# Namespaces: Toolkits

Toolkits > Namespaces

## Namespaces

com.ibm.streamsx.topology
  Stream types supporting interchange of streams between IBM Streams applications implemented in different languages.
com.ibm.streamsx.topology.python
  Python Support: Support for Python with IBM Streams.
com.ibm.streamsx.topology.topic
  Topic based publish-subscribe model supporting a microservice architecture style for Streams applications.