failed to import module in another jupyter notebook

Question

I have 2 jupyter notebooks, first one is named friedman_1.ipynb and I defined a class. In 2nd jupyter notebook, I can import it without error. However I got an error when calling the class method. see below. Thanks for your help.

class Friedman1Test:
    """This class encapsulates the Friedman1 regression test for feature selection
    """

    VALIDATION_SIZE = 0.20
    NOISE = 1.0

    def __init__(self, numFeatures, numSamples, randomSeed):
        """
        :param numFeatures: total number of features to be used (at least 5)
        :param numSamples: number of samples in dataset
        :param randomSeed: random seed value used for reproducible results
        """

        self.numFeatures = numFeatures
        self.numSamples = numSamples
        self.randomSeed = randomSeed

in 2nd jupyter notebook, I am trying to import the module and call its class method, then I got an error


from ipynb.fs.full.friedman_1 import *

# create the Friedman-1 test class:
friedman = friedman_1.Friedman1Test(NUM_OF_FEATURES, NUM_OF_SAMPLES, RANDOM_SEED)
friedman

---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
<ipython-input-12-48edeee5c421> in <module>
      1 # create the Friedman-1 test class:
----> 2 friedman = friedman_1.Friedman1Test(NUM_OF_FEATURES, NUM_OF_SAMPLES, RANDOM_SEED)
      3 friedman

NameError: name 'friedman_1' is not defined

call Friedman1Test() directly instead of the friedman_1.Friedman1Test(), as mentioned in my answer. — Akshay Sehgal
– Akshay Sehgal, Commented Aug 15, 2021 at 20:47

anarchy · Accepted Answer · 2021-08-15 20:52:09Z

1

Try this


from ipynb.fs.full.friedman_1 import *

# create the Friedman-1 test class:
friedman = Friedman1Test(NUM_OF_FEATURES, NUM_OF_SAMPLES, RANDOM_SEED)
friedman

You have already imported the class when you use the asterisk, you just need to call the class constructor directly.

edited Aug 15, 2021 at 20:52

answered Aug 15, 2021 at 20:46

anarchy

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Akshay Sehgal · Accepted Answer · 2021-08-15 20:45:29Z

1

You are already importing all the functions and classes into the notebook. Try the following directly. -

from ipynb.fs.full.friedman_1 import *

friedman = Friedman1Test(NUM_OF_FEATURES, NUM_OF_SAMPLES, RANDOM_SEED)
friedman

answered Aug 15, 2021 at 20:45

Akshay Sehgal

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