introduction phyton install phyton practice phyton

1. Introduction to
Python -
Practice

2. Overview
• Starting Python
• Simple programming
• Numeric operators
• Simple program with function

3. Starting Python
• When you start Python, you will see
something like:
Python 3.5.1 (v3.5.1:37a07cee5969,
Dec 6 2015, 01:54:25) [MSC v.1900
64 bit (AMD64)] on win32
Type "copyright", "credits" or
"license()" for more information.
>>>

4. Starting Python
• The “>>>” is a Python prompt indicating that
Python is ready for us to give it a command.
These commands are called statements.
>>> print("Hello, world")
Hello, world
>>> print(2+3)
5
>>> print("2+3=", 2+3)
2+3= 5
>>>

5. Using IDLE Python
• Open IDLE Python
• Open new file
• Write the code
• Save the code as filename.py
• Run module

6. Simple program 1

7. Simple program 2

8. Simple program 3

9. Simple program 3

10. Numeric operators

11. Numeric operators

12. Simple program 4

13. Practice
Practice
• Write the Python code to compute the distance
between two points.

15. Simple program with function
• Usually we want to execute several
statements together that solve a common
problem. One way to do this is to use a
function.
>>> def hello():
print("Hello")
print("Computers are Fun")
>>>

16. Simple program with function
>>> def hello():
print("Hello")
print("Computers are Fun")
>>>
A function is invoked (or called) by typing its
name.
>>> hello()
Hello
Computers are Fun
>>>