By Sumit Gupta

Improve interesting real-world Python-based net purposes with Neo4j utilizing frameworks comparable to Flask, Py2neo, and Django
About This Book

improve a collection of universal functions and ideas with Neo4j and Python
safe and set up the Neo4j database in production
A step by step consultant on imposing and deploying interactive Python-based internet functions on graph facts model

Who This publication Is For

If you're a Python developer and need to extend your knowing of Python-based net purposes over Neo4j graph information versions, this can be the publication for you.
What you'll Learn

comprehend the licensing and deploy of the Neo4j database and paintings with its quite a few instruments and utilities
study the intricacies of Cypher as a graph question language
paintings with Cypher to create and regulate graph information models
combine Python and Neo4j utilizing Py2neo
strengthen REST-based prone over social community information utilizing Flask and item graph types over Neo4j
combine Django-based internet functions over graph info versions utilizing Neomodel
discover diversified deployment types and their applicability with present applications

In Detail

Py2neo is an easy and pragmatic Python library that offers entry to the preferred graph database Neo4j through its RESTful net carrier interface. This brings with it a seriously refactored middle, a purifier API, higher functionality, and a few new idioms.

You will start with licensing and fitting Neo4j, studying the basics of Cypher as a graph question language, and exploring Cypher optimizations. you can find tips on how to combine with a number of Python frameworks corresponding to Flask and its extensions: Py2neo, Neomodel, and Django. ultimately, the deployment facets of your Python-based Neo4j functions in a construction atmosphere can also be lined. by way of sequentially operating during the steps in each one bankruptcy, you are going to fast examine and grasp some of the implementation info and integrations of Python and Neo4j, supporting you to strengthen your use circumstances extra fast.

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Sample text

1), nor is it a valid domain name. Citrix Netscaler has always been exposing its endpoint this way, so we can only assume this is done by design. One possible reason it happens this way is that someone might want to use the same WSDL information along with his software to manage multiple load-balancing devices, and therefore it would be impractical to retrieve and compile WSDL from every single device he is going to manage. Hence, it is left to the API user/developer to replace this address with the correct one.

And the formula itself has to be written in Reverse Polish Notation, in which you specify the first argument, then the second argument, and then the function that you want to perform. The result can then be used as a first argument. ” It takes some time to adjust, but once you get a handle on it, expressing formulas in RPN is really pretty easy. Finally, we need to make the graph even more presentable by adding a label to the y-axis, a legend for the value that we are plotting, and the title for the graph itself.

Figure 1-7. The index web page in the browser window The link for each list item points to an individual check details web page. html. png" /> This template links to a graph image, which has been generated by the RRDTool graph method. Figure 1-8 shows the resulting page. 35 CHAPTER 1 N READING AND COLLECTING PERFORMANCE DATA USING SNMP Figure 1-8. SNMP detail information with graph Summary In this chapter we’ve built a simple device monitoring system. In doing so you learned about the SNMP, as well as the data collecting and plotting libraries used with Python—RRDTool and the Jinja2 templating system.

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