[PATCH v2 10/13] pypi: Add packaging documentation for developers

[Rob Woolley <rob.woolley@windriver.com>]

Signed-off-by: Rob Woolley <rob.woolley@windriver.com>
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 contrib/pypi/BUILD.md | 50 +++++++++++++++++++++++++++++++++++++++++++
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 create mode 100644 contrib/pypi/BUILD.md

diff --git a/contrib/pypi/BUILD.md b/contrib/pypi/BUILD.md
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+# Development Instructions
+
+## Requirements
+
+- Python >= 3.9
+- pip >= 19 (for installation)
+
+## Testing
+
+To lint the `bitbake-setup` pypi packaging, run the ruff tool.
+```bash
+ruff check bin/bitbake-setup contrib/pypi
+```
+
+The steps to build and test the `bitbake-setup` pypi packaging have been automated with the `bitbake-selftest` tool.  This tool automatically creates a Python virtual environment for you.
+
+Run the bitbake-selftest
+```bash
+BB_SKIP_PYPI_TESTS=no bin/bitbake-selftest -v bb.tests.setup.PyPIPackagingTest
+```
+
+## Packaging
+
+### Create the development sandbox
+
+To create the development sandbox run:
+```bash
+contrib/pypi/package-bitbake-setup.py
+cd packaging_workshop
+```
+
+### Building the package
+
+To install the development tools manually run:
+```bash
+python3 -m pip install -e '.[dev]'
+```
+
+To build a wheel (.whl) then use:
+```bash
+python3 -m build
+```
+
+This produces a wheel (.whl) file in the dist directory.  This may be installed using pip.
+
+### Installing the package
+
+```bash
+python3 -m pip install dist/bitbake_setup-*-py3-none-any.whl
+```
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2.49.0