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timeit benchmarks
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‎.ipynb_checkpoints/timeit_test-checkpoint.ipynb‎

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{
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"metadata": {
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"name": "",
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"signature": "sha256:c78a9ef71605847c90e18bf10abda603339de473905dc928bd17aacd1ae5bee9"
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{
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"cells": [
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"### String formatting - `.format()` vs. `%s`"
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]
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},
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{
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"cell_type": "code",
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"collapsed": false,
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"input": [
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"import timeit\n",
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"\n",
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"def test_format():\n",
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" return ['{}'.format(i) for i in range(1000000)]\n",
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"\n",
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"def test_binaryop():\n",
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" return ['%s' %i for i in range(1000000)]\n",
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"\n",
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"%timeit test_format()\n",
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"%timeit test_binaryop()\n",
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"\n",
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"#print('{}: {}\\n{}: {}'.format('format()', format_res, '%s', binaryop_res))\n",
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"\n",
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"################################\n",
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"# On my machine\n",
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"################################\n",
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"#\n",
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"# Python 3.4.0\n",
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"# MacOS X 10.9.2\n",
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"# 2.5 GHz Intel Core i5\n",
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"# 4 GB 1600 Mhz DDR3\n",
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"#"
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],
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"language": "python",
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"metadata": {},
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"outputs": [
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{
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"output_type": "stream",
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"stream": "stdout",
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"text": [
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"1 loops, best of 3: 400 ms per loop\n",
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"1 loops, best of 3: 241 ms per loop"
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]
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},
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{
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"output_type": "stream",
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"stream": "stdout",
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"text": [
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"\n"
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]
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}
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],
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"prompt_number": 3
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"### String Reversing - `[::-1]` vs. `''.join(reversed())`"
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]
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},
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{
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"cell_type": "code",
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"collapsed": false,
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"input": [
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"def reverse_join(my_str):\n",
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" return ''.join(reversed(my_str))\n",
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" \n",
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"def reverse_slizing(my_str):\n",
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" return my_str[::-1]\n",
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"\n",
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"\n",
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"# Test to show that both work\n",
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"a = reverse_join('abcd')\n",
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"b = reverse_slizing('abcd')\n",
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"assert(a == b and a == 'dcba')\n",
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"\n",
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"%timeit reverse_join('abcd')\n",
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"%timeit reverse_slizing('abcd')\n",
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"\n",
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"# Python 3.4.0\n",
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"# MacOS X 10.9.2\n",
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"# 2.4 GHz Intel Core Duo\n",
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"# 8 GB 1067 Mhz DDR3\n",
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"#"
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],
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"language": "python",
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"metadata": {},
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"outputs": [
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{
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"output_type": "stream",
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"stream": "stdout",
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"text": [
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"1000000 loops, best of 3: 1.28 \u00b5s per loop\n",
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"1000000 loops, best of 3: 337 ns per loop"
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]
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},
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{
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"output_type": "stream",
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"stream": "stdout",
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"text": [
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"\n"
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]
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}
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],
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"prompt_number": 13
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}
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],
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"metadata": {}
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}
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]
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}

‎README.md‎

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================
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Syntax examples for useful Python functions, methods, and modules
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###Links to view the IPython Notebooks
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- [Python benchmarks via `timeit`](http://nbviewer.ipython.org/github/rasbt/python_reference/blob/master/timeit_test.ipynb?create=1)
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‎timeit_test.ipynb‎

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{
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"metadata": {
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"signature": "sha256:c78a9ef71605847c90e18bf10abda603339de473905dc928bd17aacd1ae5bee9"
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},
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{
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"cells": [
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"### String formatting - `.format()` vs. `%s`"
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]
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},
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{
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"cell_type": "code",
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"collapsed": false,
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"# MacOS X 10.9.2\n",
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"# 2.5 GHz Intel Core i5\n",
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"# 4 GB 1600 Mhz DDR3\n",
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"#\n"
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"#"
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],
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"language": "python",
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"metadata": {},
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],
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"prompt_number": 3
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"### String Reversing - `[::-1]` vs. `''.join(reversed())`"
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]
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},
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{
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"cell_type": "code",
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"collapsed": false,
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"input": [],
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"input": [
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"def reverse_join(my_str):\n",
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" return ''.join(reversed(my_str))\n",
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" \n",
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"def reverse_slizing(my_str):\n",
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" return my_str[::-1]\n",
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"\n",
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"\n",
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"# Test to show that both work\n",
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"a = reverse_join('abcd')\n",
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"b = reverse_slizing('abcd')\n",
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"assert(a == b and a == 'dcba')\n",
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"\n",
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"%timeit reverse_join('abcd')\n",
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"%timeit reverse_slizing('abcd')\n",
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"\n",
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"# Python 3.4.0\n",
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"# MacOS X 10.9.2\n",
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"# 2.4 GHz Intel Core Duo\n",
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"# 8 GB 1067 Mhz DDR3\n",
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"#"
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],
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"language": "python",
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"metadata": {},
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"outputs": []
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"outputs": [
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{
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"output_type": "stream",
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"stream": "stdout",
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"text": [
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"1000000 loops, best of 3: 1.28 \u00b5s per loop\n",
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"1000000 loops, best of 3: 337 ns per loop"
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]
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},
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{
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"output_type": "stream",
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"stream": "stdout",
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],
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"prompt_number": 13
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],
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"metadata": {}

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