Merge pull request #8 from paperswithbacktest/codex/clean-.env.example-data-defaults

Load defaults from YAML

Author: edarchimbaud

.env.example

@@ -24,13 +24,3 @@ MAX_COMPLETION_TOKENS=4096
 SQLITE_DB="~/.alphaevolve/programs.db"
 
 
-# ---------------------------------------------------------------------------
-# Data defaults
-# ---------------------------------------------------------------------------
-
-DEFAULT_SYMBOLS="SPY,EFA,IEF,VNQ,GSG"
-
-START_DATE="1990-01-01"
-
-# Hall-of-Fame ranking metric:  "sharpe" or "calmar" or any KPI key
-HOF_METRIC="sharpe"

alphaevolve/config.py

@@ -10,9 +10,10 @@
 """
 
 from pathlib import Path
-from pydantic_settings import BaseSettings
-from pydantic import Field
 
+import yaml
+from pydantic import Field
+from pydantic_settings import BaseSettings
 
 
 class Settings(BaseSettings):
@@ -37,10 +38,16 @@ class Settings(BaseSettings):
     exploitation_ratio: float = Field(0.7, env="EXPLOITATION_RATIO")
     diversity_metric: str = Field("edit_distance", env="DIVERSITY_METRIC")
 
-
-
     class Config:
         env_file = ".env"
 
 
-settings = Settings()
+DEFAULT_CONFIG_FILE = Path(__file__).with_name("default_config.yaml")
+if DEFAULT_CONFIG_FILE.exists():
+    with DEFAULT_CONFIG_FILE.open("r") as f:
+        yaml_defaults = yaml.safe_load(f) or {}
+else:
+    yaml_defaults = {}
+
+
+settings = Settings(**yaml_defaults)

alphaevolve/default_config.yaml

@@ -0,0 +1,9 @@
+# Default values for AlphaEvolve configuration. Values here can be overridden
+# by environment variables as defined in `alphaevolve/config.py`.
+population_size: 1000
+archive_size: 100
+num_islands: 5
+elite_selection_ratio: 0.1
+exploration_ratio: 0.2
+exploitation_ratio: 0.7
+diversity_metric: edit_distance

pyproject.toml

@@ -37,6 +37,7 @@ dependencies = [
   "numpy",
   "tqdm",
   "pydantic>=2.0",
+  "pyyaml>=6.0",
 ]
 
 # leave this exactly as you had it