We always wrote a pair of lines to the Wise install.log telling it to

delete the Tools and Lib directories at uninstall time.  However,
under the old version of Wise, they didn't actually do anything.  Under
the new version, they work as advertised, and even delete files users
added.
Got rid of those, and replaced them with similar uninstall cmds that
get rid of all .pyc and .pyo files (whether or not the installer created
them).  This works nicely!  It still tears down the directory structure,
except for those directories needed to get to any non-.pyc/o file(s) the
user may have added.

PCbuild/python20.wse

@@ -1189,6 +1189,11 @@ item: Set Variable
 end
 item: End Block
 end
+item: Remark
+end
+item: Remark
+  Text=Install the license even if they deselect everything <wink>.
+end
 item: Install File
   Source=..\license
   Destination=%MAINDIR%\LICENSE.txt
@@ -1206,6 +1211,20 @@ item: Install File
 end
 item: Remark
 end
+item: Remark
+  Text=These arrange to (recursively!) delete all .pyc and .pyo files at uninstall time.
+end
+item: Remark
+  Text=This "does the right thing":  any directories left empty at the end are removed.
+end
+item: Add Text to INSTALL.LOG
+  Text=File Tree: %MAINDIR%\*.pyc
+end
+item: Add Text to INSTALL.LOG
+  Text=File Tree: %MAINDIR%\*.pyo
+end
+item: Remark
+end
 item: Remark
   Text=A: interpreter, libraries and Tcl/Tk
 end
@@ -1429,14 +1448,6 @@ end
 item: Remark
   Text=Libraries (Lib/)
 end
-item: Remark
-  Text=Remove entire Lib directory at uninstall time.
-end
-item: Add Text to INSTALL.LOG
-  Text=File Tree: %MAINDIR%\Lib\*.*
-end
-item: Remark
-end
 item: Install File
   Source=..\lib\*.py
   Destination=%MAINDIR%\Lib
@@ -1608,14 +1619,6 @@ item: If/While Statement
   Value=C
   Flags=00001010
 end
-item: Remark
-  Text=Delete entire Tools directory at uninstall time.
-end
-item: Add Text to INSTALL.LOG
-  Text=File Tree: %MAINDIR%\Tools\*.*
-end
-item: Remark
-end
 item: Install File
   Source=..\tools\scripts\*.py
   Destination=%MAINDIR%\Tools\Scripts