Add reload to docs

[Zengyf-CVer]

Describe the bug

@abidlabs
When executing gradio app.py, a bug was found. When the variable is demo, it runs normally and can be reloaded. But when the variable is demo1 or other, the program will report an error:

• normal operation:

import gradio as gr


def greet(name):
    return "Hello " + name + "!!"

demo = gr.Interface(fn=greet, inputs="text", outputs="text")

if __name__ == "__main__":
    demo.launch()

• bug:

import gradio as gr


def greet(name):
    return "Hello " + name + "!!"

demo1 = gr.Interface(fn=greet, inputs="text", outputs="text")

if __name__ == "__main__":
    demo1.launch()

Is there an existing issue for this?

• I have searched the existing issues

Reproduction

Error message:

ERROR:    Error loading ASGI app. Attribute "demo.app" not found in module "app".

Screenshot

No response

Logs

No response

System Info

gradio 3.0.5
ubuntu 20.04
chrome

Severity

annoying

[omerXfaruq]

You need to run
gradio app.py demo1

Keeping issue open until this is added to docs

[omerXfaruq]

We need to add reload mode commands to docs, see here

[omerXfaruq]

Template:

$ gradio app.py, to run app.py in reload mode where any changes in the app.py file or Gradio library reloads the demo.
$ gradio app.py my_demo, to use variable names other than "demo"

gif

[Zengyf-CVer]

@farukozderim @aliabd
When I execute the code below via gradio app.py demo1, I get an error:

import gradio as gr


def greet(name):
    return "Hello " + name + "!!"

demo1 = gr.Interface(fn=greet, inputs="text", outputs="text")

if __name__ == "__main__":
    demo1.launch()

error:

Launching in *reload mode* on: http://127.0.0.1:7861 (Press CTRL+C to quit)

Error: Option '--reload-dir' requires an argument.

config:

gradio 3.0.6
ubuntu 20.04
chrome

[omerXfaruq]

Thx for reporting @Zengyf-CVer, it is a known issue and should be fixed in the next version.
You could use the latest beta releases if you wish to
https://pypi.org/project/gradio/#history

[freddyaboulton]

Going to close as we already have a guide for reload mode here: https://gradio.app/developing_faster_with_reload_mode/

We're going to make this guide more visible in #1857