chore: remove code nothing uses

- is_yahoo_safe, has_checkpoint, get_wall_times, the graph's curr_state and the project_dir config key
- the CLI's final_report and current_agent state, its duplicate get_analysis_date and the save_report_to_disk wrapper
- the dotenv import guard (a hard dependency) and a warning filter for langgraph-checkpoint 4.0.3

tradingagents/__init__.py

@@ -1,37 +1,9 @@
-import contextlib
-import warnings
+from dotenv import find_dotenv, load_dotenv
 
-# Load .env files at package import so DEFAULT_CONFIG's env-var overlay
-# (and every llm_clients consumer) sees the user's keys regardless of
-# which entry point started the process. find_dotenv(usecwd=True) walks
-# from the CWD, so the installed `tradingagents` console script picks up
-# the project's .env instead of stepping up from site-packages.
-# load_dotenv defaults to override=False, so it never clobbers values
-# the caller has already exported.
-try:
-    from dotenv import find_dotenv, load_dotenv
-
-    load_dotenv(find_dotenv(usecwd=True))
-    load_dotenv(find_dotenv(".env.enterprise", usecwd=True), override=False)
-except ImportError:
-    pass
-
-# langchain-core 1.3.3 calls surface_langchain_deprecation_warnings() in
-# its own __init__, which prepends default-action filters for its
-# subclassed warning categories. To suppress a specific warning we must
-# install our filter AFTER langchain-core has installed its own, so import
-# it first. The package is a guaranteed transitive dep via langgraph.
-with contextlib.suppress(ImportError):
-    import langchain_core  # noqa: F401
-
-# langgraph-checkpoint 4.0.3 calls Reviver() at module load without an
-# explicit allowed_objects, which triggers a noisy pending-deprecation
-# warning from langchain-core 1.3.3 on every interpreter start. The fix
-# is already merged upstream (langchain-ai/langgraph#7743, 2026-05-08)
-# and will arrive in the next langgraph-checkpoint release. Remove this
-# block (and the langchain_core preload above) when we bump past it.
-warnings.filterwarnings(
-    "ignore",
-    message=r"The default value of `allowed_objects`.*",
-    category=PendingDeprecationWarning,
-)
+# Load .env at package import so DEFAULT_CONFIG's env-var overlay and every LLM
+# client see the user's keys whichever entry point started the process.
+# usecwd=True walks from the working directory, so the installed console script
+# finds the project's .env rather than looking beside site-packages. Values the
+# caller has already exported are never overridden.
+load_dotenv(find_dotenv(usecwd=True))
+load_dotenv(find_dotenv(".env.enterprise", usecwd=True), override=False)

tradingagents/dataflows/symbol_utils.py

@@ -71,9 +71,6 @@ _ALIASES = {
     "FRA40": "^FCHI", "EU50": "^STOXX50E", "HK50": "^HSI",
 }
 
-# Yahoo symbols may contain letters, digits, and these structural characters.
-_YAHOO_SAFE = re.compile(r"^[A-Za-z0-9._\-\^=]+$")
-
 # HKEX codes as Yahoo spells them: the number zero-padded to 4 digits (#957).
 _HK_CODE = re.compile(r"^(\d{1,5})\.HK$")
 _SHANGHAI_SH = re.compile(r"^(\d{6})\.SH$")
@@ -150,7 +147,3 @@ def normalize_symbol(raw: str) -> str:
         logger.info("Resolved symbol %r to Yahoo symbol %r", raw, canonical)
     return canonical
 
-
-def is_yahoo_safe(symbol: str) -> bool:
-    """True when ``symbol`` only contains characters Yahoo symbols use."""
-    return bool(symbol) and _YAHOO_SAFE.fullmatch(symbol) is not None

tradingagents/default_config.py

@@ -70,7 +70,6 @@ def _apply_env_overrides(config: dict) -> dict:
 
 
 DEFAULT_CONFIG = _apply_env_overrides({
-    "project_dir": os.path.abspath(os.path.join(os.path.dirname(__file__), ".")),
     "results_dir": os.getenv("TRADINGAGENTS_RESULTS_DIR") or os.path.join(_TRADINGAGENTS_HOME, "logs"),
     "data_cache_dir": os.getenv("TRADINGAGENTS_CACHE_DIR") or os.path.join(_TRADINGAGENTS_HOME, "cache"),
     "memory_log_path": os.getenv("TRADINGAGENTS_MEMORY_LOG_PATH") or os.path.join(_TRADINGAGENTS_HOME, "memory", "trading_memory.md"),

tradingagents/graph/analyst_execution.py

@@ -103,9 +103,6 @@ class AnalystWallTimeTracker:
         finished_at = monotonic() if completed_at is None else completed_at
         self._wall_times[analyst_key] = max(0.0, finished_at - started_at)
 
-    def get_wall_times(self) -> dict[str, float]:
-        return dict(self._wall_times)
-
     def format_summary(self) -> str:
         parts = []
         for spec in self.plan.specs:

tradingagents/graph/checkpointer.py

@@ -51,11 +51,6 @@ def get_checkpointer(data_dir: str | Path, ticker: str) -> Generator[SqliteSaver
         conn.close()
 
 
-def has_checkpoint(data_dir: str | Path, ticker: str, date: str, signature: str = "") -> bool:
-    """Check whether a resumable checkpoint exists for ticker+date."""
-    return checkpoint_step(data_dir, ticker, date, signature) is not None
-
-
 def checkpoint_step(data_dir: str | Path, ticker: str, date: str, signature: str = "") -> int | None:
     """Return the step number of the latest checkpoint, or None if none exists."""
     db = _db_path(data_dir, ticker)

tradingagents/graph/trading_graph.py

@@ -145,9 +145,6 @@ class TradingAgentsGraph:
         )
         self.reflector = Reflector(self.quick_thinking_llm)
 
-        # State tracking
-        self.curr_state = None
-
         # Graph-shape-affecting run choices, kept for the checkpoint signature.
         self.selected_analysts = tuple(selected_analysts)
 
@@ -538,9 +535,6 @@ class TradingAgentsGraph:
         else:
             final_state = self.graph.invoke(graph_input, **args)
 
-        # Store current state for reflection.
-        self.curr_state = final_state
-
         # Log state to disk.
         self._log_state(trade_date, final_state)