PYTHON 3.2 TUTORIAL PDF
This publication is available in Web form. 1 and also as a PDF document. 2. Please forward Python A fine general-purpose programming language. This document is a reference guide, not a tutorial. If you are. LearningProgrammingwithPython. Operator Precedence and Associativity. .. zetom.info Release Date June 18, Python is an easy to learn, powerful programming language. It has efficient high-level data structures and a.
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Introduction to Python. Heavily based on presentations by. Matt Huenerfauth ( Penn State). Guido van Rossum (Google). Richard P. Muller. gives enough understanding on Python programming language. Audience. This tutorial is designed for software programmers who need to learn Python. This tutorial can also be used to learn Python programming language from scratch. Prerequisites in this tutorial, please notify us at [email protected] com.
That's understandable, since we didn't use Cygwin to install Python. You should only need to do this once: after you've run that command, the terminal will always be able to find Python again. You're finally done installing and setting up Cygwin! Installing Sublime Text Lastly, you'll need a text editor. There are many good options, but I suggest Sublime Text : it's very powerful and useful, and it has an unlimited free trial.
Please note that Microsoft Word is a word processor, not a text editor: you cannot use Microsoft Word for writing computer programs. Installing Sublime Text is easy: just go to the Sublime Text homepage, download the installer, and install it.
Sublime Text is not free software, but you can try it for as long as you like before you download it. If you end up writing many programs using Sublime Text, I encourage you to download a license. Verify that it all works Now that you're all set up, let's verify that everything is working properly! The first program that any programmer writes is called "Hello, World! So, let's write "Hello, World!
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If that works, lets move on to writing a program into a file. Open up Sublime Text, and type in the following:! This is THE most comprehensive book on slicing in existence. Another great book about computer games from Al Sweigart. The book specifically addresses kids but is also interesting for adults who like gaming. This book is one of the most comprehensive Python books I have ever seen.
Sometimes this can be a bit dry — but the author does a great work in making it interesting for the reader. This is a very popular book that asks you to perform programming exercises in your terminal. By putting in the actual effort and typing in all the little commands , you learn more thoroughly at the cost of a larger time investment.
GetApplication 1. Type the following code into the script file: The following results should be seen in the output win- dow: Now we will have a look at what else is inside the Python command object. Whenever you open a Python command object, you will see a window with a number of tabs: We will go through each tab and the functions that are available. Figure 2.
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This can be any object, e. Inside the script, the object can be used like a variable by calling the name defined here. One reason to employ a remote script is if you have multiple study cases using the same script code, but different input parameters.
If you were to use a remote script, then mod- ifying the master script will affect all the Python objects that refer to it. If you had locally defined scripts, then you would need to change the code in every single local Python object individually. You can access these parame- ters as if they were from any other type of object, i.
The Description and Version tabs are informational tabs for script descriptions and revision information. The Python command object may contain objects or references to other objects available in the PowerFactory database. These can be accessed by clicking on the Contents button. An example showing the possible contents of a Python command object is shown in Figure 2. PrintPlain line. PrintPlain Line.
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PrintPlain Lines. Object name. A tooltip will appear with the corresponding variable name. For example, hovering over the power factor field in the static generator element yields the variable name: Figure 3.
The Python command object can contain other objects within it. To access the contents of a Python object, click on the smarksContents button of the Python command dialogue: ComPython internal template object You can use an internal object inside the Python command object as a template for the object type you want to create. To create the object, you can use the AddCopy object name command. In order to use this command, you must first locate the folder or object that you want to copy the template into.
Python Command Object ComPython Dialogue - External Object To use this area, simply double-click on the object field and select an object you would like to reference from anywhere in the project hierarchy.
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This is the name that the object will be called inside the Python script. Once the external template object has been selected, you can use the AddCopy object name command to create a new object in the database. With template objects, you can set default parameters and even add child objects inside the template. The CreateObject class name, object name function is used to create new objects.
Like the previous two methods, you must first locate the folder or object that you want to create the object in. PrintPlain oFold Copy the template short circuit event into the events folder oFold. This function will return an object with a reference to the top level of project folders, e.
The function returns a list of objects that meet the criteria in the string. Some examples: This function is essentially a shortcut to accessing objects inside a study case, which is used to navigate to the study case project folder, selecting a study case and then selecting an object.
The other advantage of GetFromStudyCase is that if the object does not exist inside the study case, the function will create it. Note however that this function only works with the active study case. The code snippet below gets the graphics board object from the active study case. PrintPlain oDesk 3.
In order to access a study case, you must first access the study case folder. The code snippet below does the following: PrintPlain aCase app. PrintPlain aCase. Activate Note that if there are subfolders within the study case folder, then further processing needs to be done to access the study case objects within these subfolders. For more information please refer to Navigating Project Folders in section 3. The Execute object function can then be used to execute the calculation.
The following list of calculation command objects are available: Execute 3. To get the value of these results you can use GetAttribute string method.
Refer to the section 5 for more information.If no bus is found, then null is returned. Now we can start using the terminal: if you don't know how, I suggest you read this tutorial on how to use the command line. These can be accessed by clicking on the Contents button.
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Firstly some general definitions for the objects related to virtual instrument panels: That was easy! Please note that Microsoft Word is a word processor, not a text editor: you cannot use Microsoft Word for writing computer programs.
The book specifically addresses kids but is also interesting for adults who like gaming.