python click passing multiple key values as options - python-click

Question

I am using python-click and I would like to pass values with a format like this
myprogram mycommand --parameter param1=value1 --parameter param2=value2
I was looking at click option documentation but I can't find any construct that could help with this, the only solution I can find is invoking a callback function and check that the string is properly constructed <key>=<value>, then elaborate the values properly.
Nothing bad in that solution, but I was wondering if there is a more elegant way to handle this since the pattern looks to be common enough.

Answer 1

So, I've had a go at it. I've managed to do it the following ways.
Firstly, I've tried this, though it doesn't satisfy the --parameter criteria.
#click.command("test")
#click.argument("args", nargs=-1)
def test(args):
args = dict([arg.split("=") for arg in args])
print(args)
so when invoking like test param1=test1 param2=test the output is:
{'param1': 'test1', 'param2': 'test2' }
Secondly, I thought about a multiple option, combined with a variadic argument, which seems to be closer to your requirements:
test -p param1=test -p param2=test
#click.command("test")
#click.option('-p', '--parameter', multiple=True)
#click.argument("args", nargs=-1)
def test(*args, **kwargs):
param_args = kwargs['parameter']
param_args = dict([p.split('=') for p in param_args])
print(param_args)
if __name__ == '__main__':
test()
The output will be the same as the previous case.
If you were to print(kwargs['parameter']), you'd get
('param1=test', 'param2=test')
It sounds a bit more cleaner than using a callback, but not by much. Still, hope it helps.