python aws lambda example

nested structure" – Zen of Python To avoid a for loop, you can use these tools 1. List parsing/builder expressions To see a simple example, this example compiles a new sequence based on an already existing sequence: result = []for item in item_list: new_item = Do_something_with (item) Result.append (item) If you like MapReduce, you can use the map, or the

The dictionary is the only type of mapping in the Python language, which is often encountered in our daily work, the following article mainly introduces you about how to gracefully merge two dictionaries (dict) in Python, the text of the sample code introduced in very detailed, the need for friends can refer to the reference, Let's take a look below. Objective The dictionary is one of the most powerful dat

Use the Python Twisted framework to compile the code example of a non-blocking program, pythontwisted Let's take a look at a piece of code: # ~*~ Twisted - A Python tale ~*~from time import sleep# Hello, I'm a developer and I mainly setup Wordpress.def install_wordpress(customer): # Our hosting company Threads Ltd. is bad. I start installation and... print "Sta

the database connectionDb.close ()2. Database insert operation Copy CodeThe code is as follows: #!/usr/bin/python# Encoding:utf-8Import MySQLdb# Open Database connectiondb = MySQLdb.connect ("localhost", "root", "361way", "test")# get an action cursor using the cursor () methodcursor = Db.cursor ()# SQL INSERT statementsql = "" INSERT into EMPLOYEE (first_name,Last_Name, age, SEX, INCOME)VALUES (' Mac ', ' Mohan ', ' M ', ' 2000 ') ' ""Try# Execute S

/python$ An example of an object-oriented implementation found on the Web: When you add a callback (Callback) function, the code tends to focus on the implementation of the callback rather than the problem itself. One solution is to implement a common base class to address the requirements of the callback, and then implement your method of binding (the binding) for an event. The code is as follows: Class

This article mainly introduces the usage of Python callback functions, and analyzes in detail the definition, functions, and related usage skills of Python callback functions in the form of examples, for more information about how to use the Python callback function, see the example in this article. Share it with you f

Python is a dynamic language without static checking, and sometimes it is necessary to ensure that arguments are valid when calling a function. Checking the legitimacy of parameters is a significant aspect of the scene, and each function may have this requirement. But on the other hand, whether the parameter legitimacy should be by the caller to ensure that the better is also a need to practice to answer the question, in short, both sides agreed, do n

audio object. Class email. mime. image. MIMEImage: MIME binary file object. Class email. mime. text. MIMEText: MIME text object. Looking at the above explanation, I may feel confused. In fact, I have a superficial understanding of smtp and MIME. But most of the time, we only need to use it. The following is a simple example to demonstrate how to use these classes to send emails with attachments: # Coding = gbk import smtplib, mimetypes from emai

Example of how to implement a Sudoku Algorithm in python This example describes how to implement the sudoku Algorithm in python. Share it with you for your reference. The details are as follows: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

This article describes an example: using Pymongo to connect MongoDB, querying string Records in MongoDB, and comparing the similarity between strings.One, Python connects MongoDBApproximate steps: Create mongoclient---> Get DataBase---> Get collection, the code is as follows:Client = mongoclient (host="127.0.0.1", port=10001= client[' database_name']db.authenticate (name="user_name", password= " Password "

Python keyword module usage Example Analysis, pythonkeyword This example describes how to use the python keyword module. Share it with you for your reference. The details are as follows: Help on module keyword:NAME keyword - Keywords (from "graminit.c")FILE /usr/lib64/python2.6/keyword.pyDESCRIPTION This file is aut

Python cookbook (data structure and algorithm) to find the maximum or minimum N elements implementation method example, pythoncookbook This example describes how to find the maximum or minimum N elements in python. We will share this with you for your reference. The details are as follows: Problem:To find the maximum o

This article mainly introduces the Python encryption module md5, sha, and crypt instances. This article provides the MD5 and crypt module code examples, for more information, see the MD5 (Message-Digest Algorithm 5) module to calculate information ciphertext (Information Digest) and obtain a 128-bit ciphertext. The sha module is similar to md5, but generates a 160-bit signature. The usage is the same. The following

Python list (list) method example, pythonlist Preface In daily development, some API interfaces limit the number of requested elements. In this case, you need to split a large list into a fixed small list and then perform related processing, this article has collected several simple methods and shared them for your reference. Let's take a look at the detailed introduction below:

simple example to demonstrate how to use these classes to send emails with attachments: # Coding = gbk import smtplib, mimetypes from email. mime. text import MIMEText from email. mime. multipart import MIMEMultipart from email. mime. image import MIMEImage msg = MIMEMultipart () msg ['from'] = "from@yeah.net" msg ['to'] = 'To @ 21cn.com' msg ['subobject'] = 'email for tesing' # add mail content txt = MIMEText ("this is the mail content ~~ ") Msg. at

Take a look at the code first: # ~*~ Twisted-a Python tale ~*~ from time import sleep # Hello, I ' m A developer and I mainly setup wordpress.def install _wordpress (Customer): # Our hosting company Threads Ltd. is bad. I start Installation and ... Print "Start installation for", Customer # ... then wait till the installation finishes successfully. It is # boring and I ' m spending the most of my time waiting while consuming # resources (memory

understanding of SMTP, MIME is also very superficial. But most of the time, we just have to use it. Here is a simple example of how to use these classes to send messages with attachments: #coding =gbk import Smtplib, mimetypes from Email.mime.text import Mimetext from EMAIL.M Ime.multipart Import Mimemultipart from email.mime.image import mimeimage msg = Mimemultipart () msg[' from '] = ' from@y Eah.net "msg[' to"] = ' to@21cn.com ' msg[' Sub

The example is a candlestick (K-line) drawn with the Tinker embedded matplotlib, and the data is read from the CSV. It's a rough afternoon, and it's just for reference. The Python code is as follows:Import Matplotlibimport matplotlib.dates asMdatesimport Pandas asPD frommatplotlib.figure Import figure frommatplotlib.finance Import CANDLESTICK_OHLC frommatplotlib.backends.backend_tkagg import Figurecanvastka

This example describes Python's keyword module usage. Share to everyone for your reference. Specific as follows: Help on Module Keyword:name keyword-keywords (from "graminit.c") FILE /usr/lib64/python2.6/ Keyword.pydescription This file is automatically generated, please don ' t muck it up! To update the symbols in this file, ' CDs ' to the top directory of the Python source tree after building the in

This article mainly introduces the example of implementing the rest request api in python. if you need it, refer to the Sina python api for reference. it is applicable to open-source api requests. The code is as follows: #-*-Coding: UTF-8 -*-Import collectionsImport gzipImport urllibImport urllib2From urlparse import urlparse Try:From cStringIO import StringIO