Lazy-import pyconify (#270)

* lazy-import pyconify

* change import pattern

---------

Co-authored-by: Talley Lambert <talley.lambert@gmail.com>

src/superqt/__init__.py

@@ -11,7 +11,6 @@ except PackageNotFoundError:
 from .collapsible import QCollapsible
 from .combobox import QColorComboBox, QEnumComboBox, QSearchableComboBox
 from .elidable import QElidingLabel, QElidingLineEdit
-from .iconify import QIconifyIcon
 from .selection import QSearchableListWidget, QSearchableTreeWidget
 from .sliders import (
     QDoubleRangeSlider,
@@ -58,16 +57,21 @@ __all__ = [
 
 if TYPE_CHECKING:
     from .combobox import QColormapComboBox  # noqa: TC004
+    from .iconify import QIconifyIcon  # noqa: TC004
     from .spinbox._quantity import QQuantity  # noqa: TC004
 
 
 def __getattr__(name: str) -> Any:
-    if name == "QQuantity":
-        from .spinbox._quantity import QQuantity
-
-        return QQuantity
     if name == "QColormapComboBox":
         from .cmap import QColormapComboBox
 
         return QColormapComboBox
+    if name == "QIconifyIcon":
+        from .iconify import QIconifyIcon
+
+        return QIconifyIcon
+    if name == "QQuantity":
+        from .spinbox._quantity import QQuantity
+
+        return QQuantity
     raise AttributeError(f"module {__name__!r} has no attribute {name!r}")

src/superqt/iconify/__init__.py

@@ -7,16 +7,22 @@ from qtpy.QtCore import QSize, Qt
 from qtpy.QtGui import QIcon, QPainter, QPixmap
 from qtpy.QtWidgets import QApplication
 
+try:
+    from pyconify import svg_path
+except ModuleNotFoundError:  # pragma: no cover
+    raise ModuleNotFoundError(
+        "pyconify is required to use QIconifyIcon. "
+        "Please install it with `pip install pyconify` or use the "
+        "`pip install superqt[iconify]` extra."
+    ) from None
+
 if TYPE_CHECKING:
     from typing import Literal
 
     Flip = Literal["horizontal", "vertical", "horizontal,vertical"]
     Rotation = Literal["90", "180", "270", 90, 180, 270, "-90", 1, 2, 3]
 
-try:
-    from pyconify import svg_path
-except ModuleNotFoundError:  # pragma: no cover
-    svg_path = None
+__all__ = ["QIconifyIcon"]
 
 
 class QIconifyIcon(QIcon):
@@ -74,12 +80,6 @@ class QIconifyIcon(QIcon):
         rotate: Rotation | None = None,
         dir: str | None = None,
     ):
-        if svg_path is None:  # pragma: no cover
-            raise ModuleNotFoundError(
-                "pyconify is required to use QIconifyIcon. "
-                "Please install it with `pip install pyconify` or use the "
-                "`pip install superqt[iconify]` extra."
-            )
         super().__init__()
         if key:
             self.addKey(*key, color=color, flip=flip, rotate=rotate, dir=dir)