Add type annotations from monkeytype + jw-devops/test

Add type annotations as generated by monkeytype and jw-devops/test, plus some
hand editing to satisfy both monkeytype and mypy.

Signed-off-by: Jan Lindemann <jan@janware.com>

tools/python/jwutils/stree/StringTree.py

@@ -1,4 +1,6 @@
+from __future__ import annotations
 from collections import OrderedDict
+from typing import Optional, Union
 from jwutils.log import *
 
 def quote(s):
@@ -10,7 +12,7 @@ def quote(s):
             return "'" + s + "'"
     return '"' + s + '"'
 
-def is_quoted(s):
+def is_quoted(s: str) -> bool:
     if isinstance(s, StringTree):
         return False
     s = s.strip()
@@ -21,7 +23,7 @@ def is_quoted(s):
         return True
     return False
 
-def cleanup_string(s):
+def cleanup_string(s: str) -> str:
     if isinstance(s, StringTree):
         return s
     s = s.strip()
@@ -31,9 +33,9 @@ def cleanup_string(s):
 
 class StringTree: # export
 
-    def __init__(self, path, content):
+    def __init__(self, path: str, content: str) -> None:
         slog(DEBUG, "ctor, path =", path, "content =", content)
-        self.children = OrderedDict()
+        self.children: OrderedDict[str, StringTree] = OrderedDict()
         self.content = None
         self.__set(path, content)
         assert(hasattr(self, "content"))
@@ -106,10 +108,10 @@ class StringTree: # export
             self.children[nibble].children[gc.content] = gc
         return self.children[nibble]
 
-    def __str__(self):
+    def __str__(self) -> str:
         return 'st:"{}"'.format(self.content)
 
-    def __getitem__(self, path):
+    def __getitem__(self, path: str) -> str:
         r = self.get(path)
         if r is None:
             raise KeyError(path)
@@ -139,11 +141,11 @@ class StringTree: # export
             raise Exception("Tried to set empty content")
         self.content = content
 
-    def add(self, path, content = None, split = True):
+    def add(self, path: str, content: Optional[Union[str, StringTree]] = None, split: bool = True) -> StringTree:
         slog(DEBUG, "adding >{}< at >{}< to >{}<".format(content, path, self.content))
         return self.__set(path, content, split)
 
-    def get(self, path_):
+    def get(self, path_: str) -> Optional[StringTree]:
         slog(DEBUG, 'looking for "{}" in "{}"'.format(path_, self.content))
         assert not isinstance(path_, int)
         path = cleanup_string(path_)
@@ -168,10 +170,10 @@ class StringTree: # export
         relpath = '.'.join(components[1:])
         return self.children[name].get(relpath)
 
-    def value(self):
+    def value(self) -> str:
         if len(self.children) == 0:
-            return None
-        return self.children[next(reversed(self.children))].content
+            raise Exception('tried to get value from leave "{}"'.format(self.content))
+        return self.children[next(reversed(self.children))].content # type: ignore
 
     def child_list(self, depth_first=True):
         if depth_first == False:
@@ -181,7 +183,7 @@ class StringTree: # export
             r.append(c)
             r.extend(c.to_list())
 
-    def dump(self, prio, *args, **kwargs):
+    def dump(self, prio: int, *args, **kwargs) -> None:
         caller = kwargs['caller'] if 'caller' in kwargs.keys() else get_caller_pos(1)
         msg = ''
         if args is not None: