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It's also easy for beginners to use and learn, so jump in! Even some Windows computers notably those from HP now come with Python already installed. Before getting started, you may want to find out which IDEs and text editors are tailored to make Python editing easy, browse the list of introductory books , or look at code samples that you might find helpful.
There is also a list of resources in other languages which might be useful if English is not your first language.
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The online documentation is your first port of call for definitive information. There is a fairly brief tutorial that gives you basic information about the language and gets you started. You can follow this by looking at the library reference for a full description of Python's many libraries and the language reference for a complete though somewhat dry explanation of Python's syntax.
If you are looking for common Python recipes and patterns, you can browse the ActiveState Python Cookbook. Release the icon and the application shortcut is removed from the Dock. At the top of the screen you will see some menus. These menus change depending on what application you are using at the moment.
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If there is ever anything you want to do in a certain application, try to find it in these menus. Look at the top of your screen. To the right of the menus you are most likely to see a few symbols. Rather than having to open System Preferences, you can change the settings using Menu extras.
To change what Menu extras are visible, open System preferences. Click a preference pane and look for the checkbox that lets you choose if you want the specific Menu extra to be visible or not. Mac OS X offers a really nice way to switch between the different user accounts on the Mac. Near the upper right corner of your screen you will find your name. Click it and a list of all the users on the computer will appear. To do that we need to create a new file. This will open up a new code editor.
Now that you have two windows open, feel free to lay them out whichever way you feel most comfortable with. We have set ours out side by side as shown below.
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Then save it as helloworld. As is customary in programming, the first program that you write will output "Hello World" to the screen. We're going to go to our code editor window and type in instructions that we would like our shell to carry out. The command we are going to use is the print command. This command looks like this.
Inside the brackets is where you put what you would like to be printed. So we're going to use print to create an output to the shell, like this:. Your output will appear then appear in the shell window. It should look something like this. It is important to put the speech marks around any words that you would like to be printed to the shell, the reasons why are for another time, but for now just remember that words need speech marks around them just like talking in a book would. Have a practice printing different phrases to the screen to get used to it.
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Our second task is to use Python to do a calculation for us. So we're going to open up the shell again and open up a new file, just like we did before. This time we're going to name our file Calculation. This time instead of printing words, we're going to print a calculation. We are going to add 9 and 8 together, so we need to type into our new file our new print command, which looks like this.
You will notice now that the shell that it prints the answer, as you can see below. Try different calculations to get used to using the skill, remember that numbers don't need the speech marks around them.
Finally, we will create one more basic program that will use something called an if statement. This allows us to do something if it meets a certain condition. Let's open up a new file again, and write out the following syntax:.protterrscaveron.tk
Here we are setting a variable of myNumber to , then we will run an if statement to check if myNumber is over If it is, we print "This is a high number", otherwise we will print "That is a low number". Don't forget to save and then run the program, as you did with the previous examples. You will notice that the program prints out "This is a high number", because our number is over Feel free to change the number, and see what output you get. Now that you've got your feet wet, you might want to learn more about Python.
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Below, we have listed some of the best resources to get you on your way. Udemy's Python Bootcamp will teach you Python from the ground up. You will learn more about the Python syntax, build your own applications and games. A good way to go from beginner to professional.