c++ - Python 3.3 C string handling (wchar_t vs char) -

-

i'm trying embed python 3.3 in our c++ project. python 3.3 seems have introduced utf-8 preferred storage, pep 393: "the specification chooses utf-8 recommended way of exposing strings c code."

i wrote initialization code, seems simple , intuitive: 

#include <python.h> #include "log.h"  void python_init(const char *program_name) {     if (not py_isinitialized()) {         py_setprogramname(program_name);         py_initialize();         const char *py_version = py_getversion();         log::msg("initialized python %s", py_version);     } }

but compiling fails:

/home/jj/devel/openage/src/engine/python.cpp:13:3: error: no matching function call 'py_setprogramname'                 py_setprogramname(program_name);                 ^~~~~~~~~~~~~~~~~ /usr/include/python3.3/pythonrun.h:25:18: note: candidate function not viable: no known conversion 'const char *' 'wchar_t *' 1st argument pyapi_func(void) py_setprogramname(wchar_t *);                  ^

so yeah, need wchar_t * here, don't see reason why char * not job here.

what best practice here? convert char * wchar * , deal locales (mbstowcs), introduce unnecessary dynamic memory allocs?

also, if python decided go wchar entirely, why py_getversion() return char * expected it?

i found similar question python <3.3 , hope python 3.3 different (pep 393?).

the code has cross-platform capable.

=> what's fast , efficient solution pass c strings (char *) python 3.3?

// convert sequence of strings array of wchar pointers pywintypes_export void pywinobject_freewchararray(lpwstr *wchars, dword str_cnt);

can use this...?


Comments

Post a Comment

Popular posts from this blog

python - Subclassed QStyledItemDelegate ignores Stylesheet -

-
i'm trying subclass qstyleditemdelegate remove focus rectangle in qcombobox . even though i'm calling base implementation of paint function , nothing else, result different. looks if parts of style-sheet influence bounding box of item taken consideration. class pstyleditemdelegate(qstyleditemdelegate): def __init__(self, *args, **kwds): super(pstyleditemdelegate, self).__init__(*args, **kwds) def paint(self, *args, **kwargs): qstyleditemdelegate.paint(*args, **kwargs) what have paint unmodified qstyleditemdelegate ? as suggested tried replacing pyside pyqt4 , works, appears bug. update pyside 1.1.2 1.2.1 result same. unfortunately switch breaks other parts of code, if there no other suggestions i'm going accept answer. edit bug tracked here
Read more

node.js - StackOverflow API not returning JSON -

-
i using node.js script gather data stackoverflow. know responses gzipped, put code in should take care of that. script follows: var request = require('request'); var zlib = require('zlib'); function getstackoverflowresponse(url, callback){ request(url, {encoding: null}, function(err, response, body){ if(response.headers['content-encoding'] == 'gzip'){ zlib.gunzip(body, function(err, dezipped) { callback(dezipped); }); } else { callback(body); } }); } var url = "https://api.stackexchange.com/docs/questions#pagesize=2&order=desc&min=2014-01-04&max=2014-02-02&sort=activity&tagged=apigee&filter=default&site=stackoverflow&run=true"; getstackoverflowresponse(url, function(questions) { console.log(questions); }); instead of getting json output, i'm getting following response: buffer 0d 0a 0d 0a 0d 0a 0d 0a 3c 21 44 4f 43 54 59 50 45 20 48...
Read more

java - HttpClient 3.1 Connection pooling vs HttpClient 4.3.2 -

-
i have used httpclient3.1(java) connection pooling below : import org.apache.commons.httpclient.httpclient; import org.apache.commons.httpclient.multithreadedhttpconnectionmanager; import org.apache.commons.httpclient.params.httpclientparams; import org.apache.commons.httpclient.params.httpmethodparams; import org.apache.log4j.logger; public class httpclientmanager { private static logger logger = logger.getlogger(httpclientmanager.class); private static multithreadedhttpconnectionmanager connectionmanager = new multithreadedhttpconnectionmanager(); private static httpclientparams clientparams = new httpclientparams(); static { try { clientparams.makelenient(); clientparams.setauthenticationpreemptive(false); clientparams.setparameter(httpmethodparams.so_timeout, new integer(30000)); // set so_timeout clientparams.setparameter(httpmethodparams.head_body_check_timeout, new integer(3000)); // head responses ...
Read more