Error while using Uvicorn main:app --reload

[KarthikChimkode]

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Example Code

from fastapi import FastAPI

app = FastAPI()


@app.get("/")
def root():
    return {"message": "welcome to my api"}

@app.get("/post")
def get_posts():
    return {"data": "this is tour data"}

Description

i am changing the path in @app.get then it works fine with univorn main:app but if i use --reload it throws
INFO: Shutting down
INFO: Waiting for application shutdown.
INFO: Application shutdown complete.
INFO: Finished server process [14500]
Process SpawnProcess-1:
Traceback (most recent call last):
File "C:\Users\karth\AppData\Local\Programs\Python\Python311\Lib\asyncio\runners.py", line 118, in run
return self._loop.run_until_complete(task)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\karth\AppData\Local\Programs\Python\Python311\Lib\asyncio\base_events.py", line 653, in run_until_complete
return future.result()
^^^^^^^^^^^^^^^
asyncio.exceptions.CancelledError

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "C:\Users\karth\AppData\Local\Programs\Python\Python311\Lib\multiprocessing\process.py", line 314, in _bootstrap
self.run()
File "C:\Users\karth\AppData\Local\Programs\Python\Python311\Lib\multiprocessing\process.py", line 108, in run
self._target(*self._args, **self._kwargs)
File "C:\Users\karth\Projects\Fastapi\venv\Lib\site-packages\uvicorn_subprocess.py", line 78, in subprocess_started
target(sockets=sockets)
File "C:\Users\karth\Projects\Fastapi\venv\Lib\site-packages\uvicorn\server.py", line 65, in run
return asyncio.run(self.serve(sockets=sockets))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\karth\AppData\Local\Programs\Python\Python311\Lib\asyncio\runners.py", line 190, in run
return runner.run(main)
^^^^^^^^^^^^^^^^
File "C:\Users\karth\AppData\Local\Programs\Python\Python311\Lib\asyncio\runners.py", line 123, in run
raise KeyboardInterrupt()
KeyboardInterrupt
INFO: Started server process [16988]
INFO: Waiting for application startup.
INFO: Application startup complete.
this

Operating System

Windows

Operating System Details

No response

FastAPI Version

0.110.1

Pydantic Version

2.6.4

Python Version

Python 3.11.3

Additional Context

No response

[angad-singhh]

I am getting the same error, if found any solution comment down

[KarthikChimkode]

No not found any solution use it without -- reload that's the only way it's not throwing errors

…

On Sun, 5 May, 2024, 11:07 pm Angad Singh, ***@***.***> wrote: I am getting the same error — Reply to this email directly, view it on GitHub <#11435 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AX2DFCMT4ZXTKMKO2FIGDG3ZAZU7PAVCNFSM6AAAAABGF3C7S6VHI2DSMVQWIX3LMV43SRDJONRXK43TNFXW4Q3PNVWWK3TUHM4TGMRRGE2TI> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[angad-singhh]

I checked the uvicorn GitHub issues for this, found the fix : resolve, the problem only exist in the current version of uvicorn==0.29.0 , rest it is working fine in any previous versions like 0.28.1 or 0.27.1 etc.

[KarthikChimkode]

Awesome, thanks for the update! And how can I change the version

…

On Mon, 6 May, 2024, 12:16 pm Angad Singh, ***@***.***> wrote: I checked the uvicorn GitHub issues for this, found the fix : resolve, the problem only exist in the current version of uvicorn==0.29.0 , rest it is working fine in any previous versions like 0.28.1 or 0.27.1 etc. — Reply to this email directly, view it on GitHub <#11435 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AX2DFCIZIQ726CSHLNU34QLZA4RMPAVCNFSM6AAAAABGF3C7S6VHI2DSMVQWIX3LMV43SRDJONRXK43TNFXW4Q3PNVWWK3TUHM4TGMRVGI2TA> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[angad-singhh]

You can download any FastAPI version using pip install fastapi=={version name}

[KarthikChimkode]

Thank you!!!

…

On Mon, 13 May, 2024, 8:18 pm Angad Singh, ***@***.***> wrote: You can download any FastAPI version using pip install fastapi=={version name} — Reply to this email directly, view it on GitHub <#11435 (reply in thread)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AX2DFCLPQUQHHPZJW3M2BR3ZCDHFDAVCNFSM6AAAAABGF3C7S6VHI2DSMVQWIX3LMV43SRDJONRXK43TNFXW4Q3PNVWWK3TUHM4TIMRRHA4TO> . You are receiving this because you authored the thread.Message ID: ***@***.***>