chatbot examples python

This article mainly introduces Python exit, return, Sys.exit (), such as the use of examples and differences, this article is a practical project summary, the need for friends can refer to the There is a problem with the string identifier. Modify Example 6-1 's idcheck.py script to detect length-one identifiers and identify the Python keyword, and you can use th

Springcloud Consolidated PHP, python examples Code has been uploaded to: https://github.com/KeoZmy/SpringCloudDemo.git, the blog did not write to the gateway Zuul, but Git has uploaded the preface Recently spent time studying micro services, various open source components combine a framework to the final decision to use springcloud such a mature framework. Have to say, Springcloud is indeed very strong, th

What is a closure? To paraphrase the wiki: in Computer science, closures (Closure) are abbreviations for lexical closures (lexical Closure) and are functions that refer to free variables. The referenced free variable will exist with this function, even if it has left the environment that created it. So, there is another saying that closures are entities that are combined by functions and reference environments associated with them. Closures can have multiple instances at run time, and different

syntax for a lambda function contains only one statement, as follows: Lambda [arg1 [, Arg2,..... argn]]:expressionThe following example: #!/usr/bin/python#-*-Coding:utf-8-*-# Writable Function Descriptionsum = lambda arg1, arg2:arg1 + arg2;# Call the SUM functionPrint "Adds a value of:", SUM (10, 20)Print "Adds a value of:", SUM (20, 20)The above example outputs the result: The added value is: 30The added value is: 40 ----------------------------

= Make (chan int64, 2) if n = = 0 | | n = = 1 {return int64 (n)}runtime. Gomaxprocs (2) go func () {channel Test results: [Email protected]$ time Go testPASSOK _/home/crbsp/alex/go/fib 6.118s Real 0m6.674sUser 0m10.268sSYS 0m0.148s Iterative-based implementation scenarios:Func fib3 (n int) Int64 {var A, b int64a, b = 0, 1for i: = 0; i Test results: [Email protected]$ time Go testPASSOK _/home/crbsp/alex/go/fib 0.002s Real 0m0.547sUser 0m0.328sSYS 0m0.172s Clo

, etc. Examples of how to use Env.roledefs:Env.roledefs = {' webserver ': [' 192.168.1.21 ', ' 192.168.1.22 '], ' dbserver ': [' 192.168.1.25 ', ' 192.168.1.26 ']}# A python adorner is used to refer to a grouping, such as: @roles (' webserver ') def webtask (): Run ('/usr/local/nginx/sbin/nginx ') @roles (' webserver ', ' DBServer ') def publictask (): Run (' uptime ')Fabric Common APIsLocal #执行本地命令, such a

value of the variable K, and the second%s is replaced by the value of V. All other characters of the Python format string (in this case, the equals sign) are printed out as-is. Note (k, v) is a tuple. String formatting is more than just a connection. It's not even just formatting. It is also a coercion type conversion. String Formatting vs. String joins >>> uid = "sa" >>> pwd = "secret" >>> print pwd + "is not a good password for" + UID Secret is n

This paper describes the use of Optionparser module in Python in detail, and it has good reference value for studying python in depth. Share for everyone to use for reference. The specific analysis is as follows: In general, there are two built-in modules in Python that handle command-line arguments: One is getopt, "Deep in

This article mainly introduces examples of Python smtplib module to handle the use of e-mail, is the basics of Python introductory learning, need friends can refer to the In internet-based applications, programs often need to send e-mail automatically. For example: A website registration system will send a message to confirm registration when the user registers;

This article mainly introduces the use of continue statements in Python examples, is the basic knowledge of Python introduction, the need for friends can refer to the The Python continue statement returns the start of the while loop. The continue statement rejects the rest of the statements in the current iteration of

This paper describes the use of Python functions in detail in the form of examples, which is of great value to beginners ' friends in Python. Share for everyone to use for reference. The specific analysis is as follows: In general, the Python function is written by a new statement that DEF,DEF is an executable stateme

The example in this article analyzes Python multithreading usage. Share to everyone for your reference. Specifically as follows: Today, while learning to try Python multithreading, I suddenly found that I was not very clear about the use of super, so I summed up some of the problems encountered. When I try to write the following code: Copy Code code as follows: Class A (): def __init__ (s

cardinality. such as: Random.randrange (10, 100, 2), the result is equivalent from [10, 12, 14, 16, ... 96, 98] sequence to obtain a random number. Random.randrange (10, 100, 2) is equivalent to Random.choice (range (10, 100, 2) on the result Random.choiceRandom.choice gets a random element from the sequence. Its function prototype is: Random.choice (sequence). The parameter sequence represents an ordered type. Here's how: sequence is not a specific type in

Examples of __new__ and __init__ differences The most common use of __new__ and __init__ in Python is __init__,__init__, which is much like Php,c,java in other languages, but __new__ is similar to constructing methods and executes earlier than __init__. What's the difference between them? How do you use it? What is the __init__ method? Students who have written object-oriented code in

Algorithm (hash).To ensure the correctness of the hash, the object as a key can not be changed. In Python, strings, integers, and so on are immutable, so you can safely use them as keys. The list is mutable and cannot be a key:>>> key = [1, 2, 3]'a list'Traceback (most recent call last): " " in 'list'" "Dictionary: Contains " "my_dict= {'name':'Kumata',' Age': 20,' Location':'Zhuhai'}#Output Key valuePrint(my_dict['name']) #increase key pair valu

The examples in this article describe the Python file and directory operations methods. Share to everyone for your reference. The specific analysis is as follows: The operation of files and directories in Python typically involves multiple OS modules, Os.path modules. Specific functions and how they are used are described in the program. ? 1 2 3 4

= logging. Filehandler (logname) fh.setlevel (logging. DEBUG) 16 17 # Create another handler for output to the console ch = logging. Streamhandler () Ch.setlevel (logging. DEBUG) 20 21 # Defines the output format of the handler #formatter = logging. Formatter ('% (asctime) s-% (name) s-% (levelname) s-% (message) s ') Formatter = Format_dict[int (loglevel)]24 Fh.setformatter (Formatter) Ch.setformatter (formatter) 26 27 # Add logger self to handler28. Logger.addhandler (FH) Self.

all variable names with no single underscore at the beginning The __all__ list is valid only in the form of the FROM * statement, not a private statement Example: #test. py Key= ' Got ' _nooutpute= ' lllllllllllllll ' Error= ' FASDFSA ' Code= ' FSADFSA ' Decode= ' 324324 ' __all__=[' ERROR ', ' Code ', ' decode '] Print {' already ': (lambda:2+2), ' Got ':(lambda:2*4), ' One ': (lambda:2**4) }[key] () #_X__all__. py From Test import * Print (Error) Print

Today, I saw an interesting loophole in Wooyun. Say it interesting, the first is the idea is very special, of course, because the security is very low, the second use of the Python POC has a small details, hereby share.Website called Fenby Network, mainly for Pythoner online learning, it has an online exercise function, you can enter the code, and then execute, test run the results ...So the landlord registered an account, URL:http://www.fenby.com/cou

following is a classic question about thread deadlock: "The question of dining philosophers" as the last example of this section. The question is this: five philosophers sit around a table, with a bowl of rice and a chopstick in front of each person. Here each philosopher can be regarded as a separate thread, and each chopstick can be regarded as a lock. Each philosopher can sit, think, and eat in one of three states. It is important to note that every philosopher eats two chopsticks, so the qu