So I pieced this out into a much simpler application … and while it’s still not working, I was able to get a better stack trace.
Any ideas?
Here again is the call:
@app.post("/predict")
async def predict(image: UploadFile=File(...)):
img_bytes = await image.read()
pred_class, pred_class_idx, probs = inf_learn.predict(img_bytes)
return {
"predicted_class": pred_class,
"probability": classes[probs]
}
… and after all the complaints about _FakeLoader not having a noops attribute, I get this:
INFO: 127.0.0.1:52607 - "POST /predict HTTP/1.1" 500 Internal Server Error
ERROR: Exception in ASGI application
Traceback (most recent call last):
File "/Users/admin/Development/_tools/anaconda/envs/fastapi_test_app/lib/python3.7/site-packages/uvicorn/protocols/http/httptools_impl.py", line 385, in run_asgi
result = await app(self.scope, self.receive, self.send)
File "/Users/admin/Development/_tools/anaconda/envs/fastapi_test_app/lib/python3.7/site-packages/uvicorn/middleware/proxy_headers.py", line 45, in __call__
return await self.app(scope, receive, send)
File "/Users/admin/Development/_tools/anaconda/envs/fastapi_test_app/lib/python3.7/site-packages/fastapi/applications.py", line 149, in __call__
await super().__call__(scope, receive, send)
File "/Users/admin/Development/_tools/anaconda/envs/fastapi_test_app/lib/python3.7/site-packages/starlette/applications.py", line 102, in __call__
await self.middleware_stack(scope, receive, send)
File "/Users/admin/Development/_tools/anaconda/envs/fastapi_test_app/lib/python3.7/site-packages/starlette/middleware/errors.py", line 181, in __call__
raise exc from None
File "/Users/admin/Development/_tools/anaconda/envs/fastapi_test_app/lib/python3.7/site-packages/starlette/middleware/errors.py", line 159, in __call__
await self.app(scope, receive, _send)
File "/Users/admin/Development/_tools/anaconda/envs/fastapi_test_app/lib/python3.7/site-packages/starlette/exceptions.py", line 82, in __call__
raise exc from None
File "/Users/admin/Development/_tools/anaconda/envs/fastapi_test_app/lib/python3.7/site-packages/starlette/exceptions.py", line 71, in __call__
await self.app(scope, receive, sender)
File "/Users/admin/Development/_tools/anaconda/envs/fastapi_test_app/lib/python3.7/site-packages/starlette/routing.py", line 550, in __call__
await route.handle(scope, receive, send)
File "/Users/admin/Development/_tools/anaconda/envs/fastapi_test_app/lib/python3.7/site-packages/starlette/routing.py", line 227, in handle
await self.app(scope, receive, send)
File "/Users/admin/Development/_tools/anaconda/envs/fastapi_test_app/lib/python3.7/site-packages/starlette/routing.py", line 41, in app
response = await func(request)
File "/Users/admin/Development/_tools/anaconda/envs/fastapi_test_app/lib/python3.7/site-packages/fastapi/routing.py", line 166, in app
dependant=dependant, values=values, is_coroutine=is_coroutine
File "/Users/admin/Development/_tools/anaconda/envs/fastapi_test_app/lib/python3.7/site-packages/fastapi/routing.py", line 119, in run_endpoint_function
return await dependant.call(**values)
File "./main.py", line 40, in predict
pred_class, pred_class_idx, probs = inf_learn.predict(img_bytes)
File "/Users/admin/Development/_tools/anaconda/envs/fastapi_test_app/lib/python3.7/site-packages/fastai2/learner.py", line 231, in predict
inp,preds,_,dec_preds = self.get_preds(dl=dl, with_input=True, with_decoded=True)
File "/Users/admin/Development/_tools/anaconda/envs/fastapi_test_app/lib/python3.7/site-packages/fastai2/learner.py", line 219, in get_preds
self._do_epoch_validate(dl=dl)
File "/Users/admin/Development/_tools/anaconda/envs/fastapi_test_app/lib/python3.7/site-packages/fastai2/learner.py", line 178, in _do_epoch_validate
dl,*_ = change_attrs(dl, names, old, has); self('after_validate')
File "/Users/admin/Development/_tools/anaconda/envs/fastapi_test_app/lib/python3.7/site-packages/fastai2/learner.py", line 124, in __call__
def __call__(self, event_name): L(event_name).map(self._call_one)
File "/Users/admin/Development/_tools/anaconda/envs/fastapi_test_app/lib/python3.7/site-packages/fastcore/foundation.py", line 372, in map
return self._new(map(g, self))
File "/Users/admin/Development/_tools/anaconda/envs/fastapi_test_app/lib/python3.7/site-packages/fastcore/foundation.py", line 323, in _new
def _new(self, items, *args, **kwargs): return type(self)(items, *args, use_list=None, **kwargs)
File "/Users/admin/Development/_tools/anaconda/envs/fastapi_test_app/lib/python3.7/site-packages/fastcore/foundation.py", line 41, in __call__
res = super().__call__(*((x,) + args), **kwargs)
File "/Users/admin/Development/_tools/anaconda/envs/fastapi_test_app/lib/python3.7/site-packages/fastcore/foundation.py", line 314, in __init__
items = list(items) if use_list else _listify(items)
File "/Users/admin/Development/_tools/anaconda/envs/fastapi_test_app/lib/python3.7/site-packages/fastcore/foundation.py", line 250, in _listify
if is_iter(o): return list(o)
File "/Users/admin/Development/_tools/anaconda/envs/fastapi_test_app/lib/python3.7/site-packages/fastcore/foundation.py", line 216, in __call__
return self.fn(*fargs, **kwargs)
File "/Users/admin/Development/_tools/anaconda/envs/fastapi_test_app/lib/python3.7/site-packages/fastai2/learner.py", line 127, in _call_one
[cb(event_name) for cb in sort_by_run(self.cbs)]
File "/Users/admin/Development/_tools/anaconda/envs/fastapi_test_app/lib/python3.7/site-packages/fastai2/learner.py", line 127, in <listcomp>
[cb(event_name) for cb in sort_by_run(self.cbs)]
File "/Users/admin/Development/_tools/anaconda/envs/fastapi_test_app/lib/python3.7/site-packages/fastai2/callback/core.py", line 24, in __call__
if self.run and _run: getattr(self, event_name, noop)()
File "/Users/admin/Development/_tools/anaconda/envs/fastapi_test_app/lib/python3.7/site-packages/fastai2/callback/core.py", line 95, in after_validate
if self.with_input: self.inputs = detuplify(to_concat(self.inputs, dim=self.concat_dim))
File "/Users/admin/Development/_tools/anaconda/envs/fastapi_test_app/lib/python3.7/site-packages/fastai2/torch_core.py", line 213, in to_concat
if is_listy(xs[0]): return type(xs[0])([to_concat([x[i] for x in xs], dim=dim) for i in range_of(xs[0])])
IndexError: list index out of range