def get_column(self, chrom, position,<EOL>missing_seqs=MissingSequenceHandler.TREAT_AS_ALL_GAPS,<EOL>species=None):
blocks = self.get_blocks(chrom, position, position + <NUM_LIT:1>)<EOL>if len(blocks) == <NUM_LIT:0>:<EOL><INDENT>raise NoSuchAlignmentColumnError("<STR_LIT>" +<EOL>chrom + "<STR_LIT>" +<EOL>str(position) + "<STR_LIT>" +<EOL>"<STR_LIT>" +<EOL>"<STR_LIT>")<EOL><DEDENT>if len(blocks) > <NUM_LIT:1>:<EOL><INDENT>raise NoUniqueColumnError("<STR_LIT>" + chrom +<EOL>"<STR_LIT>" + str(position) + "<STR_LIT>" +<EOL>"<STR_LIT>")<EOL><DEDENT>return blocks[<NUM_LIT:0>].get_column_absolute(position, missing_seqs, species)<EOL>
Get the alignment column at the specified chromosome and position.