Hi,

I was running the recipe/plugin in dataiku and encountered the above error.
below is an extract of the traceback.

*************** Recipe code failed **************
[09:50:49] [INFO] [dku.utils] - Begin Python stack
[09:50:49] [INFO] [dku.utils] - Traceback (most recent call last):
[09:50:49] [INFO] [dku.utils] - File "pandas/_libs/parsers.pyx", line 1156, in pandas._libs.parsers.TextReader._convert_tokens
[09:50:49] [INFO] [dku.utils] - TypeError: Cannot cast array data from dtype('O') to dtype('bool') according to the rule 'safe'
[09:50:49] [INFO] [dku.utils] - During handling of the above exception, another exception occurred:
[09:50:49] [INFO] [dku.utils] - Traceback (most recent call last):
[09:50:49] [INFO] [dku.utils] - File "/home/dataiku/dss/jobs/compute_Responses_Lemmatize_NP/custom-python-recipe/pyoutAqiJYccVwKv8/python-exec-wrapper.py", line 208, in
[09:50:49] [INFO] [dku.utils] - exec(f.read())
[09:50:49] [INFO] [dku.utils] - File "", line 27, in
[09:50:49] [INFO] [dku.utils] - File "/home/dataiku/dss/plugins/installed/nlp-preparation/python-lib/dku_io_utils.py", line 79, in process_dataset_chunks
[09:50:49] [INFO] [dku.utils] - for i, df in tqdm(enumerate(df_iterator), total=len_iterator, unit="chunk", mininterval=1.0):
[09:50:49] [INFO] [dku.utils] - File "/home/dataiku/dss/code-envs/python/plugin_nlp-preparation_managed/lib/python3.6/site-packages/tqdm/std.py", line 1178, in iter
[09:50:49] [INFO] [dku.utils] - for obj in iterable:
[09:50:49] [INFO] [dku.utils] - File "/home/dataiku/dataiku-dss-9.0.4/python/dataiku/core/dataset.py", line 611, in iter_dataframes
[09:50:49] [INFO] [dku.utils] - for df in df_it:
[09:50:49] [INFO] [dku.utils] - File "/home/dataiku/dss/code-envs/python/plugin_nlp-preparation_managed/lib64/python3.6/site-packages/pandas/io/parsers.py", line 1007, in next
[09:50:49] [INFO] [dku.utils] - return self.get_chunk()
[09:50:49] [INFO] [dku.utils] - File "/home/dataiku/dss/code-envs/python/plugin_nlp-preparation_managed/lib64/python3.6/site-packages/pandas/io/parsers.py", line 1070, in get_chunk
[09:50:49] [INFO] [dku.utils] - return self.read(nrows=size)
[09:50:49] [INFO] [dku.utils] - File "/home/dataiku/dss/code-envs/python/plugin_nlp-preparation_managed/lib64/python3.6/site-packages/pandas/io/parsers.py", line 1036, in read
[09:50:49] [INFO] [dku.utils] - ret = self._engine.read(nrows)
[09:50:49] [INFO] [dku.utils] - File "/home/dataiku/dss/code-envs/python/plugin_nlp-preparation_managed/lib64/python3.6/site-packages/pandas/io/parsers.py", line 1848, in read
[09:50:49] [INFO] [dku.utils] - data = self._reader.read(nrows)
[09:50:49] [INFO] [dku.utils] - File "pandas/_libs/parsers.pyx", line 876, in pandas._libs.parsers.TextReader.read
[09:50:49] [INFO] [dku.utils] - File "pandas/_libs/parsers.pyx", line 903, in pandas._libs.parsers.TextReader._read_low_memory
[09:50:49] [INFO] [dku.utils] - File "pandas/_libs/parsers.pyx", line 968, in pandas._libs.parsers.TextReader._read_rows
[09:50:49] [INFO] [dku.utils] - File "pandas/_libs/parsers.pyx", line 1094, in pandas._libs.parsers.TextReader._convert_column_data
[09:50:49] [INFO] [dku.utils] - File "pandas/_libs/parsers.pyx", line 1164, in pandas._libs.parsers.TextReader._convert_tokens
[09:50:49] [INFO] [dku.utils] - ValueError: cannot safely convert passed user dtype of bool for object dtyped data in column 32

this happened for spell checking and text cleaning.
Hope you could shed some light on this.

Thank you