Introduction to Python Programming Language

Introduction to
Python
ARNOLD R. HIPOLITO JR.

Python
SIMPLE GENERAL-
PURPOSE
HIGH-LEVEL INTERPRETED

PYTHON
FEATUR
ES
Free
Open-source
Easy to use
Readable
Very clear syntax – simpler,
shorter
No type declarations
Uses indentation

CREATOR
• Guido van Rossum,
1991

GUIDO’S
FAVORITE
TV SHOW
Monty Python’s Flying
Circus, BBC

Real-World
Applications
of Python

Syntax on Strings
print() – built-in
function that
allows an output
of text or number
Syntax:
print(“Hello,
World!”)
print(‘Hello,
World!’)

Single
Quote
Inside
double
quote &
Vice
versa
•Syntax:
• print(“Hello, ‘World’!”)
• print(‘Hello, “World”!’)

SYNTAX ON NUMBERS
No quotation
marks needed
Syntax:
print(10)
print(3.141592
6)

When to pause: ESCAPE
SEQUENCES
Special characters
characterized by a backslash
() and letter or symbol beside
it.
Used in print() to show:
• spaces
• new lines
• symbols that cannot be
outputted using normal print()

t
Prints a horizontal
tab space.
print("HellotWorld!")

N
Prints the
proceeding text to a
new line.
print("HellonWorld!"
)

Another
WAY:
multiple
print()
statemen
ts
print("This is
Line 1")
print("This is
Line 2")

ANOTHE
R:
USING
TRIPLE
SINGLE
QUOTES
OR
DOUBLE
print(‘’’This is
Line 1
This is Line 2’’’)

’
Prints a single quote inside texts enclosed in double quotes.

“
Prints a double quote inside texts enclosed in double quotes.

PYTHON
PLACEH
OLDERS
A formatting specifier that
will be replaced by a value
corresponding to its data
type.
Syntax: print("placeholder"
% <value_here>)

%c
Represents a single letter or
symbol.
Syntax: print("%c" % "a")

%s
Represents a group of
characters.
1
Syntax: print("%s" % "I love
programming")
2

%d
Represents a whole
number.
Syntax: print("%d" % 22)

%f
Represents a number with
decimal points.
Syntax: print("%f" % 3.41)

Introduction to Python Programming Language

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