[V5] openbb-charting: Refactor for V5 and Decouple (#7545)

* refactor charting for v5 patterns and decouple entirely

* coveragerc

* lint and tests

* fix tests

* configure dev group with openbb-technical

* ty

* fix cli test

* remove 3.15 from test matrix - dependencies are unstable

---------

Co-authored-by: deeleeramone <>

cli/openbb_cli/config/completer.py

@@ -4,6 +4,7 @@ from collections.abc import Callable, Iterable, Mapping
 from re import Pattern
 from typing import (
     Any,
+    cast,
 )
 
 from prompt_toolkit.completion import CompleteEvent, Completer, Completion
@@ -65,8 +66,7 @@ class WordCompleter(Completer):
     ) -> Iterable[Completion]:
         """Get completions."""
         words = self.words
-        if callable(words):
-            words = words()  # ty: ignore[call-top-callable]
+        word_list = cast("list[str]", words if isinstance(words, list) else words())
 
         if self.sentence:
             word_before_cursor = document.text_before_cursor
@@ -97,7 +97,7 @@ class WordCompleter(Completer):
                 return word_before_cursor in word
             return word.startswith(word_before_cursor)
 
-        for a in words:
+        for a in word_list:
             if word_matches(a):
                 display = self.display_dict.get(a, a)
                 display_meta = self.meta_dict.get(a, "")

cli/openbb_cli/controllers/cli_controller.py

@@ -269,7 +269,7 @@ class CLIController(BaseController):
                 bound_method = MethodType(method_call_command, self)
                 bound_method = update_wrapper(
                     partial(bound_method, router=router),
-                    method_call_command,  # ty: ignore[invalid-argument-type]
+                    method_call_command,
                 )
 
             setattr(self, f"call_{router}", bound_method)

cli/openbb_cli/controllers/utils.py

@@ -7,13 +7,14 @@ import random
 import re
 import shutil
 import sqlite3
+import subprocess
 import sys
 from contextlib import contextmanager
 from datetime import (
     datetime,
 )
 from pathlib import Path
-from typing import TYPE_CHECKING, Optional
+from typing import Any
 from zoneinfo import ZoneInfo, available_timezones
 
 import numpy as np
@@ -27,11 +28,6 @@ from rich.table import Table
 from openbb_cli.config.constants import AVAILABLE_FLAIRS, ENV_FILE_SETTINGS
 from openbb_cli.session import Session
 
-if TYPE_CHECKING:
-    from openbb_charting.core.openbb_figure import (  # ty: ignore[unresolved-import]
-        OpenBBFigure,
-    )
-
 
 class SQLiteTable:
     """Lazy-loading wrapper for SQLite tables."""
@@ -857,7 +853,7 @@ def export_data(  # noqa: PLR0912
     func_name: str,
     df: pd.DataFrame = pd.DataFrame(),
     sheet_name: str | None = None,
-    figure: Optional["OpenBBFigure"] = None,
+    figure: Any = None,
     margin: bool = True,
 ) -> None:
     """Export data to a file.
@@ -874,7 +870,7 @@ def export_data(  # noqa: PLR0912
         Dataframe of data to save.
     sheet_name : str | None
         The name of the sheet to save in excel file.
-    figure : OpenBBFigure | None
+    figure : Any
         Figure object to save as image file.
     margin : bool
         Automatically adjust subplot parameters to give specified padding.
@@ -997,7 +993,9 @@ def export_data(  # noqa: PLR0912
 
 def system_clear():
     """Clear screen."""
-    os.system("cls||clear")  # noqa: S605, S607
+    subprocess.run(  # noqa: S602
+        "cls" if os.name == "nt" else "clear", shell=True, check=False
+    )
 
 
 def request(
@@ -1070,7 +1068,7 @@ def handle_obbject_display(
 ):
     """Handle the display of an OBBject."""
     df: pd.DataFrame = pd.DataFrame()
-    fig: OpenBBFigure | None = None
+    fig: Any = None
 
     if isinstance(getattr(obbject, "results", None), SQLiteTable):
         sqlite_tbl: SQLiteTable = obbject.results  # ty: ignore[invalid-assignment]

cli/openbb_cli/session.py

@@ -137,14 +137,36 @@ class Session(metaclass=SingletonMeta):
         except Exception:
             return None
 
+    @staticmethod
+    def _resolve_backend_class() -> Any:
+        """Resolve the charting backend class, honoring overrides and the engine.
+
+        Prefers a backend registered under the ``openbb_charting_backend``
+        entry-point group, otherwise asks the resolved charting engine for its
+        built-in backend, so the CLI never depends on ``openbb_charting`` by name.
+        """
+        from openbb_core.app.charting import (
+            ChartingManager,
+            get_charting_backend_class,
+        )
+
+        backend_class = get_charting_backend_class()
+        if backend_class is not None:
+            return backend_class
+
+        engine = ChartingManager.get_charting_class()
+        getter = getattr(engine, "get_backend_class", None) if engine else None
+        return getter() if callable(getter) else None
+
     def _build_backend(self) -> Any:
         try:
-            from openbb_charting.core.backend import (  # ty: ignore[unresolved-import]
-                Backend,
-            )
             from openbb_core.app.model.charts.charting_settings import ChartingSettings
 
-            return Backend(
+            backend_class = self._resolve_backend_class()
+            if backend_class is None:
+                return None
+
+            return backend_class(
                 ChartingSettings(
                     system_settings=self._obb.system,
                     user_settings=self._obb.user,