Avoid libvips import during "preparing metadata"-phase of pip

Author: kleisauke

pyproject.toml

@@ -63,7 +63,7 @@ zip-safe = false
 include-package-data = false
 
 [tool.setuptools.dynamic]
-version = {attr = "pyvips.__version__"}
+version = {attr = "pyvips.version.__version__"}
 
 [tool.setuptools.packages.find]
 exclude = [

pyvips/__init__.py

@@ -10,7 +10,7 @@
 # user code can override this null handler
 logger.addHandler(logging.NullHandler())
 
-# pull in our module version number, see also pyproject.toml
+# pull in our module version number
 from .version import __version__
 
 # try to import our binary interface ... if that works, we are in API mode