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2024. április 02.
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Python környezet telepítése és beállítása Windows rendszeren

Python beszerzése Windows rendszerhez:

A windows rendszerek általában nem tartalmazzák a Python-t, de PowerShell környezetben is elérhetővé tehető. windows.html A Python hivatalos oldaláról letölthető a 64 bites és 32 bites windows architektúrához alkalmas a telepítőcsomag. [DOWNLOADs] A Chocolatey kínál alternatív módot a telepítéshez.

Python verzió lekérdezése: python --version

˘Folytatásért görgess a kép alá.˘

  • Setting up Your Environment on MacOS (Optional):
  • Setting up Your Environment on Linux (Optional):

Setting up Your Environment on Windows (Optional)

Windows computers don't usually come
with Python preinstalled. To check if your computer already has
Python installed, run the command we talked about earlier, python--version.


No, no Python here. Python isn't installed on this
computer, so we'll need to install it. There are a bunch of ways to do this on
Windows.

We can download the installable package
from the official website and install that one, get it from the store if
we're using Windows 10, or we can use a package management system called
Chocolatey to manage the installation.

For this video, we're just going to
install the package from the official website. But if you'd like to get a
taste of Chocolatey, you can check it out and download it on your own,
because who doesn't like things a little extra chocolatey, right? To find the
installer, go to the official download page for windows.


On this page, we can download the
executable installer for Python-3 64-bit architecture. Most computers today are
installed with 64-bit installations.

So if you don't know which one to pick,
pick that one, unless you know for sure that your computer is running a 32-bit
installation. Once the executable installer has
downloaded, we want to run it. This will install a new software on our
machine, so we need to run it as administrator user. Before clicking install now, make sure
you click on the add Python 3.7 to Path box.

The path variable instructs the
operating system to look for executables and certain directories of our system
when running commands from the terminal. You want to have that box selected so
that python interpreter gets executed when we invoke it from the command
line. Great, it's installing. It might take a moment. Now that it's
done, we can test to see that it worked.

We do this by opening a new PowerShell
and executing the same command as before. Nice. We now have an executable Python
interpreter that we can use for testing the scripts that we write.

As we called
out, just because we've got Python-3 installed, it doesn't mean that we have
the modules we might need for every possible script. Let's say we're tasked
with writing some automation that extracts information out of a website.

To get the contents of a website from
Python, we can choose the request module, which is used for interacting
with web services.

First, let's check whether we have this
module already available. Darn. The interpreter tells us that the
module isn't available. Let's install it using Pip. To do that, we'll call pip install
request from the command line, not the interpreter. We've now got the module installed.

Let's try to import it again from the
interpreter. Awesome, it worked. Just to double-check that, let's try to
do something with this module. For example, we can use the get
function to get the contents of a website.

So the get function process the website
and the response object now has its contents. We can do a bunch of things
with it. How about we check the length of the
response to text using the LEN function. Fantastic. Now that we have Python's
setup on our Windows environment, we are ready to have some fun with it. Feel free to explore on your own and
try some things out.

Up next, I'll show you how to install
Python on macOS. You can check that one out or you can
skip ahead, it's up to you.



Pointers for Getting Your Environment Setup

Learning more about operating systems
We’ve talked briefly about what an operating system is and what we'll need to know about operating systems for this course. If you want to learn some additional operating system concepts, check out the videos on this subject in the
Technical Support Fundamentals
course.

If you want to explore how to manage Windows and Linux, check out the
Operating Systems and You: Becoming a Power User
course.

If you want to discover more about the history of Unix, you can read all the details on the Unix
Wikipedia page.

Installing Python and additional modules
If you don't have Python installed yet, we recommend that you visit the
official Python website
and download the installer that corresponds to your operating system.

There’s a bunch of guides out there for installing Python and they all follow a similar process to the one we described in the videos. This
guide from Real Python
includes instructions on how to install python on a range of different operating systems and distributions.

Once you have Python installed on your operating system, it's a good idea to familiarize yourself with pip and the associated tools. You can find more info about these
here.

Using package management systems

Package management systems help you better manage the software installed on your machine. These management systems vary a lot from operating system to operating system. So, you need to pick the one that works for the OS you’re using. Check out these guides for help with this:

Installing Python 3 on Windows 10 with Chocolatey


Installing Python 3 on MacOS with Homebrew


Package management basics on Linux


Other information
Python in the Microsoft Store for Windows 10

Setting up Your Environment on Windows (Optional)


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