python - Django non-ASCII chars in template tags values -

i'm writing custom django template tag french application. template tag takes parameter string:

{% mytag "hello" %} 

is works perfect, fails when trying put non-ascii chars in value.

how thing work:

{% mytag "Êtes-vous à paris ?" %} 

i got error:

'ascii' codec can't encode character u'\xca' in position 0: ordinal not in range(128)

unicode error hint

the string not encoded/decoded was: Êtes-v

thanks in advance!

edit: python version 2.7. here code of tag:

@register.simple_tag(takes_context=true) def mytag(context, my_var):     return "here is: {my_var}".format(my_var=my_var) 

try replacing

return "here is: {my_var}".format(my_var=my_var) 

by

return u"here is: {my_var}".format(my_var=my_var) 

in python 2.7, "here is: {my_var}" str object, encoded string, my_var unicode object, decoded string, when formatting, python try encode my_var matches type of formatting string. using ascii codec default not support special characters.

adding u before formatting string makes unicode string, no encoding take place during formatting.

since looks might speak french, advise read this article great guide encoding in python.