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"""Output formatters using prettytable.
"""
import prettytable
from .base import ListFormatter, SingleFormatter
class TableFormatter(ListFormatter, SingleFormatter):
ALIGNMENTS = {
int: 'r',
str: 'l',
float: 'r',
}
try:
ALIGNMENTS[unicode] = 'l'
except NameError:
pass
def add_argument_group(self, parser):
pass
def emit_list(self, column_names, data, stdout, parsed_args):
x = prettytable.PrettyTable(column_names)
x.padding_width = 1
# Figure out the types of the columns in the
# first row and set the alignment of the
# output accordingly.
data_iter = iter(data)
try:
first_row = next(data_iter)
except StopIteration:
pass
else:
for value, name in zip(first_row, column_names):
alignment = self.ALIGNMENTS.get(type(value), 'l')
x.align[name] = alignment
# Now iterate over the data and add the rows.
x.add_row(first_row)
for row in data_iter:
x.add_row(row)
formatted = x.get_string(fields=column_names)
stdout.write(formatted)
stdout.write('\n')
return
def emit_one(self, column_names, data, stdout, parsed_args):
x = prettytable.PrettyTable(field_names=('Field', 'Value'))
x.padding_width = 1
# Align all columns left because the values are
# not all the same type.
x.align['Field'] = 'l'
x.align['Value'] = 'l'
for name, value in zip(column_names, data):
x.add_row((name, value))
formatted = x.get_string(fields=('Field', 'Value'))
stdout.write(formatted)
stdout.write('\n')
return
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