fix async

scrapers/__init__.py

@@ -1,15 +1,45 @@
-from .atcoder import AtCoderScraper
-from .base import BaseScraper, ScraperConfig
-from .codeforces import CodeforcesScraper
-from .cses import CSESScraper
-from .models import (
-    ContestListResult,
-    ContestSummary,
-    MetadataResult,
-    ProblemSummary,
-    TestCase,
-    TestsResult,
-)
+# Lazy imports to avoid module loading conflicts when running scrapers with -m
+def __getattr__(name):
+    if name == "AtCoderScraper":
+        from .atcoder import AtCoderScraper
+
+        return AtCoderScraper
+    elif name == "BaseScraper":
+        from .base import BaseScraper
+
+        return BaseScraper
+    elif name == "ScraperConfig":
+        from .base import ScraperConfig
+
+        return ScraperConfig
+    elif name == "CodeforcesScraper":
+        from .codeforces import CodeforcesScraper
+
+        return CodeforcesScraper
+    elif name == "CSESScraper":
+        from .cses import CSESScraper
+
+        return CSESScraper
+    elif name in [
+        "ContestListResult",
+        "ContestSummary",
+        "MetadataResult",
+        "ProblemSummary",
+        "TestCase",
+        "TestsResult",
+    ]:
+        from .models import (
+            ContestListResult,
+            ContestSummary,
+            MetadataResult,
+            ProblemSummary,
+            TestCase,
+            TestsResult,
+        )
+
+        return locals()[name]
+    raise AttributeError(f"module 'scrapers' has no attribute '{name}'")
+
 
 __all__ = [
     "AtCoderScraper",

scrapers/atcoder.py

@@ -272,7 +272,11 @@ def scrape_contests() -> list[ContestSummary]:
                 r"[\uff01-\uff5e]", lambda m: chr(ord(m.group()) - 0xFEE0), name
             )
 
-            contests.append(ContestSummary(id=contest_id, name=name, display_name=name))
+            # Skip AtCoder Heuristic Contests (AHC) as they don't have standard sample tests
+            if not contest_id.startswith("ahc"):
+                contests.append(
+                    ContestSummary(id=contest_id, name=name, display_name=name)
+                )
 
         return contests