csvs.py: TsvReader: Use str.split() instead of csv.reader().next() to parse the row, for efficiency and to support multi-char delimiters. This is possible because the TSV dialect doesn't use CSV parsing features other than the delimiter and newline-escaping (which is handled separately).
csvs.py: TsvReader: Use str.split() instead of csv.reader().next() to parse the row, for efficiency and to support multi-char delimiters. This is possible because the TSV dialect doesn't use CSV parsing features other than the delimiter and newline-escaping (which is handled separately).