Minor fixes to PyPI package build procedure. Stubbed out a more pythonic API

packages/pypi/README.md

@@ -21,6 +21,9 @@ while True:
 
 ## Building
 
+ - install SWIG
+ - `make wrapper`
+
 ### macOS, Linux
 
 Binary distribution: 
@@ -57,5 +60,8 @@ Cleanup:
 
 clean.bat
 
+## Installing from a locally-built package/wheel
+
+ - `pip3 install dist/<package_name>.whl`
 
 *Note: As there appears to be no way to differentiate C and C++ code (and thus pass correct build args to each type) in a setuptools script we must separately build the `lwip` and `http_parser` libraries, copy them here, and then build the binary. See the top-level [README.md](../../README.md) for instructions on how to do that*