update dependencies, removed unneeded code

python/test.py

@@ -27,10 +27,6 @@
 from snappy.testing import (doctest_modules, cyopengl_works,
                             tk_root, root_is_fake, DocTestParser)
 
-# The following line doesn't seem to be needed. Can we just remove it?
-# MG 2024-07-26
-snappy.database.Manifold = snappy.SnapPy.Manifold
-
 # Augment tests for SnapPy with those that Cython missed
 
 missed_classes = ['Triangulation', 'Manifold',
@@ -52,10 +48,6 @@
 for key in identify_tests + triangulation_tests + browser_tests:
     snappy.SnapPyHP.__test__.pop(key)
 
-# Spherogram Commit 7b6307ea02e536 on 2024-07-26 (after tag 2.2_as_released)
-# sets run_doctests' name.
-spherogram.test.run_doctests.__name__ = spherogram.__name__
-
 def additional_doctests(verbose=False, print_info=True):
     """
     I noticed that some of my changes to move code from here into

setup.py

@@ -496,10 +496,10 @@ def add(self, source_file, dependency_mod_time=0.0):
 ext_modules = [SnapPyC, SnapPyHP, TwisterCore]
 
 install_requires = ['FXrays>=1.3',
-                    'plink>=2.4.2',
-                    'spherogram>=2.2',
+                    'plink>=2.4.3',
+                    'spherogram>=2.3',
                     'snappy_manifolds>=1.2.1',
-                    'low_index>=1.2',
+                    'low_index>=1.2.1',
                     'tkinter-gl>=1.0',
                     'decorator',
                     'packaging',