logHandler: Refactor code to get the fully qualified module name so t…

…hat it doesn't fail when the module is on a drive different to NVDA itself.

This code works, but the check for external paths isn't optimised and will break in some cases.
Re #3370.

source/logHandler.py

@@ -24,44 +24,22 @@
 RPC_E_CALL_REJECTED = -2147418111
 RPC_E_DISCONNECTED = -2147417848
 
-moduleCache={}
-
-def makeModulePathFromFilePath(path):
-	"""calculates the pythonic dotted module path from a file path of a python module.
-	@param path: the relative or absolute path to the module
-	@type path: string
-	@returns: the Pythonic dotted module path 
-	@rtype: string
-	"""
-	if path in moduleCache:
-		return moduleCache[path]
-	modPathList = []
-	# Work through the path components from right to left.
-	curPath = path
-	while curPath:
-		curPath, curPathCom = os.path.split(curPath)
-		if not curPathCom:
-			break
-		curPathCom = os.path.splitext(curPathCom)[0]
-		# __init__ is the root module of a package, so skip it.
-		if curPathCom != "__init__":
-			modPathList.insert(0, curPathCom)
-		if curPath in sys.path:
-			# curPath is in the Python search path, so the Pythonic module path is relative to curPath.
-			break
-	modulePath = ".".join(modPathList)
-	if modulePath:
-		moduleCache[path] = modulePath
-	return modulePath
-
 def getCodePath(f):
 	"""Using a frame object, gets its module path (relative to the current directory).[className.[funcName]]
 	@param f: the frame object to use
 	@type f: frame
 	@returns: the dotted module.class.attribute path
 	@rtype: string
 	"""
-	path=makeModulePathFromFilePath(os.path.relpath(f.f_code.co_filename))
+	fn=f.f_code.co_filename
+	if fn[0] != "<" and (not fn.startswith(sys.path[0] + "\\") or fn.startswith(globalVars.appArgs.configPath + "\\")):
+		path="external:"
+	else:
+		path=""
+	try:
+		path+=f.f_globals["__name__"]
+	except KeyError:
+		path+=fn
 	funcName=f.f_code.co_name
 	if funcName.startswith('<'):
 		funcName=""