fix version string parsing for trailing dev numbers

Author: amueller

openml/flows/sklearn_converter.py

@@ -31,7 +31,7 @@
 
 
 DEPENDENCIES_PATTERN = re.compile(
-    '^(?P<name>[\w\-]+)((?P<operation>==|>=|>)(?P<version>(\d+\.)?(\d+\.)?(\d+)?(dev)?))?$')
+    '^(?P<name>[\w\-]+)((?P<operation>==|>=|>)(?P<version>(\d+\.)?(\d+\.)?(\d+)?(dev)?[0-9]*))?$')
 
 
 def sklearn_to_flow(o, parent_model=None):