the 'package' argument is required to perform a relative import

[xianbaoqian]

Describe the bug

Failed to run gradio app.py due the following error.

Looks that there are some weirdness with uvicorn. Could I be installed the wrong version?

Thx

Is there an existing issue for this?

• I have searched the existing issues

Reproduction

• python -m venv env
• export PATH=env/bin:$PATH
• pip install gradio
• gradio app.py

(env) wangtz@Tiezhens-MBP hf-puller % gradio app.py

Launching in reload mode on: http://127.0.0.1:7860 (Press CTRL+C to quit)

Watching: '/Users/wangtz/projects/tools/hf-puller/env/lib/python3.9/site-packages/gradio', '.'

Process SpawnProcess-1:
Traceback (most recent call last):
File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.9/lib/python3.9/multiprocessing/process.py", line 315, in _bootstrap
self.run()
File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.9/lib/python3.9/multiprocessing/process.py", line 108, in run
self._target(*self._args, **self._kwargs)
File "/Users/wangtz/projects/tools/hf-puller/env/lib/python3.9/site-packages/uvicorn/_subprocess.py", line 76, in subprocess_started
target(sockets=sockets)
File "/Users/wangtz/projects/tools/hf-puller/env/lib/python3.9/site-packages/uvicorn/server.py", line 60, in run
return asyncio.run(self.serve(sockets=sockets))
File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.9/lib/python3.9/asyncio/runners.py", line 44, in run
return loop.run_until_complete(main)
File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.9/lib/python3.9/asyncio/base_events.py", line 642, in run_until_complete
return future.result()
File "/Users/wangtz/projects/tools/hf-puller/env/lib/python3.9/site-packages/uvicorn/server.py", line 67, in serve
config.load()
File "/Users/wangtz/projects/tools/hf-puller/env/lib/python3.9/site-packages/uvicorn/config.py", line 477, in load
self.loaded_app = import_from_string(self.app)
File "/Users/wangtz/projects/tools/hf-puller/env/lib/python3.9/site-packages/uvicorn/importer.py", line 21, in import_from_string
module = importlib.import_module(module_str)
File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.9/lib/python3.9/importlib/init.py", line 122, in import_module
raise TypeError(msg.format(name))
TypeError: the 'package' argument is required to perform a relative import for '.Users.wangtz.projects.tools.hf-puller.app'

Screenshot

Logs

Watching: '/Users/wangtz/projects/tools/hf-puller/env/lib/python3.9/site-packages/gradio', '.'

Process SpawnProcess-1:
Traceback (most recent call last):
  File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.9/lib/python3.9/multiprocessing/process.py", line 315, in _bootstrap
    self.run()
  File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.9/lib/python3.9/multiprocessing/process.py", line 108, in run
    self._target(*self._args, **self._kwargs)
  File "/Users/wangtz/projects/tools/hf-puller/env/lib/python3.9/site-packages/uvicorn/_subprocess.py", line 76, in subprocess_started
    target(sockets=sockets)
  File "/Users/wangtz/projects/tools/hf-puller/env/lib/python3.9/site-packages/uvicorn/server.py", line 60, in run
    return asyncio.run(self.serve(sockets=sockets))
  File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.9/lib/python3.9/asyncio/runners.py", line 44, in run
    return loop.run_until_complete(main)
  File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.9/lib/python3.9/asyncio/base_events.py", line 642, in run_until_complete
    return future.result()
  File "/Users/wangtz/projects/tools/hf-puller/env/lib/python3.9/site-packages/uvicorn/server.py", line 67, in serve
    config.load()
  File "/Users/wangtz/projects/tools/hf-puller/env/lib/python3.9/site-packages/uvicorn/config.py", line 477, in load
    self.loaded_app = import_from_string(self.app)
  File "/Users/wangtz/projects/tools/hf-puller/env/lib/python3.9/site-packages/uvicorn/importer.py", line 21, in import_from_string
    module = importlib.import_module(module_str)
  File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.9/lib/python3.9/importlib/__init__.py", line 122, in import_module
    raise TypeError(msg.format(name))
TypeError: the 'package' argument is required to perform a relative import for '.Users.wangtz.projects.tools.hf-puller.app'

System Info

Macbook

(env) wangtz@Tiezhens-MBP hf-puller % python
Python 3.9.6 (default, Sep 26 2022, 11:37:49)
[Clang 14.0.0 (clang-1400.0.29.202)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import gradio
gradio.>>> gradio.__version__
'3.16.2'
>>> import uvicorn
>>> uvicorn.__version__
'0.20.0'

Severity

serious, but I can work around it

[freddyaboulton]

Thanks for filing @xianbaoqian !

This was fixed in #2992 and will be out in the next release.