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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _skip_to_blank(f, spacegroup, setting):
 """Read lines from f until a blank line is encountered."""

    while True:
        line = f.readline()
        if not line:
            raise SpacegroupNotFoundError(
                'invalid spacegroup %s, setting %i not found in data base' % 
                ( spacegroup, setting ) )
        if not line.strip():
            break