Provide OpenSlide version in openslide.__library_version__

Author: bgilbert

openslide/__init__.py

@@ -35,6 +35,8 @@
 from openslide.lowlevel import OpenSlideError
 from openslide._version import __version__
 
+__library_version__ = lowlevel.get_version()
+
 PROPERTY_NAME_COMMENT          = 'openslide.comment'
 PROPERTY_NAME_VENDOR           = 'openslide.vendor'
 PROPERTY_NAME_QUICKHASH1       = 'openslide.quickhash-1'

openslide/lowlevel.py

@@ -187,3 +187,5 @@ def read_associated_image(slide, name):
     buf = (w.value * h.value * c_uint32)()
     _read_associated_image(slide, name, buf)
     return _load_image(buf, (w.value, h.value))
+
+get_version = _func('openslide_get_version', c_char_p, [], None)