done

lib/python3.11/site-packages/_plotly_utils/optional_imports.py

@@ -0,0 +1,36 @@
+"""
+Stand-alone module to provide information about whether optional deps exist.
+
+"""
+
+from importlib import import_module
+import logging
+import sys
+
+logger = logging.getLogger(__name__)
+_not_importable = set()
+
+
+def get_module(name, should_load=True):
+    """
+    Return module or None. Absolute import is required.
+
+    :param (str) name: Dot-separated module path. E.g., 'scipy.stats'.
+    :raise: (ImportError) Only when exc_msg is defined.
+    :return: (module|None) If import succeeds, the module will be returned.
+
+    """
+    if not should_load:
+        return sys.modules.get(name, None)
+
+    if name not in _not_importable:
+        try:
+            return import_module(name)
+        except ImportError:
+            _not_importable.add(name)
+        except Exception:
+            _not_importable.add(name)
+            msg = f"Error importing optional module {name}"
+            logger.exception(msg)
+
+    return None