Fixed database typo and removed unnecessary class identifier.

venv/Lib/site-packages/skimage/_shared/_tempfile.py

@@ -0,0 +1,27 @@
+from tempfile import NamedTemporaryFile
+from contextlib import contextmanager
+import os
+
+@contextmanager
+def temporary_file(suffix=''):
+    """Yield a writeable temporary filename that is deleted on context exit.
+
+    Parameters
+    ----------
+    suffix : string, optional
+        The suffix for the file.
+
+    Examples
+    --------
+    >>> import numpy as np
+    >>> from skimage import io
+    >>> with temporary_file('.tif') as tempfile:
+    ...     im = np.arange(25, dtype=np.uint8).reshape((5, 5))
+    ...     io.imsave(tempfile, im)
+    ...     assert np.all(io.imread(tempfile) == im)
+    """
+    tempfile_stream = NamedTemporaryFile(suffix=suffix, delete=False)
+    tempfile = tempfile_stream.name
+    tempfile_stream.close()
+    yield tempfile
+    os.remove(tempfile)