Fix lint (and readme, thanks Greg!)

cuthbertLab · Sep 18, 2024 · 955224c · 955224c
1 parent 913e9e0
commit 955224c
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Showing 4 changed files with 9 additions and 7 deletions.
diff --git a/README.md b/README.md
@@ -65,7 +65,7 @@ Maintainers will respect confidentiality with regard to reports.
 
 ## Acknowledgements ##
 
-The early development of `music21` was been supported by
+The early development of `music21` was supported by
 the generosity of the Seaver Institute and the
 National Endowment for the Humanities, along with MIT's Music and Theater Arts Section
 and the School of Humanities, Arts, and Social Sciences.
diff --git a/documentation/source/usersGuide/usersGuide_14_timeSignatures.ipynb b/documentation/source/usersGuide/usersGuide_14_timeSignatures.ipynb
@@ -913,7 +913,7 @@
    ],
    "source": [
     "for n in alto.recurse().notes:\n",
-    "    n.stemDirection = None\n",
+    "    n.stemDirection = 'unspecified'\n",
     "\n",
     "alto.show()"
    ]

diff --git a/music21/tinyNotation.py b/music21/tinyNotation.py
@@ -301,17 +301,17 @@ def affectTokenBeforeParse(self, tokenStr: str) -> str:
 
     def affectTokenAfterParseBeforeModifiers(
         self,
-        m21Obj: base.Music21Object
-    ) -> base.Music21Object:
+        m21Obj: Music21Object
+    ) -> Music21Object:
         '''
         called after the object has been acquired but before modifiers have been applied.
         '''
         return m21Obj
 
     def affectTokenAfterParse(
         self,
-        m21Obj: base.Music21Object
-    ) -> base.Music21Object:
+        m21Obj: Music21Object
+    ) -> Music21Object:
         '''
         called to modify the tokenObj after parsing
 
@@ -324,6 +324,8 @@ def affectTokenAfterParse(
                 self.end()
                 # this is a hack that should be done away with...
                 p = self.parent
+                if p is None:
+                    return m21Obj
 
                 # I thought this was potentially O(n^2) but it's actually
                 # just O(n) on activeStates and on pop() operation.

diff --git a/music21/tree/verticality.py b/music21/tree/verticality.py
@@ -786,7 +786,7 @@ def newNote(ts: spans.PitchedTimespan, n: note.Note) -> note.Note:
                 nNew.pitch = n.pitch
 
             if nNew.stemDirection != 'noStem':
-                nNew.stemDirection = None
+                nNew.stemDirection = 'unspecified'
             if not addTies:
                 return nNew