Python Modules and Packages 3

Question 1

What does a relative import like `from . import utils` do?

Accepted Answer

Imports `utils` from the same package as the current module

Answer

A single leading dot (`.`) means the import is relative to the current package, so `from . import utils` loads a sibling module.

Question 2

Where does `pip install` place packages by default?

Accepted Answer

In the `site-packages` directory of the active Python environment

Answer

`pip install` places packages in the `site-packages` directory of the currently active Python interpreter or virtual environment.

Question 3

What is the role of `setup.py` in a Python package?

Accepted Answer

It defines package metadata and build instructions for distribution

Answer

`setup.py` uses `setuptools.setup()` to declare package metadata, dependencies, and entry points for building and distributing a package.

Question 4

Which module provides the `find_spec()` function for inspecting how a module would be imported?

Accepted Answer

importlib.util

Answer

`importlib.util.find_spec('module_name')` returns a `ModuleSpec` describing how the module would be located and loaded.

Question 5

What does `from ..sibling import helper` mean in a package?

Accepted Answer

Import `helper` from a module in the parent package's `sibling` subpackage

Answer

Two dots (`..`) navigate to the parent package, so `from ..sibling import helper` imports from a subpackage that is a sibling of the current package.

Python Practice Test