POC Implementation & Configuration 2

Question 1

Which pip command installs a package in 'editable' (development) mode from a local directory?

Accepted Answer

pip install -e .

Answer

The `-e` flag (short for `--editable`) installs a package so changes in the source directory are immediately reflected without reinstalling.

Question 2

What is the purpose of a `pyproject.toml` file in a Python project?

Accepted Answer

It defines build system requirements and project metadata per PEP 517/518

Answer

`pyproject.toml` is the modern standard (PEP 517/518) for specifying build backends, build dependencies, and project metadata.

Question 3

Which Python built-in module provides support for reading and writing configuration files in INI format?

Accepted Answer

configparser

Answer

The `configparser` module reads and writes configuration files using INI-style syntax with sections and key-value pairs.

Question 4

What does `sys.path.insert(0, '/my/module/path')` accomplish?

Accepted Answer

Prepends a directory so Python searches it first

Answer

Inserting at index 0 places the directory at the front of `sys.path`, giving it the highest search priority.

Question 5

In a virtual environment created with `venv`, where are installed packages stored?

Accepted Answer

In the `Lib/site-packages` subdirectory of the venv folder

Answer

A venv maintains its own isolated `Lib/site-packages` directory separate from the global Python installation.

(POC) Python Online Certification Practice Test