Python pip

These tasks are about using pip in code or command line and understanding how to install, list, upgrade, and use packages safely.

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📦 Python pip – 20 Basic Assignments

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1) Check pip Version

In a Python script or terminal, use a command to print the current pip version.

Example (terminal):

pip --version

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2) List Installed Packages

Use pip to list all installed packages.

Expected command:

pip list

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3) Search for a Package

Use pip to search for a package like requests.

Example:

pip search requests

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4) Install a Package

Install the requests package using pip from the command line.

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5) Uninstall a Package

Uninstall a package you installed (e.g., requests) using pip.

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6) Show Package Information

Use pip show to display information about an installed package (e.g., requests).

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7) Install Specific Version

Install a specific version of a package (like requests==2.25.1).

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8) Upgrade a Package

Upgrade a package to the latest version using pip (e.g.,:

pip install --upgrade requests

)

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9) Use Installed Package in Script

Write a Python program that imports requests (or another installed package) and prints a simple result, e.g. version.

import requests
print(requests.__version__)

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10) Create requirements.txt

Generate a requirements.txt file listing all installed packages.

Example:

pip freeze > requirements.txt

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11) Install from requirements.txt

Provide a requirements.txt and install packages from it using:

pip install -r requirements.txt

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12) Check if Package is Installed

Write a Python script that tries to import a package and prints whether it’s installed:

try:
    import requests
    print("Installed")
except ImportError:
    print("Not installed")

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13) Uninstall All From Requirements

Uninstall all packages listed in a requirements.txt using pip (combine list + uninstall logic).

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14) Create a Virtual Environment

Create a Python virtual environment using python -m venv env and activate it, then install a package inside it.

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15) Deactivate Virtual Environment

Practice deactivating a virtual environment and verify imports fail when outside.

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16) Install a Testing Package

Install a package for testing like pytest and verify it installs.

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17) List Outdated Packages

Use pip to show only outdated packages:

pip list --outdated

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18) Upgrade All Outdated Packages

Use pip to upgrade all outdated packages one at a time.

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19) Install a Package With Extras

Install a package with optional extras (e.g., requests[security]), if available.

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20) Fix Broken Installation

Practice uninstalling and reinstalling a package that produces an import error.

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🧠 What You’re Practicing

Concept	Example
Check pip version	pip --version
List installed packages	pip list
Install package	pip install pkgname
Uninstall package	pip uninstall pkgname
Show package info	pip show requests
Install specific version	pip install pkg==1.0.0
Upgrade package	pip install --upgrade pkg
Use requirements files	pip install -r requirements.txt
Use virtual environment	python -m venv env

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⚠️ Notes for Beginners

✔ Commands like pip install … run in the terminal / command prompt, not inside Python scripts. ✔ Virtual environments help you install packages without affecting the global Python setup. ✔ Using requirements.txt is important when sharing projects.

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📌 Example Exercise

Install and use a real package

1. Run:

pip install pyfiglet

1. Write a Python script:

import pyfiglet

text = pyfiglet.figlet_format("Hello")
print(text)

1. Run it and observe ASCII output.

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canvil: 333f6c7d-6876-4f7e-b6ad-1bdb2233f5c1