runtime error

Traceback (most recent call last): File "/home/user/app/app.py", line 3, in <module> from pandasai import PandasAI File "/home/user/.local/lib/python3.9/site-packages/pandasai/__init__.py", line 7, in <module> from pandasai.smart_dataframe import SmartDataframe File "/home/user/.local/lib/python3.9/site-packages/pandasai/smart_dataframe/__init__.py", line 26, in <module> from pandasai.agent.base import Agent File "/home/user/.local/lib/python3.9/site-packages/pandasai/agent/__init__.py", line 1, in <module> from .base import Agent File "/home/user/.local/lib/python3.9/site-packages/pandasai/agent/base.py", line 8, in <module> from pandasai.pipelines.chat.chat_pipeline_input import ( File "/home/user/.local/lib/python3.9/site-packages/pandasai/pipelines/__init__.py", line 3, in <module> from .pipeline import Pipeline File "/home/user/.local/lib/python3.9/site-packages/pandasai/pipelines/pipeline.py", line 8, in <module> from pandasai.helpers.query_exec_tracker import QueryExecTracker File "/home/user/.local/lib/python3.9/site-packages/pandasai/helpers/query_exec_tracker.py", line 10, in <module> from pandasai.connectors import BaseConnector File "/home/user/.local/lib/python3.9/site-packages/pandasai/connectors/__init__.py", line 10, in <module> from .polars import PolarsConnector File "/home/user/.local/lib/python3.9/site-packages/pandasai/connectors/polars.py", line 9, in <module> import polars as pl ModuleNotFoundError: No module named 'polars'

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