Config plot libraries

pandasai/assets/prompt_templates/generate_python_code.tmpl

@@ -6,6 +6,8 @@ You are provided with the following pandas DataFrames:
 {conversation}
 </conversation>
 
+{viz_library_type}
+
 This is the initial python function. Do not change the params. Given the context, use the right dataframes.
 ```python
 {current_code}

pandasai/helpers/viz_library_types/__init__.py

@@ -0,0 +1,63 @@
+import logging
+from typing import Union, Optional
+from .base import VisualizationLibrary
+
+from ._viz_library_types import (
+    MatplotlibVizLibraryType,
+    PlotlyVizLibraryType,
+    SeabornVizLibraryType,
+)
+from .. import Logger
+
+
+viz_lib_map = {
+    VisualizationLibrary.MATPLOTLIB.value: MatplotlibVizLibraryType,
+    VisualizationLibrary.PLOTLY.value: PlotlyVizLibraryType,
+    VisualizationLibrary.SEABORN.value: SeabornVizLibraryType,
+}
+
+
+def viz_lib_type_factory(
+    viz_lib_type: str = None, logger: Optional[Logger] = None
+) -> Union[MatplotlibVizLibraryType, PlotlyVizLibraryType, SeabornVizLibraryType,]:
+    """
+    Factory function to get appropriate instance for viz library type.
+
+    Uses `viz_library_types_map` to determine the viz library type class.
+
+    Args:
+        viz_lib_type (Optional[str]): A name of the viz library type.
+            Defaults to None, an instance of `DefaultVizLibraryType` will be
+            returned.
+        logger (Optional[str]): If passed, collects logs about correctness
+            of the `viz_library_type` argument and what kind of VizLibraryType
+            is created.
+
+    Returns:
+        (Union[
+                MatplotlibVizLibraryType,
+                PlotlyVizLibraryType,
+                SeabornVizLibraryType,
+                DefaultVizLibraryType
+        ]): An instance of the output type.
+    """
+
+    if viz_lib_type is not None and viz_lib_type not in viz_lib_map and logger:
+        possible_types_msg = ", ".join(f"'{type_}'" for type_ in viz_lib_map)
+        logger.log(
+            f"Unknown value for the parameter `viz_library_type`: '{viz_lib_type}'."
+            f"Possible values are: {possible_types_msg} and None for default "
+            f"viz library type (miscellaneous).",
+            level=logging.WARNING,
+        )
+
+    viz_lib_default = MatplotlibVizLibraryType
+    viz_lib_type_helper = viz_lib_map.get(viz_lib_type, viz_lib_default)()
+
+    if logger:
+        logger.log(
+            f"{viz_lib_type_helper.__class__} is going to be used.", level=logging.DEBUG
+        )
+
+    return viz_lib_type_helper
+

pandasai/helpers/viz_library_types/_viz_library_types.py

@@ -0,0 +1,88 @@
+from abc import abstractmethod, ABC
+from typing import Any, Iterable
+
+
+class BaseVizLibraryType(ABC):
+    @property
+    @abstractmethod
+    def template_hint(self) -> str:
+        ...
+
+    @property
+    @abstractmethod
+    def name(self) -> str:
+        ...
+
+    def _validate_type(self, actual_type: str) -> bool:
+        if actual_type != self.name:
+            return False
+        return True
+
+    def validate(self, result: dict[str, Any]) -> tuple[bool, Iterable[str]]:
+        """
+        Validate 'type' and 'constraint' from the result dict.
+
+        Args:
+            result (dict[str, Any]): The result of code execution in
+                dict representation. Should have the following schema:
+                {
+                    "viz_library_type": <viz_library_name>
+                }
+
+        Returns:
+             (tuple(bool, Iterable(str)):
+                Boolean value whether the result matches output type
+                and collection of logs containing messages about
+                'type' mismatches.
+        """
+        validation_logs = []
+        actual_type = result.get("type")
+
+        type_ok = self._validate_type(actual_type)
+        if not type_ok:
+            validation_logs.append(
+                f"The result dict contains inappropriate 'type'. "
+                f"Expected '{self.name}', actual '{actual_type}'."
+            )
+
+        return type_ok, validation_logs
+
+
+class MatplotlibVizLibraryType(BaseVizLibraryType):
+    @property
+    def template_hint(self):
+        return """When a user requests to create a chart, utilize the Python matplotlib 
+        library to generate high-quality graphics that will be saved 
+        directly to a file. 
+        If you import matplotlib use the 'agg' backend for rendering plots."""
+
+    @property
+    def name(self):
+        return "matplotlib"
+
+
+class PlotlyVizLibraryType(BaseVizLibraryType):
+    @property
+    def template_hint(self):
+        return """When a user requests to create a chart, utilize the Python plotly 
+        library to generate high-quality graphics that will be saved 
+        directly to a file. 
+        If you import matplotlib use the 'agg' backend for rendering plots."""
+
+    @property
+    def name(self):
+        return "plotly"
+
+
+class SeabornVizLibraryType(BaseVizLibraryType):
+    @property
+    def template_hint(self):
+        return """When a user requests to create a chart, utilize the Python Seaborn 
+        library to generate high-quality graphics that will be saved 
+        directly to a file. 
+        If you import matplotlib use the 'agg' backend for rendering plots."""
+
+    @property
+    def name(self):
+        return "seaborn"
+

pandasai/helpers/viz_library_types/base.py

@@ -0,0 +1,20 @@
+from enum import Enum
+
+
+class VisualizationLibrary(str, Enum):
+    """
+    VisualizationLibrary is an enumeration that represents the available
+    data visualization libraries.
+
+    Attributes:
+        MATPLOTLIB (str): Represents the Matplotlib library.
+        SEABORN (str): Represents the Seaborn library.
+        PLOTLY (str): Represents the Plotly library.
+    """
+
+    MATPLOTLIB = "matplotlib"
+    SEABORN = "seaborn"
+    PLOTLY = "plotly"
+
+    DEFAULT = "default"
+

pandasai/schemas/df_config.py

@@ -6,6 +6,7 @@
 from ..callbacks.base import BaseCallback
 from ..llm import LLM, LangchainLLM
 from ..exceptions import LLMNotFoundError
+from ..helpers.viz_library_types.base import VisualizationLibrary
 
 
 class LogServerConfig(TypedDict):
@@ -32,6 +33,7 @@ class Config(BaseModel):
     lazy_load_connector: bool = True
     response_parser: Type[ResponseParser] = None
     llm: Any = None
+    data_viz_library: Optional[VisualizationLibrary] = None
     log_server: LogServerConfig = None
 
     class Config:

pandasai/smart_dataframe/__init__.py

@@ -723,4 +723,4 @@ def __repr__(self):
         return self.dataframe.__repr__()
 
     def __len__(self):
-        return len(self.dataframe)
+        return len(self.dataframe)

pandasai/smart_datalake/__init__.py

@@ -28,6 +28,7 @@
 from pandasai.helpers.query_exec_tracker import QueryExecTracker
 
 from ..helpers.output_types import output_type_factory
+from ..helpers.viz_library_types import viz_lib_type_factory
 from pandasai.responses.context import Context
 from pandasai.responses.response_parser import ResponseParser
 from ..llm.base import LLM
@@ -45,6 +46,7 @@
 from ..middlewares.base import Middleware
 from ..helpers.df_info import DataFrameType
 from ..helpers.path import find_project_root
+from ..helpers.viz_library_types.base import VisualizationLibrary
 from ..exceptions import AdvancedReasoningDisabledError
 
 
@@ -68,6 +70,8 @@ class SmartDatalake:
     _last_result: str = None
     _last_error: str = None
 
+    _viz_lib: str = None
+
     def __init__(
         self,
         dfs: List[Union[DataFrameType, Any]],
@@ -117,6 +121,9 @@ def __init__(
         else:
             self._response_parser = ResponseParser(context)
 
+        if self._config.data_viz_library:
+            self._viz_lib = self._config.data_viz_library.value
+
         self._conversation_id = uuid.uuid4()
 
         self._instance = self.__class__.__name__
@@ -191,6 +198,10 @@ def _load_config(self, config: Union[Config, dict]):
             self._load_llm(config["llm"])
             config["llm"] = self._llm
 
+        if config.get("data_viz_library"):
+            self._load_data_viz_library(config["data_viz_library"])
+            config["data_viz_library"] = self._data_viz_library
+
         self._config = Config(**config)
 
     def _load_llm(self, llm: LLM):
@@ -211,6 +222,21 @@ def _load_llm(self, llm: LLM):
 
         self._llm = llm
 
+    def _load_data_viz_library(self, data_viz_library: str):
+        """
+        Load the appropriate instance for viz library type to use.
+
+        Args:
+            data_viz_library (enum): TODO
+
+        Raises:
+            TODO
+        """
+
+        self._data_viz_library = VisualizationLibrary.DEFAULT.value
+        if data_viz_library in (item.value for item in VisualizationLibrary):
+            self._data_viz_library = data_viz_library
+
     def add_middlewares(self, *middlewares: Optional[Middleware]):
         """
         Add middlewares to PandasAI instance.
@@ -273,7 +299,6 @@ def _get_prompt(
             prompt.set_var(key, value)
 
         self.logger.log(f"Using prompt: {prompt}")
-
         return prompt
 
     def _get_cache_key(self) -> str:
@@ -333,6 +358,7 @@ def chat(self, query: str, output_type: Optional[str] = None):
 
         try:
             output_type_helper = output_type_factory(output_type, logger=self.logger)
+            viz_lib_helper = viz_lib_type_factory(self._viz_lib, logger=self.logger)
 
             if (
                 self._config.enable_cache
@@ -349,6 +375,7 @@ def chat(self, query: str, output_type: Optional[str] = None):
                     # TODO: find a better way to determine the engine,
                     "engine": self._dfs[0].engine,
                     "output_type_hint": output_type_helper.template_hint,
+                    "viz_library_type": viz_lib_helper.template_hint,
                 }
 
                 if (