Mercurial > repos > shellac > sam_consensus_v3
view env/lib/python3.9/site-packages/galaxy/util/ucsc.py @ 0:4f3585e2f14b draft default tip
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
author | shellac |
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date | Mon, 22 Mar 2021 18:12:50 +0000 |
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""" Utilities for dealing with UCSC data. """ class UCSCLimitException(Exception): pass class UCSCOutWrapper: """File-like object that throws an exception if it encounters the UCSC limit error lines""" def __init__(self, other): self.other = iter(other) # Need one line of lookahead to be sure we are hitting the limit message self.lookahead = None def __iter__(self): return self def __next__(self): if self.lookahead is None: line = next(self.other) else: line = self.lookahead self.lookahead = None if line.startswith("----------"): next_line = next(self.other) if next_line.startswith("Reached output limit"): raise UCSCLimitException(next_line.strip()) else: self.lookahead = next_line return line def next(self): return self.__next__() def readline(self): return next(self)