By Alex Martelli
Python in a Nutshell offers a high-quality, no-nonsense quickly connection with info that programmers depend on the main. This booklet will instantly earn its position in any Python programmer's library.
This e-book deals Python programmers one position to seem once they need assistance remembering or interpreting the syntax of this open resource language and its many strong yet scantily documented modules. This entire reference advisor makes it effortless to appear up the main usually wanted information--not with reference to the Python language itself, but in addition the main usually used components of the traditional library and crucial third-party extensions.
Ask any Python aficionado and you'll pay attention that Python programmers have all of it: a chic object-oriented language with readable and maintainable syntax, that permits for simple integration with elements in C, C++, Java, or C#, and a major choice of precoded general library and third-party extension modules. additionally, Python is straightforward to profit, but strong adequate to tackle the main formidable programming demanding situations. yet what Python programmers used to lack is a concise and transparent reference source, with the fitting degree of steerage in how top to exploit Python's nice strength. Python in a Nutshell fills this need.
Python in a Nutshell, moment Edition covers greater than the language itself; it additionally offers with the main usually used elements of the traditional library, and the preferred and demanding 3rd get together extensions. Revised and multiplied for Python 2.5, this booklet now includes the gory information of Python's new subprocess module and breaking information approximately Microsoft's new IronPython venture. Our "Nutshell" layout suits Python completely by way of providing the highlights of crucial modules and capabilities in its usual library, which conceal over ninety% of your useful programming wishes. This publication includes:
* A fast moving instructional at the syntax of the Python language
* an evidence of object-oriented programming in Python
* assurance of iterators, turbines, exceptions, modules, programs, strings, and ordinary expressions
* a short reference for Python's integrated forms and services and key modules
* Reference fabric on very important third-party extensions, akin to Numeric and Tkinter
* information regarding extending and embedding Python
Python in a Nutshell presents an exceptional, no-nonsense fast connection with info that programmers depend upon the main. This publication will instantly earn its position in any Python programmer's library.
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As time is going on, method directors are provided with more and more complex demanding situations. within the early days, a workforce of engineers may need needed to take care of one or platforms. nowadays, one engineer can administer thousands or hundreds of thousands of systems.
System directors are progressively changing their instruments with extra complex and versatile ones. one of many offerings is Python. Structurally, Python is a latest, high-level language with a really fresh syntax. Python comes with many integrated libraries that could make automation projects more uncomplicated. It additionally has broad set of third-party libraries and a really energetic improvement neighborhood. this adaptability makes Python a good selection for a large choice of projects, from prototyping technology functions to approach upkeep and management jobs.
* This publication explains and exhibits tips to observe Python scripting in perform. not like the vast majority of the Python books, it's going to allow you to strategy and get to the bottom of real-world concerns that the majority approach directors will encounter of their careers.
* during this ebook, you can find numerous initiatives within the different types of community management, net server management, and tracking and database administration. In every one venture, we'll outline the matter, layout the answer, and wade through the extra attention-grabbing implementation steps.
* every one undertaking is observed with the resource code of a completely operating prototype, which you’ll be capable of use instantly or adapt on your specifications and atmosphere.
<h3>What you’ll learn</h3> * resolve real-world procedure management difficulties utilizing Python.
* deal with units with SNMP and cleaning soap.
* construct a allotted tracking procedure.
* deal with net functions and parse advanced log documents.
* immediately visual display unit and deal with MySQL databases.
<h3>Who this booklet is for</h3>
This ebook is basically geared toward skilled process directors whose daily initiatives contain taking care of and coping with small-to-medium-sized server estates. it is going to even be priceless for method directors who are looking to study extra approximately automation and need to use their Python wisdom to unravel numerous approach management problems.
Python builders also will take advantage of interpreting this e-book, in particular in the event that they are excited by constructing automation and administration tools.
This publication assumes that readers already use Python and are happy with the language. many of the Linux distributions include Python and diverse libraries (such as Django, PIL and SciPy) packaged and on hand, yet easy wisdom of putting in applications in a Linux/Unix surroundings is advised.
<h3>Table of Contents</h3>
<ol> * Reading and accumulating functionality information utilizing SNMP1
* dealing with units utilizing the cleaning soap API
* making a internet software for IP handle Accountancy
* Integrating the IP tackle software with DHCP
* keeping a listing of digital Hosts in an Apache Configuration File
* accumulating and providing Statistical information from Apache Log Files
* appearing advanced Searches and Reporting on program Log Files
* a website Availability cost Script for Nagios
* administration and tracking Subsystem
* distant tracking Agents
* facts collecting and Reporting
* computerized MySQL Database functionality Tuning
* utilizing Amazon EC2/S3 as a knowledge Warehouse resolution
This e-book isn't really for pro hackers. as an alternative, this publication is made for novices who've programming event and have an interest in hacking. the following, hacking suggestions that may be simply understood were defined. if you happen to merely have a house computing device, you could try all of the examples supplied the following. i've got incorporated many figures which are intuitively comprehensible instead of a litany of causes.
I purchased this e-book simply because i used to be having hassle making feel out of the Twisted online documentation. i am particularly a ebook man, besides, and felt i wanted "The ebook" for Twisted. while the 1st web page an identical of "Hello international" blows up on Python 2. 6 due to a few vague deprecation factor, you recognize you're in for genuine difficulties.
‘A Byte of Python’ is a unfastened e-book on programming utilizing the Python language. It serves as an instructional or consultant to the Python language for a newbie viewers. If all you recognize approximately desktops is how one can keep textual content records, then this is often the e-book for you. This booklet is written for the newest Python three, even supposing Python 2 is the widely came across model of Python at the present time (read extra approximately it in Python 2 as opposed to three section).
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Extra info for Python in a Nutshell (2nd Edition)
Adding to the addons path Now that we have a new module, even if minimal, we want to make it available in Odoo. For that, we need to make sure the directory the module is in is part of the addons path. And then we need to update the Odoo module list. Both operations have been explained in detail in the previous chapter, but we will follow here with a brief overview of what is needed. py -d v8dev --addons-path="custom-addons,odoo/addons" --save The --save option saves the options you used in a config file.
Now read the error message in the server log carefully—it should point you to where the problem is. Creating views – form, tree, and search As we have seen, if no view is defined, Odoo will automatically generate basic views to get you going. But surely you would like to define the module views yourself, so that's what we'll do next. Odoo supports several types of views, but the three main ones are: list (also called tree), form, and search views. We'll add an example of each to our module. view model.
The filter domain used is defined the first instruction: it is a list of conditions, where each condition is a tuple. These conditions are implicitly joined with an AND operator ('&' in domain syntax). To add an OR operation a pipe ('|') is used in place of a tuple, and it will affect the next two conditions. We will go into more details about domains in Chapter 6, Views Designing the User Interface. uid) or don't have a current user set ('user_id', '=', False). [ 41 ] Inheritance – Extending Existing Applications What we just did was to completely overwrite the parent method, replacing it with a new implementation.