CODEWITHSUNDEEP
dask
Yosmely Bermùdez
Yosmely Bermùdez

Reputation: 11

Dask compute command issues

I am trying to put together the results of some operations to generate seismic attributes and place it in a dask dataframe together with the compute command but it generates the following error:

AttributeError: 'NoneType' object has no attribute 'array_wrap'

This is the code I am using:

sys.path.append('./d2geo/attributes')

from d2geo.attributes.CompleTrace import ComplexAttributes
from d2geo.attributes.SignalProcess import SignalProcess

complex_att = ComplexAttributes()
signal_process = SignalProcess()

def amplitude_arr(input_cube):
    return da.from_array(input_cube)

# List of tuples with attribute name, the function 
# to run (with cube as input) and additional kwargs dict.
funcs = [
    ('Amplitude', amplitude_arr, {}),
    ('Envelope', complex_att.envelope, {}),
    ('Instantaneous Phase', complex_att.instantaneous_phase, {}),
    ('Instantaneous Frequency', complex_att.instantaneous_frequency, {}),
    ('Instantaneous Bandwidth', complex_att.instantaneous_bandwidth, {}),
    ('Dominant Frequency', complex_att.dominant_frequency, {}),
    ('Cosine Instantaneous Phase', complex_att.cosine_instantaneous_phase, {}),
    ('Second Derivative', signal_process.second_derivative, {}),
    ('Reflection Intensity', signal_process.reflection_intensity, {})
]

dataframe = run_attributes(cube, funcs).compute()
dataframe.tail()

Upvotes: 1

Views: 363

Answers (1)

ncclementi
ncclementi

Reputation: 51

this doesn't seem to be necessarily a Dask problem. I believe that what is happening here is that somewhere in the process of applying these functions, you are ending up with a variable that is None and you are trying to access the attribute array_wrap, and that is what is causing the error. For a more detailed explanation, you can check Why do I get AttributeError: 'NoneType' object has no attribute 'something'?

Upvotes: 2

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