Mercurial > repos > davidmurphy > codonlogo
view corebio/seq_io/null_io.py @ 5:b89bb51eba83
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author | davidmurphy |
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date | Mon, 16 Jan 2012 06:59:52 -0500 |
parents | c55bdc2fb9fa |
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#!/usr/bin/env python # Copyright (c) 2005 Gavin E. Crooks <gec@threeplusone.com> # # This software is distributed under the MIT Open Source License. # <http://www.opensource.org/licenses/mit-license.html> # # Permission is hereby granted, free of charge, to any person obtaining a # copy of this software and associated documentation files (the "Software"), # to deal in the Software without restriction, including without limitation # the rights to use, copy, modify, merge, publish, distribute, sublicense, # and/or sell copies of the Software, and to permit persons to whom the # Software is furnished to do so, subject to the following conditions: # # The above copyright notice and this permission notice shall be included # in all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN # THE SOFTWARE. # """Null sequence IO. Acts like /dev/null. Read returns empty sequences or sequence lists, writes do nothing.""" from corebio.seq import Seq, SeqList names = () extensions = () def read(fin, alphabet=None): assert fin is not None # Do something with arguments to quite pychecker if alphabet is not None : pass return SeqList([]) def iterseq(fin, alphabet=None) : assert fin is not None if alphabet is not None : pass yield Seq('') return def write(fout, seqs): assert fout is not None assert seqs is not None return def writeseq(fout, seq): assert fout is not None assert seq is not None return