If bpy fails to import, assume we are in subprocess and only import subproc.py

package_manager/__init__.py

@@ -42,7 +42,12 @@ else:
     from . import utils
     from .bpkg import Package
 
+try:
     import bpy
+except ImportError:
+    from . import subproc
+else:
+
     from collections import OrderedDict
     import multiprocessing