How to fix 'NameError' name 'xxx' is not defined

Parul_ch

Hi,

While running a python recipe for generating 2 output datasets, getting an error :

<class 'NameError'>: name 'ptk_ddd_df' is not defined

in #Write recipe outputs, in this line ptk_ddd.write_with_schema(ptk_ddd_df):

# Write recipe outputs
ptk_ddd = dataiku.Dataset("PTK_DDD")

ptk_ddd.write_with_schema(ptk_ddd_df)

dtd_ptk = dataiku.Dataset("DTD_PTK")
dtd_ptk.write_with_schema(dtd_ptk_df)

Kindly suggest.

Thanks,

Parul.

(Topic title edited by moderator to be more descriptive. Original title "Using Dataiku")

JuanE

Hello,

That error is thrown by the Python interpreter, letting you know that ptk_ddd_df has not been previously defined before using it. You are supposed to implement the logic in Python that populates a Pandas dataframe (the variable you are missing, in this case) that is then written to the dataset. This is what the boilerplate code looks like for a Python recipe writing to two output datasets (a and b) should look like:

# -*- coding: utf-8 -*-
import dataiku
import pandas as pd, numpy as np
from dataiku import pandasutils as pdu

# Compute recipe outputs
# TODO: Write here your actual code that computes the outputs
# NB: DSS supports several kinds of APIs for reading and writing data. Please see doc.

# It is up to you to implement the logic below that will create pandas dataframes (a_df and b_df) that will then be written to the dataset
a_df = ... # Compute a Pandas dataframe to write into a
b_df = ... # Compute a Pandas dataframe to write into b

# Write recipe outputs
a = dataiku.Dataset("a")
a.write_with_schema(a_df)
b = dataiku.Dataset("b")
b.write_with_schema(b_df)

I hope that clarifies it. If you still need help, please share your entire recipe code so that we can inspect it.

Parul_ch

Hi,

Thanks for the clarity.

-Parul.