Python 3 syntax error on raspbian but not on mac -

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i thought python 3 code inter-operable, function raises syntax error on second line when run on raspbian / debian, not on mac.

def cleanstr(s):     toremove = dict.fromkeys((ord(c) c in u'\xa0\n '))     return s.translate(toremove)

i'm confounded, function worked cleaning strings.

can suggest why not running ? difference of unicode syntax or differences in escaping?


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