add ASTROPY_LT_5_1 check that will fail

Author: volodymyrss

astroquery/heasarc/core.py

@@ -18,10 +18,10 @@
 
 def Table_read(*args, **kwargs):
     # why does if commons.ASTROPY_LT_5_0 not work on Windows?
-    try:
-        return Table.read(*args, **kwargs, unit_parse_strict='silent')
-    except TypeError:
+    if commons.ASTROPY_LT_5_1:
         return Table.read(*args, **kwargs)
+    else:
+        return Table.read(*args, **kwargs, unit_parse_strict='silent')
 
 
 @async_to_sync

astroquery/utils/commons.py

@@ -53,11 +53,13 @@ def FK4CoordGenerator(*args, **kwargs):
            'validate_email',
            'ASTROPY_LT_4_1',
            'ASTROPY_LT_4_3',
-           'ASTROPY_LT_5_0']
+           'ASTROPY_LT_5_0',
+           'ASTROPY_LT_5_1']
 
 ASTROPY_LT_4_1 = not minversion('astropy', '4.1')
 ASTROPY_LT_4_3 = not minversion('astropy', '4.3')
 ASTROPY_LT_5_0 = not minversion('astropy', '5.0')
+ASTROPY_LT_5_1 = not minversion('astropy', '5.1')
 
 
 @deprecated('0.4.4', alternative='astroquery.query.BaseQuery._request')