Lecture 0 python basic (ewurc)

Python Lecture 0 Problem Set 0: Basic

Topic • Installation • Hello World • Input/ Output • Variable (+Naming Convention) • Data Type • Type Casting • Built in Function • Problem Set 0: Basic (6)

Create First Python Program File • Python IDLE • File -> New File -> Save (/Save As) -> Hello.py • Write Python Program • Run -> Run Module (F5)

Write First Python Program print("Hello World")

Comment • # Single Line Comment • """ Multi Line Comment """

First Python Program Modified # First Python Program # Program Name: Hello World # Author Name: Mun Al Mamun # A Program to Print a text print("Hello World")

Input/ Output 1 # input a String name = input() print(name)

Input/ Output 1 (Con.)[Display Message 1] #input a String print("Input Your Name") name = input() print(name)

Input/ Output 1 (Con.)[Display Message 2] #input a String name = input("Input Your Name: ") print(name)

Input/ Output 1 (Con.)[Data Type] #input a String name = input("Input Your Name: ") print(name) print(type(name))

Input Your Name # input a String #print("Input Your Name") name = input("Input Your Name: ") #name = input() print(name) #print(type(name))

Variable (+ Naming Convention) The Rules • https://www.python.org/dev/peps/pep-0008/#naming-conventions • lowercase_underscore for functions, methods, attributes, variables • lowercase_underscore or ALL_CAPS for constants • PascalCase for classes • camelCase only to conform to pre-existing conventions • _underscore for non-public methods and instance variables

Input an Integer Number age = input() print(age)

Input an Integer Number [2] age = input() print(age) print(type(age)) • All Input is String in Python • We have to Type Cast to convert String into Integer.

Input an Integer Number [3 (no way)] age = input() print(type(age)) print(age) age = int(age) print(age) print(type(age))

Input an Integer Number [3] [Final] age = int(input()) print(type(age)) print(age) print(type(age))

Input an Float Number cgpa = input() print(cgpa) print(type(cgpa))

Input an Float Number [1 (no way)] cgpa = input() print(type(cgpa)) cgpa = float(cgpa) print(cgpa) print(type(cgpa))

Input an Float Number [2] [Final] cgpa = float(input()) print(type(cgpa)) print(cgpa) print(type(cgpa))

Are you a liar? [1] you = True print(you) print(type(you))

Are you a liar? [2] you = False print(you) print(type(you))

Formatted I/O #Input Name with Formatted Output name = input("What is Your Name: ") print("Hello, ",name) #Input Age with Formatted Output age = int(input("What is Your Age: ")) print("Your age is: ",age) #Input CGPA with Formatted Output cgpa = float(input("What is Your CGPA: ")) print("Your CGPA is ",cgpa)

Formatted I/O #Input Name with Formatted Output name = input("What is Your Name: ") print("Hello, ",name) print("Hello, ",name, "nHow are You?") print("Hello, {}".format(name)) print(f"Hello, {name}")

Data Type • str (String) • int (Integer) • float (Float) • bool (Boolean) • None (NoneType)

Built-in Function • print() • input() • type() • int() • float() • https://docs.python.org/3.6/library/functions.html

Problem Set 0: Basic (6) • Hello World. • IO Your Name. • IO your Age. • IO your CGPA. • Are you a liar? (Boolean) • Formatted I/O. (String + Numeric) [for Problem 2,3,4]

Online Resourse • python.org -> Docs -> Tutorial • YouTube • Python Tutorials -> Corey Schafer • Python Beginners Tutorials -> Mahmud Ahsan : Thinkdiff • Learn Python Programming -> Clever Programmer • Python 3.5 Basic (Bangla) -> Vubon Roy • Python Tutorials for Absolute Beginners by CS Dojo -> CS Dojo

Prepared by Mun Al Mamun President East West University Robotics Club munewu@gmail.com T h i s s l i d e i s p r o v i d e a s a c o u r s e m a t e r i a l i n t h e w o r k s h o p “ W o r k s h o p O n P y t h o n P r o g r a m m i n g ” O r g a n i z e d b y E a s t W e s t U n i v e r s i t y R o b o t i c s C l u b

Lecture 0 python basic (ewurc)

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