These docs are for version 1.x of Rasa Open Source.

• Docs for the new version 2.0 can be found here.

Installation

Quick Installation

You can install Rasa Open Source using pip (requires Python 3.6 or 3.7).

$ pip3 install rasa

• Having trouble installing? Read our step-by-step installation guide.
• You can also build Rasa Open Source from source.
• For advanced installation options such as building from source and installation instructions for custom pipelines, head over here.

Congratulations! You have successfully installed Rasa Open Source!

Step-by-step Installation Guide

1. Install the Python development environment

Check if your Python environment is already configured:

$ python3 --version
$ pip3 --version

2. Create a virtual environment (strongly recommended)

Tools like virtualenv and virtualenvwrapper provide isolated Python environments, which are cleaner than installing packages systemwide (as they prevent dependency conflicts).

3. Install Rasa Open Source

You can now head over to the tutorial.

Building from Source

If you want to use the development version of Rasa Open Source, you can get it from GitHub:

$ curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | python
$ git clone https://github.com/RasaHQ/rasa.git
$ cd rasa
$ poetry install

NLU Pipeline Dependencies

Several NLU components have additional dependencies that need to be installed separately.

How do I choose a pipeline?

The page on Choosing a Pipeline will help you pick the right pipeline for your assistant.

I have decided on a pipeline. How do I install the dependencies for it?

When you install Rasa Open Source, the dependencies for the supervised_embeddings - TensorFlow and sklearn_crfsuite get automatically installed. However, spaCy and MITIE need to be separately installed if you want to use pipelines containing components from those libraries.

Dependencies for spaCy

For more information on spaCy, check out the spaCy docs. You can install it with the following commands:

$ pip install rasa[spacy]
$ python -m spacy download en_core_web_md
$ python -m spacy link en_core_web_md en

Dependencies for MITIE

First, run

$ pip install git+https://github.com/mit-nlp/MITIE.git
$ pip install rasa[mitie]

and then download the MITIE models. The file you need is total_word_feature_extractor.dat. Save this anywhere. If you want to use MITIE, you need to tell it where to find this file.

👋 I can help you get started with Rasa and answer your technical questions.