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#Python Introduction
Python is case-sensitive language
Python supports OOP's concept
Python used in Web development, Machine Learning,
Data Analytics, Artificial Intelligence etc..
Python used by the companies like Google, Facebook,
Instagram, Netflix etc...
Python is an interpreted language
print function
print("Hello World!")
print('Hello World')
print(10)
print(20.33)
print(type(10))
x = 10
y = 'hello'
z = x + y
print(z)
x = """ Python
Supports
OOP's
"""
print(x)
x = "Hello"
print(len(x))
#Slicing
#Array index starts from 0, 1, 2.... from start
#Indexing
x = "Hello"
print(x[4])
#Negative Indexing
#Negative Indexing starts from -1, -2, .... from end
x = "Hello"
print(x[-5])
#Slicing
#In slicing, we provide the range of indexes
x = "Hello"
print(x[0:4])
print(x[2:])
print(x[:4])
print(x[:])
x = "Hello"
print(x[-5:-2])
print(x[:-1])
print(x[-5:])
Strip Methods
#Remove whitespaces from the beginning or end
x = " Hello "
print(x.strip())
x = " Hello"
print(x.lstrip())
x = "Hello "
print(x.rstrip())
x = "hello"
print(x.upper())
x = "HELLO"
print(x.lower())
x = " India is great"
print(x.replace("great", "popular"))
x = " India is great"
print(x.split("is"))
x = "Helllllo"
print(x.count('o'))
x = "Hello"
print(x.find('e'))
x = "Hello"
print(x.index('H'))
x = "Ind"
y = "ia"
z = x + y
print(z)
x = 'what\'s up'
print(x)
x = 'what\n up'
print(x)
x = 'what\t up'
print(x)
x = 10
y = "KM"
z = x + y
print(z)
#String Formating
curly brackets {}
format() method
x = 10
y = "{} KM"
print(y.format(x))
x = 10
z = 20
y = "{1} KM"
print(y.format(z,x))
Python List
store multpile items in a single variable
Array can not store different data types
List can store different data types
Lists are mutable means changeable
Duplicate values are allowed
Lists are ordered
Insertion order is preserved
Lists are represented by square brackets [] and
values separated by comma.
Create a List
mylist = [10, "delhi", 20.33, True, 10, -50]
print(mylist)
print(type(mylist))
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