reinforcement learning python tutorial

1.Python Installation1.1 Linux Installation PythonThe CentOS 6.5 version installs the Python 2.6.6 by default, installs the 2.7 version to use the wget to download the source package, downloads the decompression and installs the operation in the Decompression folder, the installation completes enters the Python650) this.width=650; "src=" Https://s1.51cto.com/wyfs02/M02/A7/4F/wKioL1nkujfSt5e-AAAxViGwYGw312.p

Basic Python Tutorial (second edition) Learning note files and materials (11th)Open File:Open (Filename[,mode[,buffering]])Mode is the pattern of reading and writing filesF=open (R ' c:\somefile.txt ') #默认是读模式+ means can read and write, R read mode, W write mode, a append mode, b binary mode;The newline character is \ r \ n in Windows, and in Unix,

ReadLine () method to read line by row, reading one line at a time, and then moving the pointer to the beginning of the next line. The ReadLines () method stores the results of the read as a list, and when it is finished, the pointer moves to the next bit at the end of the file. Each line in the original file is a return element in the list. Append write using ' A ' mode, after opening the file, the pointer still refers to the file header, after the write () method is written into the string, t

Basic Python Tutorial (second edition) Learning Note function (Chapter 6th)To create a function:def function_name (params):BlockReturn valuesRecord function:def function_name (params):' NOTE ' #注释BlockReturn valuesfunction_name.__doc__Help (Function_name)Return # no value returnedPosition parameters and keyword parameters:Keyword parameter to provide the name of

Naive Bayesian algorithm is simple and efficient, and it is one of the first ways to deal with classification problems. With this tutorial, you'll learn the fundamentals of naive Bayesian algorithms and the step-by-step implementation of the Python version. Update: View subsequent articles on naive Bayesian use tips "Better Naive bayes:12 tips to get the Most from the Naive Bayes algorithm"Naive Bayes cla

will produce an error. here, if you use the PASS statement, you can pass the syntax requirements and have no other effect. (2) del statementby assigning A to none, a point-to-list (' A12 ', ' b34 ', ' c456 ') is cut off. But a as an object still floats in memory. you need to use the DEL statement to remove object A. for lists [' A12 ', ' b34 ', ' c456 ') This cannot be deleted in Python. We use the DEL statement to simply remove the reference to an o

functions. For example: POW is used to calculate standard functions such as Solutionkeys GT;GT;GT;2**38GT;GT;GT;POW (2.3) 8pow, called built-in functions, or you can customize functions. The 1.9 module can be thought of as an extension that imports into Python to enhance its functionality and is imported using the Import command. For example: Import the Math module with import and use >>>importmath>>>math.floor (32.9) in the format "module. function"

Bo friends, due to the continuous development of operation and maintenance related technology, personal ability is constantly improving, the daily accumulation of experience can not be updated to the previous blog post. Therefore, in order to better help you learn the operation and maintenance technology, specifically for the shell and Python scripting language summary of the document, this document will not periodically modify or add knowledge points

provided to Add_password.The highest-level URL is the first one that requires validation. The more profound URLs you pass on to. Add_password () will be equally appropriate.10. Sockets and LayersPython support for acquiring network resources is a hierarchical structure. Urllib uses the Http.client library, and then calls the socket library implementation.In Python2.3 you can specify the waiting response time-out for the socket. This is useful in applications that need to get a Web page. The def

Python programming for loop statement learning tutorial, pythonfor A Python for loop can traverse any series of projects, such as a list or a string.Syntax:The syntax format of the for Loop is as follows: for iterating_var in sequence: statements(s) Flowchart:Instance: #! /Usr/bin/

: print name Five. Assertion usage: When the assertion is used primarily for testing. If the assertion does not pass, it will be an error.>>> assert ageassert age9 # The first assertion passed. The second assertion did not pass, so the error was made. Traceback (recent):""1 in assertAge 9assertionerrorSix. Comprehensive use.1. Below is a list of the numbers that are taken out of the list:　　　　 myList = [ frank , " bob , 2. Print out the Yang Hui triangle: 10-layer Yang Hui triangle,

learn more about objects in the later class chapter. If you've already used help () in Python, you've seen the use of docstings! All it does is grab the __doc__ property of the function and show it neatly to you. You can try this on the function above-just include help (Printmax) in your program. Remember to press Q to exit help. Automation tools can also extract documents from your program in the same way. Therefore, I strongly recommend that you wr

Print dic[' Key1 ']Print dic[' Key2 ']#修改字典dic["Key2"] = 789;Print dic#删除字典元素Dict = {' Name ': ' Zara ', ' age ': 7, ' Class ': ' First '};Del dict[' Name ']; # Delete key is ' Name ' entryDict.clear (); # Empty Dictionary all entriesDel Dict; # Delete Dictionary#1) does not allow two occurrences of the same key. When created, if the same key is assigned a value of two times, the latter value is remembered, as in the following example:#2) key must be immutable, so it can be used as a number, str

the terminating index value location. you can allow only the starting index parameter value to be provided, but not only the terminating index value. (2) Join method The Join method is used primarily for connection strings and can only be used for connection strings. Uses one of the specified characters to concatenate multiple strings and finally returns a new string. multiple strings that need to be connected can be given once in the form of a list or tuple. (3) Lower methodlower is used to co

(Basic Python tutorial) learning notes | Chapter 2 | magic methods, attributes, and iterators This chapter is a little abstract and looks a little painful! Double underline _ ure _ or single underline has special meanings. in Python, the set of these names is called the magic method: the most important is _ init _ and

, 10 print Span style= "color: #000000;" > nnumbers # list multiplication # multiply the number x by a list to generate a new list, and in the new list, the original list will be repeated x times data = [22] print Datadata *= 10print data # list empty nnumbers = [] print nnumbers >>>[1, 2, 3, 4, 5, 6, 9, 9, 10][22][22, 22, 22, 22, 22, 22, 22, 22, 22, 22][] Membership:Checks whether a value (element) is in the list, uses the In operator, returns true if it exist

This article is not very in-depth, but there are a lot of examples, learning Python advanced data structure of a good basic tutorial. The concept of The concept of data Structures Data structures is well understood and is the structure used to organize data together. In other words, the data structure is what is used to store a series of associated data. Th

connected by Python. For example, ' what\ ' s ' your Name? ' " What ' s your name? " 5. Object 6. Variable 7. Logical lines and physical lines If you want to use more than one logical line in a physical line, you need to use a semicolon (;) to specifically indicate this usage. semicolon represents the end of a logical line/statement. For example: I=5;print (i) Example of writing a lo

item in the new dictionary. Values MethodThe values method is used to return a value in the dictionary as a list. is similar to the items method and the Keys method. Because the values in the dictionary may be the same, the returned list can contain duplicate elements.(itervalues) methodThe Itervalues method is used to return the values in the dictionary as iterators. Similar to the Iteritems method and the Iterkeys method. Because the values in the dictionary may be the same, the returned list

Basic Python Tutorial (second edition) Learning Note Strings (Chapter 3rd)All basic sequence Operations (index, Shard, multiply, Judge membership, seek length, maximum minimum) also apply to strings.The string is not to be changed;The left side is the format string, and the right side is the value that needs to be formattedprint '%s=%d '% (' x ', ') ==> x=100% in