Python from

The from keyword in Python is used to import specific items (such as functions, classes, or variables) from a module instead of importing the entire module. It helps keep the code cleaner and avoids unnecessary namespace clutter.

For example, instead of importing the entire math module, only the required functions can be imported.

Syntax

from module_name import name

To import multiple items:

from module_name import name1, name2, ...

To import all public names from a module (not recommended):

from module_name import *

In the syntax:

• module_name: The name of the module to import from.
• name: The specific object(s) (function, class, or variable) to import.
• The asterisk (*) imports all public objects from the module, which can lead to namespace conflicts and reduced clarity.

Example 1: Importing a Specific Function

This example demonstrates importing a single function (sqrt) from the math module:

from math import sqrt

# Using the imported function directly
result = sqrt(16)
print(result)

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The output of this code is:

4.0

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Example 2: Importing Multiple Functions

This example shows how to import more than one function from the same module:

from math import ceil, floor

print(ceil(4.2))
print(floor(4.8))

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The output of this code is:

5
4

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Example 3: Using from for Relative Imports

The from keyword can also be used with relative imports inside packages, such as:

from . import utils
from ..helpers import format_data

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• Relative imports use dots (.) to indicate the current and parent packages.
• Explicit imports using from enhance code readability and prevent unnecessary components from being loaded.

Codebyte Example

The following example illustrates importing multiple functions (sqrt, pow) and using them directly in a program:

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