pv stabilization, fav child

katrain/__main__.py

@@ -53,7 +53,7 @@ class KaTrainGui(BoxLayout):
         self._keyboard.bind(on_key_down=self._on_keyboard_down)
 
     def log(self, message, level=OUTPUT_INFO):
-        if level == OUTPUT_KATAGO_STDERR and 'ERROR' not in self.controls.status.text:
+        if level == OUTPUT_KATAGO_STDERR and "ERROR" not in self.controls.status.text:
             if "starting" in message.lower():
                 self.controls.set_status(f"KataGo engine starting...")
             if message.startswith("Tuning"):

katrain/core/common.py

@@ -45,7 +45,7 @@ def find_package_resource(path):
             path_obj = pkg_resources.path(".".join(parts[:-1]), parts[-1]).__enter__()
             resource_scopes.append(path_obj)
             return str(path_obj)
-        except ModuleNotFoundError as e:
+        except (ModuleNotFoundError, FileNotFoundError) as e:
             print(f"File {path} not found, installation possibly broken")
             return "FILENOTFOUND"
     else:

katrain/core/engine.py

@@ -37,7 +37,7 @@ class KataGoEngine:
                 executable = "katago"
 
         modelfile, configfile = find_package_resource(config["model"]), find_package_resource(config["config"])
-        self.command = f"{find_package_resource(executable)} analysis -model {modelfile} -config {configfile} -analysis-threads {config['threads']}"
+        self.command = f'{find_package_resource(executable)} analysis -model "{modelfile}" -config "{configfile}" -analysis-threads {config["threads"]}'
         if not sys.platform.startswith("win"):
             self.command = shlex.split(self.command)
         self.queries = {}  # outstanding query id -> start time and callback
@@ -55,6 +55,7 @@ class KataGoEngine:
         try:
             self.katrain.log(f"Starting KataGo with {self.command}", OUTPUT_DEBUG)
             self.katago_process = subprocess.Popen(self.command, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+            print(self.katago_process, self.katago_process.poll())
         except (FileNotFoundError, PermissionError, OSError) as e:
             if self.config["katago"].strip():
                 self.katrain.log(
@@ -111,6 +112,7 @@ class KataGoEngine:
                 raise EngineDiedException(f"Engine died unexpectedly without sending output, possibly due to out of memory: {e}")
             if b"Uncaught exception" in line:
                 self.katrain.log(f"KataGo Engine Failed: {line.decode()}", OUTPUT_ERROR)
+                return
             if not line:
                 continue
             analysis = json.loads(line)

katrain/core/game.py

@@ -136,6 +136,7 @@ class Game:
         cn = self.current_node  # avoid race conditions
         for _ in range(n_times):
             if not cn.is_root:
+                cn.parent.set_favourite_child(cn)
                 cn = cn.parent
         self.set_current_node(cn)
 
@@ -143,7 +144,7 @@ class Game:
         cn = self.current_node  # avoid race conditions
         for _ in range(n_times):
             if cn.children:
-                cn = cn.children[-1]
+                cn = cn.favourite_child
         self.set_current_node(cn)
 
     def switch_branch(self, direction):

katrain/core/game_node.py

@@ -18,6 +18,7 @@ class GameNode(SGFNode):
         self.ai_thoughts = ""
         self.move_number = 0
         self.undo_threshold = random.random()  # for fractional undos, store the random threshold in the move itself for consistency
+        self._favourite_child = None
 
     def sgf_properties(self, save_comments_player=None, save_comments_class=None, eval_thresholds=None):
         properties = copy.copy(super().sgf_properties())
@@ -48,6 +49,16 @@ class GameNode(SGFNode):
     def order_children(children):
         return sorted(children, key=lambda c: 0.5 if c.auto_undo is None else int(c.auto_undo))  # analyzed/not undone main, non-teach second, undone last
 
+    def set_favourite_child(self, c):
+        self._favourite_child = c
+
+    @property
+    def favourite_child(self) -> Optional["GameNode"]:
+        if self._favourite_child:
+            return self._favourite_child
+        elif self.children:
+            return self.children[0]
+
     # various analysis functions
     def analyze(self, engine, priority=0, visits=None, time_limit=True, refine_move=None, analyze_fast=False):
         engine.request_analysis(

katrain/gui/badukpan.py

@@ -334,22 +334,22 @@ class BadukPanWidget(Widget):
             if self.ghost_stone:
                 self.draw_stone(*self.ghost_stone, (*stone_color[next_player], ghost_alpha))
 
-    def animate_pv(self, _dt):
             animating_pv = self.animating_pv
-        if not animating_pv:
-            return
+            if animating_pv:
                 pv, node, start_time, _ = animating_pv
                 delay = self.ui_config.get("anim_pv_time", 0.5)
                 up_to_move = (time.time() - start_time) / delay
-        self.draw_hover_contents()
                 self.draw_pv(pv, node, up_to_move)
 
+    def animate_pv(self, _dt):
+        if self.animating_pv:
+            self.draw_hover_contents()
+
     def draw_pv(self, pv, node, up_to_move):
         katrain = self.katrain
         next_last_player = [node.next_player, node.player]
         stone_color = self.ui_config["stones"]
         cn = katrain.game.current_node
-        with self.canvas.after:
         if node != cn and node.parent != cn:
             hide_node = cn
             while hide_node and hide_node.move and hide_node != node:

katrain/gui/kivyutils.py

@@ -278,7 +278,7 @@ class ScoreGraph(Label):
         self.nodes = [root]
         node = root
         while node.children:
-            node = node.children[0]
+            node = node.favourite_child
             self.nodes.append(node)
         self.highlighted_index = 0
 

setup.py

@@ -36,7 +36,13 @@ setup(
     author_email="sander.land@gmail.com",
     url="https://github.com/sanderland/katrain",
     license="MIT",
-    install_requires=["kivy", "kivy_deps.glew;platform_system=='Windows'", "kivy_deps.sdl2;platform_system=='Windows'", "kivy_deps.gstreamer;platform_system=='Windows'","importlib_resources ;python_version<'3.7'",],
+    install_requires=[
+        "kivy",
+        "kivy_deps.glew;platform_system=='Windows'",
+        "kivy_deps.sdl2;platform_system=='Windows'",
+        "kivy_deps.gstreamer;platform_system=='Windows'",
+        "importlib_resources ;python_version<'3.7'",
+    ],
     python_requires=">=3.6, <3.8",
     entry_points={"console_scripts": ["katrain=katrain.__main__:run_app"]},
     classifiers=["Development Status :: 4 - Beta", "Operating System :: Microsoft :: Windows", "Operating System :: POSIX :: Linux", "Programming Language :: Python :: 3"],