c++ - Embedded extended python multiprocessing imports -

-

i have c/c++ application embedding python3 interpreter , extending "emb" module outlined here https://docs.python.org/3/extending/embedding.html.

here rough example of c++

py_setpythonhome(ppath); py_setpath(path); pyimport_appendinittab("emb", &pyinit_emb); py_setprogramname(program);  /* optional recommended */ py_initialize(); pysys_setargvex(argc, argv_copy, 0); pyobject *obj = py_buildvalue("s", "mypython.py"); file *file = _py_fopen_obj(obj, "r+"); if(file != null) {    pyrun_simplefile(file, "mypython.py"); } py_finalize();

the python script (mypython.py) c++ app loads , works great:

import emb print("number of arguments", emb.numargs())

i modified python script (mypython.py) test multiprocessing working , works great after setting executable.

from multiprocessing import process, set_executable  set_executable('c:\path\to\python3\python.exe')  def worker(num):     print('worker:', num)  if __name__ == '__main__':     jobs = []     in range(5):         p = process(target=worker, args=(i,))         jobs.append(p)         p.start()

lastly actual issue i'm @ now, combined both code 1 emb stuff @ top.

mypython.py

import emb print("number of arguments", emb.numargs()) multiprocessing import process, set_executable  set_executable('c:\path\to\python3\python.exe')  def worker(num):     print('worker:', num)  if __name__ == '__main__':     jobs = []     in range(5):         p = process(target=worker, args=(i,))         jobs.append(p)         p.start()

now when code gets run first print out of number of arguments bunch of errors. can tell there problems copying modules on newly spawned python processes because coming c++ statically? i'm not sure how can fix can tell spawned processes emb import in other way? not script on python path in c++ code. need run pyimport_appendinittab on child processes or something?

here output:

number of arguments 1 traceback (most recent call last):   file "<string>", line 1, in <module>   file "multiprocessing\spawn.py", line 106, in spawn_main   file "multiprocessing\spawn.py", line 115, in _main   file "multiprocessing\spawn.py", line 226, in prepare   file "multiprocessing\spawn.py", line 278, in _fixup_main_from_path   file "runpy.py", line 254, in run_path   file "runpy.py", line 96, in _run_module_code   file "runpy.py", line 85, in _run_code   file "c:\_dev\projects\pythontest\mypython.py", line 1, in <module> traceback (most recent call last):   file "<string>", line 1, in <module>     import emb importerror: no module named 'emb'   file "multiprocessing\spawn.py", line 106, in spawn_main   file "multiprocessing\spawn.py", line 115, in _main traceback (most recent call last):   file "<string>", line 1, in <module>   file "multiprocessing\spawn.py", line 226, in prepare   file "multiprocessing\spawn.py", line 106, in spawn_main   file "multiprocessing\spawn.py", line 278, in _fixup_main_from_path   file "multiprocessing\spawn.py", line 115, in _main   file "multiprocessing\spawn.py", line 226, in prepare   file "runpy.py", line 254, in run_path traceback (most recent call last):   file "<string>", line 1, in <module>   file "multiprocessing\spawn.py", line 278, in _fixup_main_from_path   file "runpy.py", line 96, in _run_module_code   file "multiprocessing\spawn.py", line 106, in spawn_main   file "runpy.py", line 85, in _run_code   file "runpy.py", line 254, in run_path   file "multiprocessing\spawn.py", line 115, in _main   file "c:\_dev\projects\pythontest\mypython.py", line 1, in <module>   file "runpy.py", line 96, in _run_module_code   file "multiprocessing\spawn.py", line 226, in prepare     import emb   file "runpy.py", line 85, in _run_code importerror: no module named 'emb'   file "multiprocessing\spawn.py", line 278, in _fixup_main_from_path   file "c:\_dev\projects\pythontest\mypython.py", line 1, in <module>   file "runpy.py", line 254, in run_path     import emb importerror: no module named 'emb'   file "runpy.py", line 96, in _run_module_code   file "runpy.py", line 85, in _run_code   file "c:\_dev\projects\pythontest\mypython.py", line 1, in <module>     import emb importerror: no module named 'emb' traceback (most recent call last):   file "<string>", line 1, in <module>   file "multiprocessing\spawn.py", line 106, in spawn_main   file "multiprocessing\spawn.py", line 115, in _main   file "multiprocessing\spawn.py", line 226, in prepare   file "multiprocessing\spawn.py", line 278, in _fixup_main_from_path   file "runpy.py", line 254, in run_path   file "runpy.py", line 96, in _run_module_code   file "runpy.py", line 85, in _run_code   file "c:\_dev\projects\pythontest\mypython.py", line 1, in <module>     import emb importerror: no module named 'emb'


Comments

Post a Comment

Popular posts from this blog

php - How to display all orders for a single product showing the most recent first? Woocommerce -

-
i have password protected page on frontend. on page, want display full list of purchases associated single woocommerce product id. option 1: i've looked through woocommerce docs , , found: wc_cli_order , list_( $args, $assoc_args ) function lists orders. presumably, orders can filtered product id [--=] filter orders based on order property. line item fields (numeric array, started index zero): line_items.0.product_id option 2: i found article , based on customer id. i've modified code based on guesses meta_key , meta_value. $customer_orders = get_posts( array( 'numberposts' => -1, 'meta_key' => '_product', 'meta_value' => get_product_id(), 'post_type' => wc_get_order_types(), 'post_status' => array_keys( wc_get_order_statuses() ), ) ); how display orders single product showing recent order first? here solution put based on these articles: http://www.w...
Read more

asp.net - How to correctly use QUERY_STRING in ISAPI rewrite? -

-
i'm having difficult time , hope guys can help. using helicon isapi rewrite version 3.1.0.104 on our iis server. edit http.conf file , have tried , still fail. this trying do: redirect url: https://www.domain.com/switch-by-version?version=2.8.5.2594 to: https://test.domain.com/load/load.aspx?tver=2.8.5.2594 the version number @ end source url change, , need target url have same version number @ end of url example above shows. i tried following not work: rewritecond %{query_string} ^version=(\d\d?)\.(\d\d?)\.(\d\d?)\.(.*)$ [nc] rewriterule ^/switch-by-version(.*)$ https://test.domain.com/load/load.aspx?tver=%1 [r=307,nc,l] any appreciated! thanks. if it's running in equivalent context of .htaccess , rule shouldn't start / . here's simpler version: rewritecond %{query_string} ^version=(\d+\.\d+\.\d+(?:\..+)?)$ [nc] rewriterule ^switch-by-version/?$ https://test.domain.com/load/load.aspx?tver=%1 [r=307,nc,l]
Read more

angularjs - How restrict admin panel using in backend laravel and admin panel on angular? -

-
https://scotch.io/tutorials/token-based-authentication-for-angularjs-and-laravel-apps following tutorials, try write authentication restrict admin panel, didn't understood how can that. this admin panel, admin panel don't want show , request database unauthenticated users. my laravel-routes route::get('/admin',function(){ return view('index'); }); route::get('/api/v1/employees/{id?}', 'employees@index'); route::get('/api/v1/users/{id?}', 'employees@users'); route::post('/api/v1/employees', 'employees@store'); route::post('/api/v1/employees/{id}', 'employees@update'); route::delete('/api/v1/employees/{id}', 'employees@destroy'); route::group(['prefix' => 'api'], function() { route::resource('authenticate', 'authenticatecontroller', ['only' => ['index']]); route::post('authenticate', 'authentic...
Read more