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Hello welcome to this tutorial on Biden's package management system.

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Before discussing about pip let us first understand what a package manager does.

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A package manager is a system level application that allows us to update the current programs and install

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new programs all in one place and package managers are used to automate the process of installing upgrading

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configuring and removing programs.

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There are many package managers available today for Unix and Unix based systems as well as windows based

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systems and these are some of the examples of package managers.

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The Debian package management system Red Hat package manager Pacman package manager nixed packages package

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managers deal with packages and what does a package a package is a collection of individual files and

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information about those files and these packages provide a certain functionality as part of a larger

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system so here you have a package manager that is available in your system and you request the package

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manager to download a package from a certain or unknown location.

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Then the package manager then finds the requested package from a known location and downloads it.

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The package manager then installs the package in your system so you tell the package manager to install

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a software package and it will automatically download the appropriate package from it on free good location

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installs it and set it up.

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So where did all these packages available the packages available online at well-defined location and

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they serve as a central distribution point for the packages.

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And these locations where these packages are available are called Software repositories.

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These software repositories are also called sources or feed and every package manager has associated

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configuration files that bind to the repository locations.

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Now coming to the Python language package managers are also used for installing and managing modules

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for languages such as Python Ruby etc..

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B A B which is a recursive acronym for Pip installs packages is a package management system that is

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used to install and manage software packages written in Python and most distributions of Python combat

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Pip pre installed as a python 2.0 7 dot 9 and newer Pip is installed by default incase Pip is missing.

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It can be downloaded using this link.

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And after you download Pip you need to run this command in the command prompt in order to install Pip.

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One major advantage of Pip is the ease of its command line interface which makes installing Python packages

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as easy as issuing one command.

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The python package index Bye bye is a repository of software for the Python programming language and

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it is a vast repository of open source Python packages supplied by the worldwide community of Python

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developers.

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So if you want to install a common by common library you can use the package manager that is available

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with Python Pip which knows how to pull files down from the Pi Pi which is Python package index say

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for example you have developed an application in python using the code modules available in the python

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standard library.

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Now there is a requirement to enhance or extend your application for which decode modules are not sufficient

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so in addition to the standard library Python allows us to access a growing collection of thousands

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of competence including individual programs and modules to packages and tired application development

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frameworks that are available from Python package index so you can request a package using Pip by issuing

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a command pip install package name and with this command Pip will search for this package name in PI

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by the python package index and if it finds this package it downloads the package and then installs

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it.

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So one of the major advantage of Pip is the ease of its command line interface which makes installing

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Python software packages as easy as issuing just one command

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so let us now see if Pip is installed in our system or not.

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So let us go to the command prompt and then type the command with Pip and once you hit enter.

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So here this is the part where the package manager Pip is available.

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So this is the part where Pip is available.

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Now using the package manager Pip lifters now download and install package from pi pi.

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So you have pip installed in your system.

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Now let us download a package from the software repository for python that is pi pi.

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The command is pip install package name so I'm going to download the package York three key and your

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three key.

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It is a tool for obtaining information about install Python packages and creating packages available

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on Pipeline so let us download and install this package from pipeline by and then hit enter after you

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issue this command and hit enter the package manager Pip has downloaded and installed the package your

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ticket gate into the system.

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And this package your three key is used to obtain information about the installed Python packages.

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So let us use this package in order to get information about the packages that are installed in the

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system.

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So for that the commanders your hyphen in and then hit enter so these are all the different packages

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that are installed in this particular system so you can see which packages are active non-active are

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in development mode.