Three Typical Python Programs | Celestial warrior

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Frequently Asked Questions: file:///C:/Users/Taha%20Umar%20Farooq/Videos/FOLDER/[Tutsgalaxy.com]%20-%20The%20Python%20Mega%20Course%20Build%2010%20Real%20World%20Applications/01%20Getting%20Started/009%20Installation%20FAQs.html

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Great, before we go ahead and learn about

the Python basic such as variables,

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functions and so on I think it's good

that's you understand how a Python

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program looks like. This is especially

good if you have never programed before.

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languages you may have three kinds of

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programs and I'll tell you why we have

three kinds of programs so you may have

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a program with a command line interface

such as this one here. You may have a

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program with a graphical user interface

such as this one here, so it's a desktop

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application and you may also have for

web applications such as this one in

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here that runs on the browser and it

can be accessed through the internet.

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Now the first thing you should know is that

all these programs they are based on a

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dot py file such as this ones in here

so this is a Python file and whenever

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you start building something you should

write your code in this script I which

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looks like this one here, anyway and then

once you have that script you can either

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run it through the command line interface

such as this one, script 4.py

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Execute it and then you communicate with

the interface so your program your

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Python program is asking you to enter

some letters in there and so enter V V

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and c for consonants consonants. L or C, anyway

and get some output in the command line

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Interface. Now when do you use such a program?

Well, you do this program if you not

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planning to distribute this program to

normal users, to people who don't know

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programming so I use Python,

the Python program which I have

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already installed and I show and I'll

show you how to install that later so I

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use Python and that points to the Python

script so to the Python program to execute

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the program. Now, normal users they don't have

Python installed or they don't know how

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to execute a Python program and that's

why you have

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graphical user interface there such as

this one, or browsers such as this one

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in here and yeah why don't you use

desktop application such as this? Well you'd

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use that if you just want to distribute

your program to a specific number of

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users let's say you work on a

company and you will want to build a

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program for the employees of a company

to do specific tasks and so you could

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build this program and it's possible to

create an executable file out of your

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Python program. This particular one is

A dot exe file for Windows, it runs on

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Windows as a standalone program but you

can also create dot app files for Mac

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computers and then the user they don't

need to have for installed. They would

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simply execute the dot exe file and they

can use the application so yeah, that's

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the application. We will be building all these

three applications in the course so the

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command line interface, the web

application and the desktop based

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application and then you have

web applications such as this one you here.

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So when would you use a web application?

Well the web applications are best when

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your audience is large so basically you

may want as many users to your

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application as possible so for

instance what we have here is this is a

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geocoder service. It geocodes, it converts

addresses to latitude and longitude

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coordinates so what users can do here is

they can choose a file, so s CSV file and

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then you calculate latitude and

longitude and send them back as csv file

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with those values so a web application in

simple words can be for anyone and this

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also is based on dot py files on the

background so I will show these files

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for now we're going to build all these

applications as I told you so,

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yeah that's about this lecture I hope you

have a clear idea now

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Of what a program, a Python program looks

like and what you can do with Python as well.

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If you have questions please feel

free to ask them in the Q&A section, so in

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the discussion area of the course and

yeah I'll be happy to help you. Hope you

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enjoyed this and I'll to talk you in the next

lectures.

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