benchmark.py

# -*- coding: utf-8 -*-
from __future__ import unicode_literals
from timeit import timeit
import tabulate
import asciitable
import prettytable
import texttable
import sys
import codecs

setup_code = r"""
from csv import writer
from StringIO import StringIO
import tabulate
import asciitable
import prettytable
import texttable

table=[["some text"]+range(i,i+9) for i in range(10)]


def csv_table(table):
    buf = StringIO()
    writer(buf).writerows(table)
    return buf.getvalue()


def join_table(table):
    return "\n".join(("\t".join(map(str,row)) for row in table))


def run_prettytable(table):
    pp = prettytable.PrettyTable()
    for row in table:
        pp.add_row(row)
    return str(pp)


def run_asciitable(table):
    buf = StringIO()
    asciitable.write(table, output=buf, Writer=asciitable.FixedWidth)
    return buf.getvalue()


def run_texttable(table):
    pp = texttable.Texttable()
    pp.set_cols_align(["l"] + ["r"]*9)
    pp.add_rows(table)
    return pp.draw()

def run_tabulate(table):
    return tabulate.tabulate(table)

"""

methods = [(u"join with tabs and newlines", "join_table(table)"),
           (u"csv to StringIO", "csv_table(table)"),
           (u"asciitable (%s)" % asciitable.__version__, "run_asciitable(table)"),
           (u"tabulate (%s)" % tabulate.__version__, "run_tabulate(table)"),
           (u"PrettyTable (%s)" % prettytable.__version__, "run_prettytable(table)"),
           (u"texttable (%s)" % texttable.__version__, "run_texttable(table)"),
           ]


def benchmark(n):
    global methods
    if '--onlyself' in sys.argv[1:]:
        methods = [ m for m in methods if m[0].startswith("tabulate") ]
    else:
        methods = methods

    results = [(desc, timeit(code, setup_code, number=n)/n * 1e6)
               for desc, code in methods]
    mintime = min(map(lambda x: x[1], results))
    results = [(desc, t, t/mintime) for desc, t in
               sorted(results, key=lambda x: x[1])]
    table = tabulate.tabulate(results,
                              [u"Table formatter", u"time, μs", u"rel. time"],
                              u"rst", floatfmt=".1f")
    print codecs.encode(table, "utf-8")


if __name__ == "__main__":
    if sys.argv[1:]:
        n = int(sys.argv[1])
    else:
        n = 10000
    benchmark(n)