I am having issues using the TabularPandas object.

When requesting the object definition with


the following is printed:

Object `TabularPandas` not found.

And when using it to assign categorical and continuous variables, as lesson 9 suggested, by running

to = TabularPandas(df, procs, cat, cont, y_names = input, splits = splits)

the following name error is printed:

NameError: name 'TabularPandas' is not defined

My understanding is that TabularPandas is defined in the fastai library. I have included the collaborative filtering, and tabular portions of the library and all of pandas:

from fastai.collab import *
from fastai.tabular import *
from pandas import *

Am I missing a library? Was TabularPandas updated or changed in recent iterations of the fastai library?

Help is appreciated.


It appears as if the library to include has changed from fastai.tabular to fastai.tabular.core. This resolved the issue I had and is consistent with current documentation.

You’re trying to import fastai the old way. Do from fastai.tabular.all import *

This gives the error

ModuleNotFoundError: No module named 'fastai.tabular.all'

This worked once but is not a sustainable solution.

Are you sure fastai v2 is installed? If it’s in colab you need to run pip install fastai -U each time.

You can check with pip show fastai

I was not on version 2, but I have upgraded now by running

!pip install fastai -Uqq

from fastai.tabular.all import * still does not work and now gives the following error:

ModuleNotFoundError: No module named 'fastai.callback.all'; 'fastai.callback' is not a package

Restart your runtime then try

Yes, this worked.

The original issue occurred because an out-of-date version of the fastai library and out-of-date import commands were used.

The solution has been to

  • make sure the most current version of fastai is being used by running !pip install fastai -Uqq (-U indicates that the library should be updated),
  • restart the runtime using Runtime > Restart runtime in the menu, and
  • import fastai.tabular.all instead of fastai.tabular or fastai.tabular.core with the following line of code:
from fastai.tabular.all import *

Thank you @muellerzr.

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Any ideas why dtreeviz would not be working despite including the updated library with

!pip install -Uqq waterfallcharts treeinterpreter dtreeviz



dtreeviz(m,xs.iloc[samp_idx],y.iloc[samp_idx],xs.columns,"input",fontname='DejaVu Sans',scale = 1.6,label_fontsize=10,orientation='LR')

throws the following error:

NameError: name 'dtreeviz' is not defined
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