I want to display the weather in the chat using PyOWM, it gives an error, how to solve it?

Question

Python

Instead of API KEY, my key is hidden, just in case

Error:
raise MissingRequiredArgument(param)
discord.ext.commands.errors.MissingRequiredArgument: arg is a required argument that is missing.

The code:

# weather
@client.command()
async def w( ctx, *, arg ):
    owm = pyowm.OWM( 'API KEY' )
    city = arg
 
    observation = owm.weather_at_place( city )
    w = observation.get_weather()
    temperature = w.get_temperature( 'celsius' )[ 'temp' ]
 
    await ctx.send( f'Температура в { city } : { temperature }' )

Answer 1

What command do you send to discord?