[PATCH 2/7] python/qemu: formalize as package

[John Snow <jsnow@redhat.com>]

NB: I am choosing Python 3.6 here. Although our minimum requirement is
3.5, this code is used only by iotests (so far) under which we have been
using a minimum version of 3.6.

3.6 is being preferred here for variable type hint capability, which
enables us to use mypy for this package.

RFC: This uses the version tags of the parent tree here, so packages
will be installed as e.g. 5.0.0, 5.1.0-rc0, etc.

Pros:
 - Easy to tell which versions of QEMU it supports
 - Simple

Cons:
 - Implies semver, which we do NOT follow for QEMU releases
 - Implies the package is in a stable state


We could also start a separate versioning for just the Python SDK at
e.g. 0.1;

Pros:
 - We can use semver, which is expected of Python packaging
 - Allows us to break compatibility for 0.x releases

Cons:
 - More complex, the mapping from SDK version to QEMU version
   is less obvious
 - Requires someone to manage a secondary version commit for
   the Python SDK.

Or, perhaps, we could start versioning with 0.5.0.0, 0.5.1.0, etc to
combine a bit of both flavors; bumping the major version number only
when incompatible changes to the Python interface itself are made,
treating the major version number more like an epoch.

Signed-off-by: John Snow <jsnow@redhat.com>
---
 python/README.rst |  6 ++++++
 python/setup.py   | 50 +++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 56 insertions(+)
 create mode 100644 python/README.rst
 create mode 100755 python/setup.py

diff --git a/python/README.rst b/python/README.rst
new file mode 100644
index 00000000000..25f6d93fd5f
--- /dev/null
+++ b/python/README.rst
@@ -0,0 +1,6 @@
+QEMU Python Tooling
+-------------------
+
+This package provides QEMU tooling used by the QEMU project to build,
+configure, and test QEMU. It is not a fully-fledged SDK and it is subject
+to change at any time.
diff --git a/python/setup.py b/python/setup.py
new file mode 100755
index 00000000000..f897ceac970
--- /dev/null
+++ b/python/setup.py
@@ -0,0 +1,50 @@
+#!/usr/bin/env3 python
+"""
+QEMU tooling installer script
+Copyright (c) 2020 John Snow for Red Hat, Inc.
+"""
+
+import setuptools
+
+def main():
+    """
+    QEMU tooling installer
+    """
+
+    kwargs = {
+        'name': 'qemu',
+        'use_scm_version': {
+            'root': '..',
+            'relative_to': __file__,
+        },
+        'maintainer': 'QEMU Developer Team',
+        'maintainer_email': 'qemu-devel@nongnu.org',
+        'url': 'https://www.qemu.org/',
+        'download_url': 'https://www.qemu.org/download/',
+        'packages': setuptools.find_namespace_packages(),
+        'description': 'QEMU Python Build, Debug and SDK tooling.',
+        'classifiers': [
+            'Development Status :: 5 - Production/Stable',
+            'License :: OSI Approved :: GNU General Public License v2 (GPLv2)',
+            'Natural Language :: English',
+            'Operating System :: OS Independent',
+        ],
+        'platforms': [],
+        'keywords': [],
+        'setup_requires': [
+            'setuptools',
+            'setuptools_scm',
+        ],
+        'install_requires': [
+        ],
+        'python_requires': '>=3.6',
+        'long_description_content_type': 'text/x-rst',
+    }
+
+    with open("README.rst", "r") as fh:
+        kwargs['long_description'] = fh.read()
+
+    setuptools.setup(**kwargs)
+
+if __name__ == '__main__':
+    main()
-- 
2.21.3