importlib_metadata dependency (#534)

Co-authored-by: Alexander Guschin <1aguschin@gmail.com>

mlem/utils/module.py

@@ -277,11 +277,11 @@ def get_package_name(mod: Union[ModuleType, str]) -> str:
             fix_suggestion,
         )
         return mod
-    if len(packages) > 1:
+    if len(packages[mod]) > 1:
         logger.warning(
-            "Found multiple packages for '%s' module, using '%s'. %s",
+            "Found multiple packages for '%s' module: %s. Using first one. %s",
             mod,
-            packages[mod][0],
+            packages[mod],
             fix_suggestion,
         )
     return packages[mod][0]

setup.py

@@ -23,6 +23,7 @@
     "flatdict",
     "iterative-telemetry>=0.0.6",
     "python-multipart",
+    "importlib-metadata",
 ]
 
 tests = [
@@ -52,7 +53,6 @@
     "pyarrow",
     "skl2onnx",
     "dvc[s3]",
-    "importlib_metadata",
     "httpx",
 ]