--- cmake/Modules/GrSwig.cmake.orig	2023-02-07 13:13:25.000000000 -0500
+++ cmake/Modules/GrSwig.cmake	2023-02-07 13:13:31.000000000 -0500
@@ -118,16 +118,12 @@
     list(INSERT GR_SWIG_INCLUDE_DIRS 0 "$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>")
     list(INSERT GR_SWIG_INCLUDE_DIRS 0 "$<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>")
 
-    if (PYTHON3)
-        set(py3 "-py3")
-    endif (PYTHON3)
-
     #setup the swig flags with flags and include directories
     set(modern_keyword "-modern")
     if("${SWIG_VERSION}" VERSION_GREATER "3.0.12")
       set(modern_keyword "")
     endif()
-    set(CMAKE_SWIG_FLAGS -fvirtual ${modern_keyword} -keyword -w511 -w314 -relativeimport ${py3} -module ${name} ${GR_SWIG_FLAGS})
+    set(CMAKE_SWIG_FLAGS -fvirtual ${modern_keyword} -keyword -w511 -w314 -relativeimport -module ${name} ${GR_SWIG_FLAGS})
 
     #set the C++ property on the swig .i file so it builds
     set_source_files_properties(${ifiles} PROPERTIES CPLUSPLUS ON)
--- ./gnuradio-runtime/swig/gnuradio.i.orig	2023-02-07 13:09:22.000000000 -0500
+++ ./gnuradio-runtime/swig/gnuradio.i	2023-02-07 13:12:49.000000000 -0500
@@ -23,6 +23,13 @@
 // Disable warning about base class types
 #pragma SWIG nowarn=401
 
+// Turn on function annotations and variable annotations globally.
+// Required Python 3.6 or newer. This fix is for MacPorts only,
+// and we limit Python to 3.7 or newer, so we're safe here.
+// See also https://trac.macports.org/ticket/66389 and
+// https://www.swig.org/Doc4.1/Python.html#Python_annotations_c
+%feature("python:annotations", "c");
+
 ////////////////////////////////////////////////////////////////////////
 // gnuradio.i
 // SWIG interface definition