gstreamer – Issues importing gtstreamer in python
You may want to try editing the PYTHONPATH environment variable to include that directory (separate the paths by semicolons). Example: Add
C:program filesOSSBuildGStreamer to the end
Per this answer here: https://stackoverflow.com/a/4855685/1124529
Also, you may want to check to make sure that in that GStreamer folder there is a file called
pygst.py since that is how the module will look. If not, you may have downloaded the wrong thing.