Update src/pyramid/settings.py

Co-authored-by: Steve Piercy <web@stevepiercy.com>

CHANGES.rst

@@ -4,6 +4,9 @@ unreleased
 Features
 --------
 
+- The ``aslist`` method now handles non-string object when flattening.
+  See https://github.com/Pylons/pyramid/pull/3594
+
 - It is now possible to pass multiple values to the ``header`` predicate
   for route and view configuration.
   See https://github.com/Pylons/pyramid/pull/3576

CONTRIBUTORS.txt

@@ -352,3 +352,5 @@ Contributors
 - Andrea Borghi, 2019/11/11
 
 - Sergey Maranchuk, 2020/04/18
+
+- Thibault Ravera, 2020/06/03

src/pyramid/settings.py

@@ -21,9 +21,10 @@ def aslist_cronly(value):
 
 
 def aslist(value, flatten=True):
-    """ Return a list. Separating the input based on newlines
-    and, if flatten=True (the default), also split on spaces within
-    each line when value is a string."""
+    """ Return a list, separating the input based on newlines.
+    Also if ``flatten`` is ``True`` (the default), and if the line
+    is a string, then the line will be split on spaces.
+    """
     values = aslist_cronly(value)
     if not flatten:
         return values