Comments (2)
I'm not sure using typer like that on an init method is actually supported. I think having your CLI be a simple method is really to be preferred. Try putting the CLI into its own method, and then call whatever program logic you have from there, like this for example:
import typer
from typing import Optional
from datetime import datetime
class Some:
# your class impl
pass
def main(start_date: Optional[datetime] = None, stop_date: Optional[datetime] = None):
Some(start_date, stop_date).run()
if __name__ == "__main__":
typer.run(main)
from typer.
You can totally use a constructor as a typer command. However, it's pretty confusing! I would recommend @jonaslb's approach above instead. But if you really want to... the trick is to decorate the class instead of the initializer:
from typing import Optional
import typer
app = typer.Typer()
@app.command()
class Some:
def __init__(self, start_date: Optional[str] = None, stop_date: Optional[str] = None) -> None:
self.start = start_date
self.stop = stop_date
self.run()
def run(self):
print(f"{self.start} - {self.stop}")
if __name__ == "__main__":
app()
Then
$ /usr/bin/python3 main.py --start-date 2023-01-01 --stop-date 2023-12-31
2023-01-01 - 2023-12-31
However, your code as written has a few other problems. The biggest one to me is trying to use the return value of the typer entry point. You shouldn't run any code after calling app()
. Make sure all the code you want to execute is inside your command.
from typer.
Related Issues (20)
- Default value for optional multi-value argument HOT 4
- Accept environment variables named by convention when envvar is not set HOT 4
- New setting to increase the width of the rich (exception) output HOT 1
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- Documentation is misleading. new `typer.run` behavior HOT 2
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- Using `some_type | None` syntax for type annotations causes error in python 3.11 HOT 12
- unlimited argument for an option with comma spliter HOT 1
- TAB completion is giving local directory files where command is called. HOT 2
- Support for bytes in Options and Arguments HOT 2
- Is it possible to include a Prolog in `--help` HOT 2
- Get the typer output with html format to provide it to termynal HOT 5
- Support for localization of messages HOT 1
- Auto-completion when application works in 2 modes (GUI, CLI) HOT 1
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from typer.