Add setup.py

Author: gpotter2

setup.py

@@ -0,0 +1,44 @@
+#! /usr/bin/env python
+
+"""
+Scapy-real: we raise an error and ask people to move away.
+"""
+
+import warnings
+from setuptools import setup
+from setuptools.command.install import install
+
+
+long_description = """
+# Scapy-real is outdated. Please use Scapy instead #
+
+This project only exists for historical reasons, and should
+not be used.
+
+Links to scapy:
+ - PyPi: https://pypi.org/project/scapy/
+ - GitHub: https://github.com/secdev/scapy/
+ - Website: https://scapy.net/
+"""
+
+class PostInstallCommand(install):
+  """Post-installation for installation mode."""
+
+  def run(self):
+    pad_desc = "\n" + "\n".join(("#" * 60,) * 3) + "\n"
+    warnings.warn(pad_desc + long_description + pad_desc,
+                  DeprecationWarning, stacklevel=0)
+
+
+setup(
+    name='scapy-real',
+    packages=['scapy-real'],
+    version='2.3',
+    zip_safe=False,
+    description='Legacy Scapy - Do not use',
+    long_description=long_description,
+    author='Philippe BIONDI',
+    cmdclass={
+        'install': PostInstallCommand,
+    },
+)