facing issues while downloading CAMS data

[sghbpp]

Unable to download CAMS data.

error - TypeError: cannot unpack non-iterable NoneType object
Code -

    import pandas as pd 
    import pvlib
    
    latitude = 56.2639 
    longitude = 9.5018  
    start_date_str = '2022-01-07'  
    end_date_str = '2022-01-09' 
    email = 'please use yours'  #  registered email address with SoDa


    # Convert string dates to datetime objects
    start_date = pd.to_datetime(start_date_str)
    end_date = pd.to_datetime(end_date_str)



    # Retrieve the data using the pvlib.iotools.get_cams function
    data, metadata = pvlib.iotools.get_cams(latitude= latitude, longitude= longitude, start = start_date, 
                                            end= end_date, email= email, identifier='cams_radiation',
                                            altitude=None, time_step='1min', time_ref='UT', verbose=False, integrated=False,
                                            label=None, map_variables=True, server='www.soda-is.com', timeout=30)
    # Display the retrieved data and metadata
    print("Data:")
    print(data.head())  # Display the first few rows of the retrieved data
    print("\nMetadata:")
    print(metadata)  # Display the metadata of the requested time-series

error
Traceback (most recent call last):

File ~\anaconda3\lib\site-packages\spyder_kernels\py3compat.py:356 in compat_exec
exec(code, globals, locals)

File c:\users............\python codes\iotools\cams\cams.py:23
data, metadata = pvlib.iotools.get_cams(latitude= latitude, longitude= longitude, start = start_date,

TypeError: cannot unpack non-iterable NoneType object

[AdamRJensen]

@sghbpp I am able to reproduce the error when I use an email that is not registered on the SoDa portal. However, when I use a registered email, the code snippet above works just fine.

Fortunately, the error message handling is currently being updated, which should provide more helpful error messages in the future (see #1799 and #1905)

In the future, please post potential code bugs as issues instead of in the discussion section.

[sghbpp]

Thanks @AdamRJensen for your response.

Actually although i had registered and created an account of soda portal, but i had not accepted their terms and conditions, which i did by logging into their portal. And, now i am able to download the data. Many thanks.

However, it would be better if we could also include other parameters like temperature, humidity, etc.

[AdamRJensen]

@sghbpp the CAMS service does not have those parameters. You may check out pvgis for those or get them straight from ERA5 (although this is a bit tedious at the moment)