Add Black and Isort for Code Formatting (#2133)

Author: k-raina

.semaphore/semaphore.yml

@@ -193,6 +193,7 @@ blocks:
       prologue:
         commands:
           - '[[ -z $DOCKERHUB_APIKEY ]] || docker login --username $DOCKERHUB_USER --password $DOCKERHUB_APIKEY'
+          - sudo apt-get update -qq && sudo apt-get install -y -qq clang-format
       jobs:
         - name: Build and Tests with 'classic' group protocol
           commands:

CONTRIBUTOR.md

@@ -45,12 +45,20 @@ We use automated tools to maintain consistent code style:
 
 ```bash
 # Install formatting tools
-pip install flake8
+pip install black isort flake8
 
 # Check style
-flake8 src/ tests/
+make style-check
+
+# Fix style automatically
+make style-fix
 ```
 
+**Tools used:**
+- `black`: Automatic code formatter 
+- `isort`: Import statement organizer
+- `flake8`: Code linter for style and quality checks
+
 ### Naming Conventions
 
 - **Functions and Variables**: `snake_case`

DEVELOPER.md

@@ -181,10 +181,40 @@ pytest -q tests/integration
 
 See [tests/README.md](tests/README.md) for instructions on how to run tests.
 
-## Linting & formatting (suggested)
+## Linting & formatting
 
-- Python: `black .` and `flake8` (or `ruff`) per project configuration
-- Markdown: `markdownlint '**/*.md'`
+We use automated tools to maintain consistent code style:
+
+- **black**: Code formatter
+- **isort**: Import sorter 
+- **flake8**: Linter for code quality
+
+### Running formatting checks
+
+```bash
+# Check formatting
+make style-check
+
+# Fix formatting
+make style-fix
+
+# Check only changed files
+make style-check-changed
+make style-fix-changed
+```
+
+### Using tox
+
+```bash
+# Check formatting
+tox -e black,isort
+
+# Check linting
+tox -e flake8
+
+# Run all formatting and linting checks
+tox -e black,isort,flake8
+```
 
 ## Documentation build