view env/lib/python3.9/site-packages/galaxy/util/ @ 0:4f3585e2f14b draft default tip

"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
author shellac
date Mon, 22 Mar 2021 18:12:50 +0000
line wrap: on
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Utilities for dealing with UCSC data.

class UCSCLimitException(Exception):

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)
            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())
                self.lookahead = next_line
        return line

    def next(self):
        return self.__next__()

    def readline(self):
        return next(self)