone to

Package Package, which is a folder containing __init__.py files, is created to organize files (modules) in folders.Python3, even if there is no __init__.py file in the package, the import can still be used. and Python2 in the package must

Tag: Print ack So a desc work code back LANReplacing elements in PythonLet's say the class is still 3 students:>>> L = [' Adam ', ' Lisa ', ' Bart ']Now, Bart's classmates are going to transfer, and happened to be a Paul classmate, to update the

Adding new elements to PythonNow, there are 3 students in the class:>>> L = [' Adam ', ' Lisa ', ' Bart ']Today, the class transferred to a new classmate Paul, how to add new students to the existing list?The first option is to append the  append() 

Python's Reverse access listWe still use a list to score from high to low to show 3 students in the class:>>> L = [' Adam ', ' Lisa ', ' Bart ']At this time, the teacher said, please score the lowest students stand out.To write code to accomplish

Little knowledge about the logging module-at the same time writing logs to different files, little knowledge about logging When you define a function for writing logs, you can use logging to call this function multiple times to write logs of

It's hard to get a name! (Django first), django first This time we will implement a simple login registration function, and write the corresponding data into the database: Before doing this, I have created two new tables in the database (of course,

Python verification code based on Django, djangopythonVerification 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