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Reword the details of how textual run finds an app

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It seems the docs are lagging behind the code here, so this commit attempts
to update them so they're more in line with how `textual run` works.
This commit is contained in:
Dave Pearson
2022-10-13 15:26:54 +01:00
parent ceb531e535
commit 4a6e4ff025
1 changed files with 1 additions and 1 deletions
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docs/guide/devtools.md
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@@ -23,7 +23,7 @@ You can run Textual apps with the `run` subcommand. If you supply a path to a Py
textual run my_app.py
```
The `run` sub-command assumes you have an `App` instance called `app` in the global scope of your Python file. If the application is called something different, you can specify it with a colon following the filename:
The `run` sub-command will look to see if you have an `App` instance called `app` in the global scope of your Python file and will use that if it does. If not it will then look to see if there is a class that inherits from `App` and it will create and `run` an instance of that. Finally, you can specify the application instance to run with a colon following the filename:
```bash
textual run my_app.py:alternative_app