refactor: enhance Optuna backtesting framework, optimize orderbook filtering, and update database management utilities.

scratch/find_unclosed_2.py

@@ -0,0 +1,35 @@
+from html.parser import HTMLParser
+
+class DivTracker(HTMLParser):
+    def __init__(self):
+        super().__init__()
+        self.stack = []
+        self.found = False
+        
+    def handle_starttag(self, tag, attrs):
+        if tag == 'div':
+            attrs_dict = dict(attrs)
+            if attrs_dict.get('id') == 'tab-backtest':
+                self.found = True
+            
+            if self.found:
+                # store class and id for debugging
+                cls = attrs_dict.get('class', '')
+                id_ = attrs_dict.get('id', '')
+                self.stack.append((self.getpos(), cls, id_))
+                
+    def handle_endtag(self, tag):
+        if tag == 'div' and self.found:
+            if self.stack:
+                self.stack.pop()
+                if len(self.stack) == 0:
+                    self.found = False # End of tab-backtest
+
+with open('templates/backtest.html', 'r', encoding='utf-8') as f:
+    html = f.read()
+
+tracker = DivTracker()
+tracker.feed(html)
+print("Unclosed divs inside tab-backtest:")
+for item in tracker.stack:
+    print(item)