Suppress "None" output as string in Jinja2
In new versions of Jinja2 (2.9+):
{{ value if value }}
In older versions of Jinja2 (prior to 2.9):
{{ value if value is not none }} works great.
if this raises an error about not having an else try using an else ..
{{ value if value is not none else '' }}
How do I persuade Jinja2 to not print "None" when the value is None?
I have a number of entries in a dictionary and I would like to output everything in a single loop instead of having special cases for different keywords.  If I have a value of None (the NoneType not the string) then the string "None" is inserted into the template rendering results.
Trying to suppress it using 
{{ value or '' }} works too well as it will replace the numeric value zero as well.
Do I need to filter the dictionary before passing it to Jinja2 for rendering?