How can I call click wrapped function as normal?

Question

I have a command as:

import click

@click.command()
@click.option('--count', default=1)
def test(count):
    click.echo('Count: %d' % count)

How can I call this test(...) as normal Python function?

I tried to call the function as test("123"), but received exception:

Error: Got unexpected extra arguments (1 2 3)

So, assuming that the test(...) function comes with a third-party package and I can't modify anything in the function, how can I call this test(...) function?

score 2 · Answer 1 · edited Oct 04 '20 at 03:42

2

Click calls this out as an antipattern, and recommends you do things like:

import click

@click.command()
@click.option('--count', default=1)
def test(count):
    result = _test(count)
    click.echo(result)

def _test(count):
    return f"Count: {count}"

Structuring your code in this way draws a clear separation between your API and your business logic, which is typically useful.

edited Oct 04 '20 at 03:42

Stephen Rauch

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answered Oct 03 '20 at 07:25

Adam Smith

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make sense. Unfortunately, I want to call a click wrapped function from a third-party package. – JPG Oct 03 '20 at 07:32
you can perhaps do `context.invoke` to ask `click` to make the call for you? – Adam Smith Oct 03 '20 at 07:33
Would you mind adding an example for me? – JPG Oct 03 '20 at 07:35

How can I call click wrapped function as normal?

1 Answers1