Add python-multipart, which is needed by nodes

[cmsj]

I'm not quite sure why this isn't being installed by fastapi's dependencies, but running without it installed yields:

root@gnubert:/srv/ssdtank/docker/invokeai/git/InvokeAI# docker run --gpus all -p 9989:9090 -v /srv/ssdtank/docker/invokeai/data:/data -v /srv/ssdtank/docker/invokeai/git/InvokeAI/static/dream_web/:/static/dream_web --rm -ti -u root --entrypoint /bin/bash ghcr.io/cmsj/invokeai-nodes@sha256:426ebc414936cb67e02f5f64d963196500a77b2f485df8122a2d462797293938
root@7a77b56a5771:/usr/src# /invoke-new.py --web
Form data requires "python-multipart" to be installed.
You can install "python-multipart" with:

pip install python-multipart

╭─────────────────────────────── Traceback (most recent call last) ────────────────────────────────╮
│ /invoke-new.py:22 in <module>                                                                    │
│                                                                                                  │
│   19                                                                                             │
│   20                                                                                             │
│   21 if __name__ == '__main__':                                                                  │
│ ❱ 22 │   main()                                                                                  │
│   23                                                                                             │
│                                                                                                  │
│ /invoke-new.py:13 in main                                                                        │
│                                                                                                  │
│   10 │   os.chdir(os.path.abspath(os.path.join(os.path.dirname(__file__), "..")))                │
│   11 │                                                                                           │
│   12 │   if '--web' in sys.argv:                                                                 │
│ ❱ 13 │   │   from invokeai.app.api_app import invoke_api                                         │
│   14 │   │   invoke_api()                                                                        │
│   15 │   else:                                                                                   │
│   16 │   │   # TODO: Parse some top-level args here.                                             │
│                                                                                                  │
│ /usr/src/InvokeAI/lib/python3.10/site-packages/invokeai/app/api_app.py:17 in <module>            │
│                                                                                                  │
│    14                                                                                            │
│    15 from ..backend import Args                                                                 │
│    16 from .api.dependencies import ApiDependencies                                              │
│ ❱  17 from .api.routers import images, sessions, models                                          │
│    18 from .api.sockets import SocketIO                                                          │
│    19 from .invocations import *                                                                 │
│    20 from .invocations.baseinvocation import BaseInvocation                                     │
│                                                                                                  │
│ /usr/src/InvokeAI/lib/python3.10/site-packages/invokeai/app/api/routers/images.py:45 in <module> │
│                                                                                                  │
│   42 │   │   404: {"description": "Session not found"},                                          │
│   43 │   },                                                                                      │
│   44 )                                                                                           │
│ ❱ 45 async def upload_image(file: UploadFile, request: Request):                                 │
│   46 │   if not file.content_type.startswith("image"):                                           │
│   47 │   │   return Response(status_code=415)                                                    │
│   48                                                                                             │
│                                                                                                  │
│ /usr/src/InvokeAI/lib/python3.10/site-packages/fastapi/routing.py:630 in decorator               │
│                                                                                                  │
│    627 │   │   ),                                                                                │
│    628 │   ) -> Callable[[DecoratedCallable], DecoratedCallable]:                                │
│    629 │   │   def decorator(func: DecoratedCallable) -> DecoratedCallable:                      │
│ ❱  630 │   │   │   self.add_api_route(                                                           │
│    631 │   │   │   │   path,                                                                     │
│    632 │   │   │   │   func,                                                                     │
│    633 │   │   │   │   response_model=response_model,                                            │
│                                                                                                  │
│ /usr/src/InvokeAI/lib/python3.10/site-packages/fastapi/routing.py:569 in add_api_route           │
│                                                                                                  │
│    566 │   │   current_generate_unique_id = get_value_or_default(                                │
│    567 │   │   │   generate_unique_id_function, self.generate_unique_id_function                 │
│    568 │   │   )                                                                                 │
│ ❱  569 │   │   route = route_class(                                                              │
│    570 │   │   │   self.prefix + path,                                                           │
│    571 │   │   │   endpoint=endpoint,                                                            │
│    572 │   │   │   response_model=response_model,                                                │
│                                                                                                  │
│ /usr/src/InvokeAI/lib/python3.10/site-packages/fastapi/routing.py:444 in __init__                │
│                                                                                                  │
│    441 │   │   │   │   0,                                                                        │
│    442 │   │   │   │   get_parameterless_sub_dependant(depends=depends, path=self.path_format),  │
│    443 │   │   │   )                                                                             │
│ ❱  444 │   │   self.body_field = get_body_field(dependant=self.dependant, name=self.unique_id)   │
│    445 │   │   self.app = request_response(self.get_route_handler())                             │
│    446 │                                                                                         │
│    447 │   def get_route_handler(self) -> Callable[[Request], Coroutine[Any, Any, Response]]:    │
│                                                                                                  │
│ /usr/src/InvokeAI/lib/python3.10/site-packages/fastapi/dependencies/utils.py:756 in              │
│ get_body_field                                                                                   │
│                                                                                                  │
│   753 │   │   alias="body",                                                                      │
│   754 │   │   field_info=BodyFieldInfo(**BodyFieldInfo_kwargs),                                  │
│   755 │   )                                                                                      │
│ ❱ 756 │   check_file_field(final_field)                                                          │
│   757 │   return final_field                                                                     │
│   758                                                                                            │
│                                                                                                  │
│ /usr/src/InvokeAI/lib/python3.10/site-packages/fastapi/dependencies/utils.py:111 in              │
│ check_file_field                                                                                 │
│                                                                                                  │
│   108 │   │   │   │   raise RuntimeError(multipart_incorrect_install_error) from None            │
│   109 │   │   except ImportError:                                                                │
│   110 │   │   │   logger.error(multipart_not_installed_error)                                    │
│ ❱ 111 │   │   │   raise RuntimeError(multipart_not_installed_error) from None                    │
│   112                                                                                            │
│   113                                                                                            │
│   114 def get_param_sub_dependant(                                                               │
╰──────────────────────────────────────────────────────────────────────────────────────────────────╯
RuntimeError: Form data requires "python-multipart" to be installed.
You can install "python-multipart" with:

pip install python-multipart

[cmsj]

Seems to be expected that fastapi doesn't declare a dependency on python-multipart and it should be installed manually ¯\(ツ)/¯
https://fastapi.tiangolo.com/tutorial/request-files/

[lstein]

LGTM