ollama/examples/python-simplechat/readme.md
Dr Nic Williams e8aaea030e
Update 'llama2' -> 'llama3' in most places (#4116)
* Update 'llama2' -> 'llama3' in most places

---------

Co-authored-by: Patrick Devine <patrick@infrahq.com>
2024-05-03 15:25:04 -04:00

44 lines
1.5 KiB
Markdown

# Simple Chat Example
The **chat** endpoint is one of two ways to generate text from an LLM with Ollama, and is introduced in version 0.1.14. At a high level, you provide the endpoint an array of objects with a role and content specified. Then with each output and prompt, you add more of those role/content objects, which builds up the history.
## Running the Example
1. Ensure you have the `llama3` model installed:
```bash
ollama pull llama3
```
2. Install the Python Requirements.
```bash
pip install -r requirements.txt
```
3. Run the example:
```bash
python client.py
```
## Review the Code
You can see in the **chat** function that actually calling the endpoint is done simply with:
```python
r = requests.post(
"http://0.0.0.0:11434/api/chat",
json={"model": model, "messages": messages, "stream": True},
)
```
With the **generate** endpoint, you need to provide a `prompt`. But with **chat**, you provide `messages`. And the resulting stream of responses includes a `message` object with a `content` field.
The final JSON object doesn't provide the full content, so you will need to build the content yourself.
In the **main** function, we collect `user_input` and add it as a message to our messages and that is passed to the chat function. When the LLM is done responding the output is added as another message.
## Next Steps
In this example, all generations are kept. You might want to experiment with summarizing everything older than 10 conversations to enable longer history with less context being used.