The import statement in Python is used to include the definitions (functions, classes, variables) from a module into the current namespace. This allows you to use functions and classes defined in other files or modules.
# Import the entire math module
import math
# Use a function from the math module
result = math.sqrt(16)
print(result) # Output: 4.0
The import statement in Python allows you to import a module with an alias. This is useful when you want to refer to a module with a different name in your code.
# Import the math module with an alias
import math as m
# Use a function from the math module using the alias
result = m.sqrt(16)
print(result) # Output: 4.0
In Python, you can import specific functions or classes from a module instead of importing the entire module.
# Import specific functions from the math module
from math import sqrt, pi
# Use the imported functions directly
result = sqrt(16)
print(result) # Output: 4.0
# Access the imported constant
print(pi) # Output: 3.141592653589793
In Python, you can import all definitions (functions, classes, variables) from a module using the * operator. This allows you to use all the definitions from the module without having to prefix them with the module name.
# Import all functions and variables from the math module
from math import *
# Use the imported functions directly
result = sqrt(16)
print(result) # Output: 4.0
# Access the imported constant
print(pi) # Output: 3.141592653589793