obsws-python/README.md

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# A Python SDK for OBS Studio WebSocket v5.0
Not all endpoints in the official documentation are implemented.
## Requirements
- [OBS Studio](https://obsproject.com/)
- [OBS Websocket v5 Plugin](https://github.com/obsproject/obs-websocket/releases/tag/5.0.0)
- With the release of OBS Studio version 28, Websocket plugin is included by default. But it should be manually installed for earlier versions of OBS.
- Python 3.9 or greater
### How to install using pip
```
pip install obsws-python
```
### How to Use
By default the clients connect with parameters:
- `host`: "localhost"
- `port`: 4455
- `password`: ""
- `timeout`: None
You may override these parameters by storing them in a toml config file or passing them as keyword arguments.
Order of precedence: keyword arguments then config file then default values.
#### `config file`
A valid `config.toml` might look like this:
```toml
[connection]
host = "localhost"
port = 4455
password = "mystrongpass"
```
It should be placed in your user home directory.
#### Otherwise:
Example `__main__.py`:
```python
import obsws_python as obs
# pass conn info if not in config.toml
cl = obs.ReqClient(host='localhost', port=4455, password='mystrongpass', timeout=3)
# Toggle the mute state of your Mic input
cl.toggle_input_mute('Mic/Aux')
```
### Requests
Method names for requests match the API calls but snake cased.
example:
```python
# load conn info from config.toml
cl = obs.ReqClient()
# GetVersion
resp = cl.get_version()
# SetCurrentProgramScene
cl.set_current_program_scene("BRB")
```
For a full list of requests refer to [Requests](https://github.com/obsproject/obs-websocket/blob/master/docs/generated/protocol.md#requests)
### Events
When registering a callback function use the name of the expected API event in snake case form, prepended with "on\_".
example:
```python
# load conn info from config.toml
cl = obs.EventClient()
def on_scene_created(data):
...
# SceneCreated
cl.callback.register(on_scene_created)
def on_input_mute_state_changed(data):
...
# InputMuteStateChanged
cl.callback.register(on_input_mute_state_changed)
# returns a list of currently registered events
print(cl.callback.get())
# You may also deregister a callback
cl.callback.deregister(on_input_mute_state_changed)
```
`register(fns)` and `deregister(fns)` accept both single functions and lists of functions.
For a full list of events refer to [Events](https://github.com/obsproject/obs-websocket/blob/master/docs/generated/protocol.md#events)
### Attributes
For both request responses and event data you may inspect the available attributes using `attrs()`.
example:
```python
resp = cl.get_version()
print(resp.attrs())
def on_scene_created(data):
print(data.attrs())
```
### Errors
If a request fails an `OBSSDKError` will be raised with a status code.
For a full list of status codes refer to [Codes](https://github.com/obsproject/obs-websocket/blob/master/docs/generated/protocol.md#requeststatus)
If a timeout occurs during sending/receiving a request or receiving an event an `OBSSDKTimeoutError` will be raised.
### Logging
If you want to see the raw messages simply set log level to DEBUG
example:
```python
import obsws_python as obs
import logging
logging.basicConfig(level=logging.DEBUG)
...
```
### Tests
First install development dependencies:
`pip install -e .['dev']`
To run all tests:
```
pytest -v
```
### Official Documentation
For the full documentation:
- [OBS Websocket SDK](https://github.com/obsproject/obs-websocket/blob/master/docs/generated/protocol.md#obs-websocket-501-protocol)