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Installing Python3

Updated on Jan 07, 2020

This tutorial focuses on Python 3. Most Linux distribution for e.g Ubuntu 14.04 comes with python 2 and 3 installed, here is the download link. If you are using some other linux distribution see this link for installation instructions.  Mac also comes with python 2 and python 3 installed (if not see this link for instructions),  but this is not the case with windows.

note:

Note: Throughout this tutorial i will give instructions wherever necessary for Windows and Ubuntu 14.04 only.

Installing Python 3 in Windows #

To install python you need to download python binary from https://www.python.org/downloads/, specifically we will be using python 3.4.3 which you can download from here. While installing remember to check "Add Python.exe to path" (see the image below).

install-python.png

Now you have installed python, open command prompt or terminal and type python . Now you are in python shell.

python-shell.png

To test everything is working fine type the following command in the python shell.

print("Hello World")

hello-python.png

Expected output:

Hello World

If you are using Ubuntu 14.04 which already comes with python 2 and python 3, you need to enter python3 instead of just python to enter python 3 shell.

invoke-python3.png

Installing Text Editor To write python programs you will need a text editor, you can use text editor like notepad. If you want to use full-fledged text editor then use notepad++  or sublime text. Download and install text editor of you choice.

Now you have successfully installed python 3 and text editor and ready to move on to the next chapter, where we will learn different ways of running python programs.

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