Release SQLAlchemy constraint

config/requirements.txt

@@ -46,8 +46,7 @@ requests>=2.9.1
 selectors2
 simplejson>=3.8.1
 six>=1.10
-# Freeze until all problems with 1.4 are solved
-sqlalchemy==1.3.*
+sqlalchemy
 cachetools<4
 # More recent version of stomp are python 3 only
 stomp.py==4.1.22

tests/integration/test_dyn_import.py

@@ -56,6 +56,7 @@
                    'irods',  # not clear whether someone in DIRAC still uses it
                    'lfcthr',  # used by the LFC plugins
                    'pathlib',  # only used for Python 3 installations
+                   'asyncio',  # only used for Python 3 installations
                    ]
 
 # List of modules that need graphic libraries.