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August 14, 2012 00:31
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Cython Magic
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| { | |
| "metadata": { | |
| "name": "Cython Magic" | |
| }, | |
| "nbformat": 3, | |
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| "input": "%load_ext cythonmagic", | |
| "language": "python", | |
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| "input": "%%cython --annotate\nfrom libc.stdlib cimport strtol as _strtol\n\ndef strtol(bytes n, int base=10):\n cdef int ret\n cdef char *nptr = n\n cdef char *endptr\n ret = _strtol(nptr, &endptr, base)\n if endptr == nptr or endptr[0] != 0:\n raise ValueError(\"Invalid string %r at at character %d\" % (n, endptr-nptr+1))\n return ret", | |
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| "html": "<!-- Generated by Cython 0.16 on Mon Aug 13 17:07:01 2012 -->\n<html>\n\n<head>\n<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\" />\n<style type=\"text/css\">\n\nbody { font-family: courier; font-size: 12; }\n\n.code { font-size: 9; color: #444444; display: none; margin-left: 20px; }\n.py_c_api { color: red; }\n.py_macro_api { color: #FF7000; }\n.pyx_c_api { color: #FF3000; }\n.pyx_macro_api { color: #FF7000; }\n.refnanny { color: #FFA000; }\n\n.error_goto { color: #FFA000; }\n\n.tag { }\n\n.coerce { color: #008000; border: 1px dotted #008000 }\n\n.py_attr { color: #FF0000; font-weight: bold; }\n.c_attr { color: #0000FF; }\n\n.py_call { color: #FF0000; font-weight: bold; }\n.c_call { color: #0000FF; }\n\n.line { margin: 0em }\n\n</style>\n<script>\nfunction toggleDiv(id) {\n theDiv = document.getElementById(id);\n if (theDiv.style.display == 'none') theDiv.style.display = 'block';\n else theDiv.style.display = 'none';\n}\n</script>\n</head>\n <body>\n<p>Generated by Cython 0.16 on Mon Aug 13 17:07:01 2012\n<pre class='line' style='background-color: #FFFFff' onclick='toggleDiv(\"line1\")'> 1: from libc.stdlib cimport strtol as _strtol</pre>\n<pre id='line1' class='code' style='background-color: #FFFFff'></pre><pre class='line' style='background-color: #FFFFff' onclick='toggleDiv(\"line2\")'> 2: </pre>\n<pre id='line2' class='code' style='background-color: #FFFFff'></pre><pre class='line' style='background-color: #FFFF52' onclick='toggleDiv(\"line3\")'> 3: def strtol(bytes n, int base=10):</pre>\n<pre id='line3' class='code' style='background-color: #FFFF52'>\n/* \"_cython_magic_61312305a41c94b0224908425e795b16.pyx\":3\n * from libc.stdlib cimport strtol as _strtol\n * \n * def strtol(bytes n, int base=10): # <code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code>\n * cdef int ret\n * cdef char *nptr = n\n */\n\nstatic PyObject *__pyx_pf_46_cython_magic_61312305a41c94b0224908425e795b16_strtol(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_n, int __pyx_v_base) {\n int __pyx_v_ret;\n char *__pyx_v_nptr;\n char *__pyx_v_endptr;\n PyObject *__pyx_r = NULL;\n <span class='refnanny'>__Pyx_RefNannyDeclarations</span>\n <span class='pyx_c_api'><span class='refnanny'>__Pyx_RefNannySetupContext</span></span>(\"strtol\", 0);\n\n /* \"_cython_magic_61312305a41c94b0224908425e795b16.pyx\":3\n * from libc.stdlib cimport strtol as _strtol\n * \n * def strtol(bytes n, int base=10): # <code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code>\n * cdef int ret\n * cdef char *nptr = n\n */\n __pyx_k_tuple_2 = <span class='py_c_api'>PyTuple_New</span>(5);<span class='error_goto'> if (unlikely(!__pyx_k_tuple_2)) {__pyx_filename = __pyx_f[0]; 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__pyx_lineno = 5; __pyx_clineno = __LINE__; goto __pyx_L1_error;}</span>\n __pyx_v_nptr = __pyx_t_1;\n</pre><pre class='line' style='background-color: #FFFFff' onclick='toggleDiv(\"line6\")'> 6: cdef char *endptr</pre>\n<pre id='line6' class='code' style='background-color: #FFFFff'></pre><pre class='line' style='background-color: #FFFFff' onclick='toggleDiv(\"line7\")'> 7: ret = _strtol(nptr, &endptr, base)</pre>\n<pre id='line7' class='code' style='background-color: #FFFFff'>\n /* \"_cython_magic_61312305a41c94b0224908425e795b16.pyx\":7\n * cdef char *nptr = n\n * cdef char *endptr\n * ret = _strtol(nptr, &endptr, base) # <code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code>\n * if endptr == nptr or endptr[0] != 0:\n * raise ValueError(\"Invalid string %r at at character %d\" % (n, endptr-nptr+1))\n */\n __pyx_v_ret = strtol(__pyx_v_nptr, (&__pyx_v_endptr), __pyx_v_base);\n</pre><pre class='line' style='background-color: #FFFFff' onclick='toggleDiv(\"line8\")'> 8: if endptr == nptr or endptr[0] != 0:</pre>\n<pre id='line8' class='code' style='background-color: #FFFFff'>\n /* \"_cython_magic_61312305a41c94b0224908425e795b16.pyx\":8\n * cdef char *endptr\n * ret = _strtol(nptr, &endptr, base)\n * if endptr == nptr or endptr[0] != 0: # <code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code>\n * raise ValueError(\"Invalid string %r at at character %d\" % (n, endptr-nptr+1))\n * return ret\n */\n __pyx_t_2 = (__pyx_v_endptr == __pyx_v_nptr);\n if (!__pyx_t_2) {\n __pyx_t_3 = ((__pyx_v_endptr[0]) != 0);\n __pyx_t_4 = __pyx_t_3;\n } else {\n __pyx_t_4 = __pyx_t_2;\n }\n if (__pyx_t_4) {\n</pre><pre class='line' style='background-color: #FFFF39' onclick='toggleDiv(\"line9\")'> 9: raise ValueError(\"Invalid string %r at at character %d\" % (n, endptr-nptr+1))</pre>\n<pre id='line9' class='code' style='background-color: #FFFF39'>\n /* \"_cython_magic_61312305a41c94b0224908425e795b16.pyx\":9\n * ret = _strtol(nptr, &endptr, base)\n * if endptr == nptr or endptr[0] != 0:\n * raise ValueError(\"Invalid string %r at at character %d\" % (n, endptr-nptr+1)) # <code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code>\n * return ret\n */\n __pyx_t_5 = <span class='py_c_api'>PyInt_FromLong</span>(((__pyx_v_endptr - __pyx_v_nptr) + 1));<span class='error_goto'> if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; 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__pyx_clineno = __LINE__; goto __pyx_L1_error;}</span>\n <span class='pyx_macro_api'><span class='refnanny'>__Pyx_GOTREF</span></span>(__pyx_t_5);\n <span class='pyx_macro_api'>__Pyx_DECREF</span>(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;\n <span class='pyx_c_api'>__Pyx_Raise</span>(__pyx_t_5, 0, 0, 0);\n <span class='pyx_macro_api'>__Pyx_DECREF</span>(__pyx_t_5); __pyx_t_5 = 0;\n <span class='error_goto'> {__pyx_filename = __pyx_f[0]; __pyx_lineno = 9; __pyx_clineno = __LINE__; goto __pyx_L1_error;}</span>\n goto __pyx_L3;\n }\n __pyx_L3:;\n</pre><pre class='line' style='background-color: #FFFF73' onclick='toggleDiv(\"line10\")'> 10: return ret</pre>\n<pre id='line10' class='code' style='background-color: #FFFF73'>\n /* \"_cython_magic_61312305a41c94b0224908425e795b16.pyx\":10\n * if endptr == nptr or endptr[0] != 0:\n * raise ValueError(\"Invalid string %r at at character %d\" % (n, endptr-nptr+1))\n * return ret # <code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code><code><</code>\n */\n <span class='pyx_macro_api'>__Pyx_XDECREF</span>(__pyx_r);\n __pyx_t_5 = <span class='py_c_api'>PyInt_FromLong</span>(__pyx_v_ret);<span class='error_goto'> if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; 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| "text": "<IPython.core.display.HTML at 0x3e89050>" | |
| } | |
| ], | |
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| }, | |
| { | |
| "cell_type": "code", | |
| "collapsed": false, | |
| "input": "strtol('hello', base=36)", | |
| "language": "python", | |
| "metadata": {}, | |
| "outputs": [ | |
| { | |
| "output_type": "pyout", | |
| "prompt_number": 5, | |
| "text": "29234652" | |
| } | |
| ], | |
| "prompt_number": 5 | |
| }, | |
| { | |
| "cell_type": "code", | |
| "collapsed": false, | |
| "input": "%timeit strtol('hello', base=36)", | |
| "language": "python", | |
| "metadata": {}, | |
| "outputs": [ | |
| { | |
| "output_type": "stream", | |
| "stream": "stdout", | |
| "text": "1000000 loops, best of 3: 285 ns per loop\n" | |
| } | |
| ], | |
| "prompt_number": 6 | |
| }, | |
| { | |
| "cell_type": "code", | |
| "collapsed": false, | |
| "input": "", | |
| "language": "python", | |
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| } | |
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| } | |
| ] | |
| } |
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