This document provides an overview of Python for data science, including introductions to key Python concepts like datatypes, printing statements, operators, loops, and functions. It begins with an introduction to Python and why it is commonly used for web development, software development, mathematics, and system scripting. It then covers basic Python datatypes, how to print text, arithmetic and other operators, the different types of loops (while, do-while, for), and how to define and call functions. The document is presented by a student as part of a practical training on Python for data science.

1. GLOBAL INSTITUTE OF TECHNOLOGY
Department of Computer Science and Engineering
A
PRACTICAL TRAINING
on
Python for data science
Submitted to:
Mr. Pradeep Jha
Head of Dept.
Presented By: Mohammad Anish
Reg. No.: 21EGJCS076
Semester – III
Year - II
Session: 2022-23

4. CONTENT
• Introduction
• Why python
• Datatypes in Python
• Printing statements
• Operators
• Loops
• Functions

6. Introduction
• Python is a popular programming
language , and released in 1991.
• It is used for:
• web development (server-side),
• software development,
• mathematics,
• system scripting.

7. Why Python?
⚫ Simple
⚫ Powerful
⚫ Usually preinstalled
⚫ LessSyntax
⚫ OpenSource

8. Datatypes in python
• Int
• List
• String
• Boolean
• Float

9. Printing a Line of Text
• print(“ “)
• Anything placed inside the quotes will be printed on the screen upon
execution of the print command.
• print(“Python Presentationn”)
• print(“by: Mohd. Anish”)

10. Operators in Python
• Arithmetic operators (+ , - , *, /, %)
• Assignment operators (= , += , -= , *= , /= , %=)
• Comparison operators (==, !=, <, >)
• Logical operators (and, or, not)
• Bitwise operators(& , |)

11. Loops in python
• Loops are used for iterating over a sequence
Types of Loops:
• While Loop
• Do-while Loop
• For Loop

12. While loop
• Syntax:
while condition:{
execute this code in the loop's body
}

13. Do-while Loop
• Syntax:
do {
loop block statement to be executed;
}
while(condition);

14. For loop
• Syntax:
for val in sequence:
Loop body

15. Example
print(“Hello”) Step 3: Execute the body of the
loop
Step 1: Perform the initialization
expression
Step 2: Evaluate the test expressions
Step 4: Perform the
update
for i in range(0, 5, 1):
Update i

16. Function Definition
• Definition includes:
• return value: the value the function returns to the part of the
program that called it
• name: name of the function. Function names follow same
rules as variables
• parameter list: variables containing
values passed to the function
• body: statements that
perform the function’s task

17. Calling a Function
• Functions just like variables need to be called in
order to be invoked
• Code:
Calling a Function:
• functionName (Parameters)

18. Thank You!