Category: Python

First Program with Python:

Lets begin our first program with some of String operations.Python has a built in String class named “str” with many handy features.String literals can be enclosed by either double or single quotes, although single quotes are more commonly used. if you want to use Multi line String then you have to use triple quotes.

First Program

Lets assign three different strings to three different variables and print them.
To start with, open Python IDLE under Start –>Programs
or Type Python Under Run prompt

IDLE is an Interactive interpreter, however, you can’t execute more than one statement at a time.
If you want to execute a multi line code program, just copy and paste the below code by opening a new file (CTRL+N) and save it. Then, you can execute the code in the file with ‘key board short cut F5’. output can be seen in the IDLE as shown below:

str1='Single Quote'
str2="Double Quotes"
str3='''This is sentence has more
than one line '''
print(str1)
print(str2)
print(str3)

 
First program

If you face any error while executing the code or any doubts ,post your query in comments section , happy to assist you.

Introduction to Python

From today, we will start learning the most powerful and dynamic programming language popular for web development,big data, data science,and scripting.

Why Python:
1.You can create solutions quickly and others can understand them easily
2.Its an open source tool and has a great community when ever you are in trouble
3. No need of compilation
4.Cross platform,Runs anywhere, including Mac OS X, Windows, Linux, and Unix,
5.Comes with a large standard library that supports many common programming tasks such as connecting to web servers, searching text with regular expressions, reading and modifying files.
6.Is easily extended by adding new modules implemented in a compiled language such as C or C++.

You can find the more information here:
https://wiki.python.org/moin/BeginnersGuide/Overview

How to download Python:

You can download the Python Shell, using the below link
https://www.python.org/
Go to the above site, under downloads /Select OS type and down the latest version of Python ( 3.7.1)

After installing the exe, you can see the IDLE (Python 3.7) under Start->programs
or you can start the Python, by following the below steps
Go to Windows power shell program, and Type Python as shown below
Open python via Windows powershell

If you want to come out of Python, Press Control+z and Enter

We have many IDEs through which we can write Python code, I have listed top 5

1.PyCharm
2.Spyder
3.Eclipse+PyDev
4.IDLE – Which we have downloaded from above website
5.Atom

You can find more details about this in the below site
https://realpython.com/python-ides-code-editors-guide/

lets Finish this blog post with Simple Hello world Program.

Open Python IDLE and type print

first Python program

As you see python is a case sensitive language.

Thats it for now and we will continue to learn more about python in detail in upcoming posts.