ImportError: cannot import name 'KoalasFrame' from 'databricks.koalas'

Question

I got below warning and error

from databricks.koalas import KoalasFrame

WARNING:root:Found pyspark version "3.5.0" installed. The pyspark version 3.2 and above has a built-in "pandas APIs on Spark" module ported from Koalas. Try `import pyspark.pandas as ps` instead. 
WARNING:root:'PYARROW_IGNORE_TIMEZONE' environment variable was not set. It is required to set this environment variable to '1' in both driver and executor sides if you use pyarrow>=2.0.0. Koalas will set it for you but it does not work if there is a Spark context already launched.


ImportError                               Traceback (most recent call last)
cnrl\users\yongnual\Data\Spyder_workplace\DTS_dashboard\pandas2_high_performance_testing.ipynb Cell 18 line 1
----> 1 from databricks.koalas import KoalasFrame

ImportError: cannot import name 'KoalasFrame' from 'databricks.koalas' (c:\Anaconda\envs\dash2\lib\site-packages\databricks\koalas\__init__.py)

Answer 1

There is no module KoalasFrame in databricks.koalas

pip install databricks
pip install koalas
pip install pyspark

from databricks.koalas import KoalasFrame

#Error
ImportError: cannot import name 'KoalasFrame' from 'databricks.koalas'

You can check the methods available in databricks.koalas by:

dir(databricks.koalas)

['DataFrame',
 'Index',
 'LooseVersion',
 'MultiIndex',
 'NamedAgg',
 'Series',
 '__all__',
 '__builtins__',
 '__cached__',
 '__doc__',
 '__file__',
 '__loader__',
 '__name__',
 '__package__',
 '__path__',
 '__spec__',
 '__version__',
 '__warningregistry__',
 '_auto_patch',
 'assert_pyspark_version',
 'broadcast',
 'concat',
 'from_pandas',
 'get_dummies',
 'get_option',
 'groupby',
 'isna',
 'isnull',
 'melt',
 'merge',
 'namespace',
 'notna',
 'notnull',
 'option_context',
 'options',
 'os',
 'pandas_wraps',
 'pyarrow',
 'pyspark',
 'range',
 'read_clipboard',
 'read_csv',
 'read_delta',
 'read_excel',
 'read_html',
 'read_json',
 'read_parquet',
 'read_spark_io',
 'read_sql',
 'read_sql_query',
 'read_sql_table',
 'read_table',
 'reset_option',
 'set_option',
 'sql',
 'to_datetime',
 'to_numeric']

---

I assume that you mean:

from databricks.koalas import DataFrame

https://koalas.readthedocs.io/en/latest/reference/api/databricks.koalas.DataFrame.html