Always use mc:Fallback when reading mc:AlternateContent elements

1 files changed, 8 insertions, 0 deletions

diff --git a/mammoth/lists.py b/mammoth/lists.py
index 6e39ae0..e8477cb 100644
--- a/mammoth/lists.py
+++ b/mammoth/lists.py
@@ -24,6 +24,14 @@ def unique(values):
     return output
 
 
+def flat_map(func, values):
+    return [
+        element
+        for value in values
+        for element in func(value)
+    ]
+
+
 if sys.version_info[0] == 2:
     map = map
     filter = filter