# element.attrib.update will explode if DateTimes are in the
# dcitionary.
d=d.copy()
- for (k,v) in d.iteritems():
- if not isinstance(v,StringTypes): del d[k]
+ # looks like iteritems won't stand side-effects
for k in d.keys():
- if (type(d[k]) != str) and (type(d[k]) != unicode):
+ if not isinstance(d[k],StringTypes):
del d[k]
element.attrib.update(d)