MNT: Pin traits < 6.4

This basically sets a lifetime on nipype 1.x. Refactoring to work with breaking changes in traits seems more work than it's worth (and would presumably break with older traits).

Author: effigies

Diff for: nipype/info.py

@@ -104,6 +104,7 @@ def get_nipype_gitversion():
 NUMPY_MIN_VERSION = "1.17"
 SCIPY_MIN_VERSION = "0.14"
 TRAITS_MIN_VERSION = "4.6"
+TRAITS_MAX_VERSION = "6.4"
 DATEUTIL_MIN_VERSION = "2.2"
 SIMPLEJSON_MIN_VERSION = "3.8.0"
 PROV_MIN_VERSION = "1.5.2"
@@ -143,7 +144,7 @@ def get_nipype_gitversion():
     "rdflib>=%s" % RDFLIB_MIN_VERSION,
     "scipy>=%s" % SCIPY_MIN_VERSION,
     "simplejson>=%s" % SIMPLEJSON_MIN_VERSION,
-    "traits>=%s,!=5.0" % TRAITS_MIN_VERSION,
+    "traits>=%s,<%s,!=5.0" % (TRAITS_MIN_VERSION, TRAITS_MAX_VERSION),
     "filelock>=3.0.0",
     "etelemetry>=0.2.0",
     "looseversion",