Add test to make sure we don't import aiohttp

test/slow_dependencies_test.py

@@ -0,0 +1,13 @@
+# Copyright Modal Labs 2024
+import subprocess
+import sys
+
+
+def test_slow_dependencies_local(supports_dir):
+    # Make sure that "import modal" doesn't load some big dependencies like aiohttp
+    subprocess.check_output([sys.executable, supports_dir / "slow_dependencies_local.py"])
+
+
+def test_slow_dependencies_container(supports_dir):
+    # Make sure that "import modal._container_entrypoint" doesn't load some big dependencies like aiohttp
+    subprocess.check_output([sys.executable, supports_dir / "slow_dependencies_container.py"])

test/supports/slow_dependencies_container.py

@@ -0,0 +1,10 @@
+# Copyright Modal Labs 2024
+import sys
+
+import modal  # noqa
+
+assert "modal" in sys.modules
+
+# This is a very heavy dependency that takes about 70-80ms to import
+# Let's make sure it doesn't get imported in global scope
+assert "aiohttp" not in sys.modules

test/supports/slow_dependencies_local.py

@@ -0,0 +1,10 @@
+# Copyright Modal Labs 2024
+import sys
+
+import modal  # noqa
+
+assert "modal" in sys.modules
+
+# This is a very heavy dependency that takes about 70-80ms to import
+# Let's make sure it doesn't get imported in global scope
+assert "aiohttp" not in sys.modules