Python: Copy Python extractor to codeql repo

python/extractor/setup.py

@@ -0,0 +1,33 @@
+#!/usr/bin/env python
+
+#This file needs to be able to handle all versions of Python we are likely to encounter
+#Which is probably 3.0 and upwards
+
+'''Run buildtools/install.py'''
+
+import sys
+import os
+import subprocess
+from python_tracer import getzipfilename
+
+if 'SEMMLE_DIST' in os.environ:
+    if 'CODEQL_EXTRACTOR_PYTHON_ROOT' not in os.environ:
+        os.environ['CODEQL_EXTRACTOR_PYTHON_ROOT'] = os.environ['SEMMLE_DIST']
+else:
+    os.environ["SEMMLE_DIST"] = os.environ["CODEQL_EXTRACTOR_PYTHON_ROOT"]
+
+tools = os.path.join(os.environ['SEMMLE_DIST'], "tools")
+zippath = os.path.join(tools, getzipfilename())
+sys.path = [ zippath ] + sys.path
+
+# these are imported from the zip
+from buildtools.discover import discover
+import buildtools.install
+
+def main():
+    version, root, requirement_files = discover()
+    buildtools.install.main(version, root, requirement_files)
+
+
+if __name__ == "__main__":
+    main()