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

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

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

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

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

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”)

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

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

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

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

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

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

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

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

Thank You!