python TypeError: frozenset expected at most 1 arguments, got 4 -


i'm getting error when trying make frozen set:

class transcriber:      dna_bases = frozenset('a','t','g','c') ...

and traceback:

~/python/project5$ python wp_proj5.py  traceback (most recent call last):   file "wp_proj5.py", line 5, in <module>     class transcriber:   file "wp_proj5.py", line 7, in transcriber     dna_bases = frozenset('a','t','g','c') typeerror: frozenset expected @ 1 arguments, got 4

what wrong here? can't initialize frozenset more 1 string?

you need list

frozenset(['a','t','g','c'])

you can read here: http://docs.python.org/2/library/stdtypes.html#frozenset

most common 1 list.


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