DOC: add NumpyVersion to the docs, and mention it in version.py

1 files changed, 2 insertions, 0 deletions

diff --git a/setup.py b/setup.py
index c06465970..ff8f96247 100755
--- a/setup.py
+++ b/setup.py
@@ -126,6 +126,8 @@ def get_version_info():
 def write_version_py(filename='numpy/version.py'):
     cnt = """
 # THIS FILE IS GENERATED FROM NUMPY SETUP.PY
+#
+# To compare versions robustly, use `numpy.lib.NumpyVersion`
 short_version = '%(version)s'
 version = '%(version)s'
 full_version = '%(full_version)s'