MNT: Drop support for numpy < 1.15.3

Author: effigies

nipype/info.py

@@ -100,10 +100,9 @@ def get_nipype_gitversion():
 # versions
 NIBABEL_MIN_VERSION = "2.1.0"
 NETWORKX_MIN_VERSION = "2.0"
-NUMPY_MIN_VERSION = "1.13"
 # Numpy bug in python 3.7:
 # https://www.opensourceanswers.com/blog/you-shouldnt-use-python-37-for-data-science-right-now.html
-NUMPY_MIN_VERSION_37 = "1.15.3"
+NUMPY_MIN_VERSION = "1.15.3"
 SCIPY_MIN_VERSION = "0.14"
 TRAITS_MIN_VERSION = "4.6"
 DATEUTIL_MIN_VERSION = "2.2"
@@ -138,8 +137,7 @@ def get_nipype_gitversion():
     "click>=%s" % CLICK_MIN_VERSION,
     "networkx>=%s" % NETWORKX_MIN_VERSION,
     "nibabel>=%s" % NIBABEL_MIN_VERSION,
-    'numpy>=%s ; python_version < "3.7"' % NUMPY_MIN_VERSION,
-    'numpy>=%s ; python_version >= "3.7"' % NUMPY_MIN_VERSION_37,
+    'numpy>=%s' % NUMPY_MIN_VERSION,
     "packaging",
     "prov>=%s" % PROV_VERSION,
     "pydot>=%s" % PYDOT_MIN_VERSION,