01. First program
## 01. FIrst Program
print ("Hello World!")
print ("Zizan")02. How codes in python get executed?
- Python reads code line by line.
- Interpreter works here. It helpes computer to read the codes we want to execute by their program.
00. Some keywords
1. IDE = Integrated Development Environemnt
2. GUI = Graphical User Interface
3. Interpreter = An interpreter is a program that reads and executes Python code.
It is responsible for translating and executing each line of Python code in real-time.
03. Data types
03.01. Number types
## Number types
# decimal
a_decimal = 11
print(a_decimal)
# hexadecimal
print(hex(a_decimal)) #0xb
#octal
print(oct(a_decimal))
#float
a_float = 1.22
print(a_float)Output:
11
0xb
0o13
1.22
03.02. String and Boolean
name = 'Zizan'
is_published = True
print(name,is_published)Output:
Zizan True
03.03. Exercise
A patient named John Smith (He is a new patient), 20 years old. Express this statement with variables.
name = 'John Smith'
age = 20
new_patient = True
print(f"The patient's name is {name}, aged {age}")
if new_patient == True:
print(f"{name} is a new patient")Output:
The patient's name is John Smith, aged 20
John Smith is a new patient
04. Getting Input
name = input("What's your name?:")
print(f"Hi {name}")Output:
What's your name?:Zizan
Hi Zizan
04.01. Exercise
Get input: name and favorite color. Print: For example, john likes red.
name = input("What's your name?: ")
fav_color = input("What's your favorite color?: ")
print(f"{name} likes {fav_color}")Output:
What's your name?: Zizan
What's your favorite color?: Red
Zizan likes Red
05. Type Conversion
# Type conversion
# string to int
birth_year = input('Birth Year: ')
age = 2023 - int(birth_year)
print(age)
# string to bool
name = "Zizan"
print(bool(name))
# int to float
number = 89
print(float(number))Output:
Birth Year: 1998
25
True
89.0
05.01. Exercise
There is weight in pounds. Convert it to kg
input_your_weight = int(input("What's your weight in pounds?: "))
print(f"Weight in kgs: {input_your_weight*0.45}")Output:
What's your weight in pounds?: 56
Weight in kgs: 25.2
06. Python Strings
06.01. Basic syntax
## Strings in single line
course = "Python for Beginners"
print(course)
## Strings in multiple lines
course_updated = '''Python
for Advanced Students '''
print(course_updated)06.02. Indexing
print(course[0])
print(course[-1])06.03. Indexing (Starting:Ending)
print(course[0:3])
print(course[1:])
print(course[:5])Output:
Python for Beginners
Python
for advanced students
P
s
Pyt
ython for Beginners
Pytho