67 lines
2.1 KiB
Python
67 lines
2.1 KiB
Python
"""Output formatters using prettytable.
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"""
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import prettytable
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from .base import ListFormatter, SingleFormatter
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class TableFormatter(ListFormatter, SingleFormatter):
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ALIGNMENTS = {
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int: 'r',
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str: 'l',
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unicode: 'l',
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float: 'r',
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}
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def add_argument_group(self, parser):
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group = parser.add_argument_group('Table Formatter')
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group.add_argument(
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'-c', '--column',
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action='append',
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default=[],
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dest='columns',
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help='specify the column(s) to include, can be repeated',
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)
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def emit_list(self, column_names, data, stdout, parsed_args):
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x = prettytable.PrettyTable(column_names)
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x.set_padding_width(1)
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# Figure out the types of the columns in the
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# first row and set the alignment of the
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# output accordingly.
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data_iter = iter(data)
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try:
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first_row = next(data_iter)
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except StopIteration:
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pass
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else:
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for value, name in zip(first_row, column_names):
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alignment = self.ALIGNMENTS.get(type(value), 'l')
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x.set_field_align(name, alignment)
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# Now iterate over the data and add the rows.
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x.add_row(first_row)
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for row in data_iter:
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x.add_row(row)
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formatted = x.get_string(fields=(parsed_args.columns or column_names))
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stdout.write(formatted)
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stdout.write('\n')
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return
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def emit_one(self, column_names, data, stdout, parsed_args):
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x = prettytable.PrettyTable(('Field', 'Value'))
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x.set_padding_width(1)
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# Align all columns left because the values are
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# not all the same type.
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x.set_field_align('Field', 'l')
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x.set_field_align('Value', 'l')
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desired_columns = parsed_args.columns
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for name, value in zip(column_names, data):
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if name in desired_columns or not desired_columns:
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x.add_row((name, value))
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formatted = x.get_string(fields=('Field', 'Value'))
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stdout.write(formatted)
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stdout.write('\n')
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return
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