DEV Community

Keerthana M
Keerthana M

Posted on

python day2

PYTHON INSTALLATION

  • Python current version is 3.14.6
  • Python is a Forward compatibility
  • In Linux default there is a python we can access the python through terminal
  1. In window we have to download the python.
  • python.org--->python--->download.
  • After installation in windows we have to type the IDLE.

What is IDLE ?

  • IDLE- (Integrated Development and Learning Environment).
  • It will give the result immediately when you begin the code
  • The shell is a interactive interpreter
  • It provide the output for each line of the code immediately.

EXAPMPLE PROGRAM:

5+10
output: 15

25/10
output:2.5
Enter fullscreen mode Exit fullscreen mode

*Advantage *

  • In python we need not to declare data type like other programming Language. Eample: 
name="keerthana"
print("Welcome", name, "!") //comma seperation makes space btw words
output:
Welcome keerthana !
Enter fullscreen mode Exit fullscreen mode 
name="keerthana"
print("Welcome"+name+"!") // plus operator here concatinates.
output:
Welcomekeerthana!
Enter fullscreen mode Exit fullscreen mode

name ---> reference variable/identifier
print----> Function (action)
= ----> Assignment Operator .it assigns the value to an variable.

FUNCTION OVERLOADING:

Same Function name but different type of arguments
For Eg:

The above program has the same function name print but different type of arguments. as we discussed above.

Top comments (0)