Fix version lookup and content-length handling

label_studio/__init__.py

@@ -6,7 +6,12 @@
 package_name = 'label-studio'
 
 # Package version
-__version__ = importlib.metadata.metadata(package_name).get('version')
+try:
+    __version__ = importlib.metadata.version(package_name)
+except importlib.metadata.PackageNotFoundError:  # pragma: no cover - fallback for src installs
+    # Package isn't installed, so importlib can't find the metadata.
+    # This happens when running from a source checkout.
+    __version__ = '0.0.0'
 
 # pypi info
 __latest_version__ = None

label_studio/data_import/uploader.py

@@ -132,7 +132,11 @@ def tasks_from_url(file_upload_ids, project, user, url, could_be_tasks_list):
             url, verify=project.organization.should_verify_ssl_certs(), stream=True, headers={'Accept-Encoding': None}
         )
         file_content = response.content
-        check_tasks_max_file_size(int(response.headers['content-length']))
+        try:
+            content_length = int(response.headers.get('content-length', len(file_content)))
+        except (TypeError, ValueError):
+            content_length = len(file_content)
+        check_tasks_max_file_size(content_length)
         file_upload = create_file_upload(user, project, SimpleUploadedFile(filename, file_content))
         if file_upload.format_could_be_tasks_list:
             could_be_tasks_list = True

tests/test_version.py

@@ -0,0 +1,10 @@
+import importlib
+import os
+import sys
+
+# Ensure the repo root is on the path
+sys.path.insert(0, os.path.dirname(os.path.dirname(__file__)))
+
+def test_version_importable():
+    module = importlib.import_module('label_studio')
+    assert isinstance(module.__version__, str)