- Check for existence of astype.

.github/workflows/pytest.yml

@@ -11,7 +11,7 @@ jobs:
         os: [ubuntu-20.04, windows-2019, macOS-11]
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v4
         with:

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "tiffwrite"
-version = "2024.2.1"
+version = "2024.2.2"
 description = "Parallel tiff writer compatible with ImageJ."
 authors = ["Wim Pomp, Lenstra lab NKI <w.pomp@nki.nl>"]
 license = "GPL-3.0-or-later"

tiffwrite/__init__.py

@@ -406,7 +406,7 @@ class IJTiffFile:
         assert (c, z, t) not in self.pool.tasks, f'frame {c} {z} {t} is added already'
         assert all([0 <= i < s for i, s in zip((c, z, t), self.shape)]), \
             'frame {} {} {} is outside shape {} {} {}'.format(c, z, t, *self.shape)
-        self.pool(frame.astype(self.dtype) if isinstance(frame, np.ndarray) else frame, handle=(c, z, t))
+        self.pool(frame.astype(self.dtype) if hasattr(frame, 'astype') else frame, handle=(c, z, t))
         if extratags:
             self.frame_extra_tags[(c, z, t)] = Tag.to_tags(extratags)