{"id":101567,"date":"2021-10-08T22:22:35","date_gmt":"2021-10-08T20:22:35","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-brython-3-10-realizaczii-yazyka-python-dlya-web-brauzerov"},"modified":"2021-10-08T22:22:35","modified_gmt":"2021-10-08T20:22:35","slug":"vypusk-brython-3-10-realizaczii-yazyka-python-dlya-web-brauzerov","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/vypusk-brython-3-10-realizaczii-yazyka-python-dlya-web-brauzerov","title":{"rendered":"Lansarea Brython 3.10, o implementare a limbajului Python pentru browsere web","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

A fost lansat\u0103 versiunea proiectului Brython 3.10 (Browser Python) cu implementarea limbajului de programare Python 3 pentru rularea \u00een browser, permi\u021b\u00e2nd utilizarea Python \u00een loc de JavaScript pentru dezvoltarea de scripturi pentru web. Codul proiectului este scris \u00een limbajul Python \u0219i este distribuit sub licen\u021ba BSD. <\/p>\n

Prin conectarea bibliotecilor brython.js \u0219i brython_stdlib.js, dezvoltatorul web poate utiliza limbajul Python pentru a defini logica func\u021bion\u0103rii site-ului pe partea clientului, folosind Python \u00een loc de JavaScript. Pentru a include cod Python pe pagini, se folose\u0219te eticheta cu tipul mime «text\/python». Este permis at\u00e2t \u00eencorporarea codului pe pagin\u0103, c\u00e2t \u0219i \u00eenc\u0103rcarea scripturilor externe (<script type=»text\/python» src=»test.py»>). Din script se ofer\u0103 acces complet la elementele \u0219i evenimentele DOM. \u00cen plus fa\u021b\u0103 de accesul la biblioteca standard Python, sunt oferite biblioteci specializate pentru interac\u021biunea cu DOM-ul \u0219i bibliotecile JavaScript, cum ar fi jQuery, D3, Highcharts \u0219i Raphael. Este suportat utilizarea cadrelor CSS Bootstrap3, LESS \u0219i SASS. <\/p>\n

Executarea codului Python din blocuri <script> \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0441\u044f \u0447\u0435\u0440\u0435\u0437 \u043f\u0440\u0435\u0434\u0432\u0430\u0440\u0438\u0442\u0435\u043b\u044c\u043d\u0443\u044e \u043a\u043e\u043c\u043f\u0438\u043b\u044f\u0446\u0438\u044e \u044d\u0442\u043e\u0433\u043e \u043a\u043e\u0434\u0430, \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0435\u043c\u0443\u044e \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u043c Brython \u043f\u043e\u0441\u043b\u0435 \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0438 \u0441\u0442\u0440\u0430\u043d\u0438\u0446\u044b. \u041a\u043e\u043c\u043f\u0438\u043b\u044f\u0446\u0438\u044f \u0438\u043d\u0438\u0446\u0438\u0438\u0440\u0443\u0435\u0442\u0441\u044f \u043f\u0440\u0438 \u043f\u043e\u043c\u043e\u0449\u0438 \u0432\u044b\u0437\u043e\u0432\u0430 \u0444\u0443\u043d\u043a\u0446\u0438\u0438 brython(), \u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440 \u0447\u0435\u0440\u0435\u0437 \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0438\u0435 «<body onload="»brython()»">». \u041d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435 Python-\u043a\u043e\u0434\u0430 \u0444\u043e\u0440\u043c\u0438\u0440\u0443\u0435\u0442\u0441\u044f \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 JavaScript, \u043a\u043e\u0442\u043e\u0440\u043e\u0435 \u0437\u0430\u0442\u0435\u043c \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0435\u0442\u0441\u044f \u0448\u0442\u0430\u0442\u043d\u044b\u043c JavaScript-\u0434\u0432\u0438\u0436\u043a\u043e\u043c \u0431\u0440\u0430\u0443\u0437\u0435\u0440\u0430 (\u0434\u043b\u044f \u0441\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u044f, \u043f\u0440\u043e\u0435\u043a\u0442 PyPy.js \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u0435\u0442 \u0434\u043b\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f Python-\u043a\u043e\u0434\u0430 \u0432 \u0431\u0440\u0430\u0443\u0437\u0435\u0440\u0435 \u0441\u043a\u043e\u043c\u043f\u0438\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0439 \u0432 asm.js \u0438\u043d\u0442\u0435\u0440\u043f\u0440\u0435\u0442\u0430\u0442\u043e\u0440 CPython, \u0430 Skulpt \u0440\u0435\u0430\u043b\u0438\u0437\u0443\u0435\u0442 \u0438\u043d\u0442\u0435\u0440\u043f\u0440\u0435\u0442\u0430\u0442\u043e\u0440 \u043d\u0430 JavaScript). <\/p>\n

Performan\u021ba final\u0103 a celor mai multe opera\u021bii \u00een scripturile Python \u00eencorporate \u00een paginile web este aproape de performan\u021ba CPython. \u00cent\u00e2rzierea apare doar \u00een etapa de compilare, \u00eens\u0103 pentru a o elimina se ofer\u0103 posibilitatea de a \u00eenc\u0103rca codul precompilat \u00een JavaScript, care este folosit pentru a accelera \u00eenc\u0103rcarea bibliotecii standard (Brython ofer\u0103 un instrument pentru crearea bibliotecilor JavaScript bazate pe module Python). <\/p>\n

Noua lansare se remarc\u0103 prin asigurarea compatibilit\u0103\u021bii cu Python 3.10, inclusiv suport pentru operatori de potrivire de model (match\/case). \u00cen noua versiune este oferit\u0103, de asemenea, o implementare ini\u021bial\u0103 a arborelui sintactic abstract (AST, Abstract Syntax Tree) pentru limbajul Python, care poate fi utilizat ulterior pentru generarea de cod JavaScript dintr-un AST universal.
\n
Sursa: opennet.ro<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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\u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Python \u0438 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 BSD. \u041f\u043e\u0434\u043a\u043b\u044e\u0447\u0438\u0432 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 brython.js \u0438 brython_stdlib.js, web-\u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a \u043c\u043e\u0436\u0435\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u044f\u0437\u044b\u043a Python \u0434\u043b\u044f \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u044f \u043b\u043e\u0433\u0438\u043a\u0438 \u0440\u0430\u0431\u043e\u0442\u044b \u0441\u0430\u0439\u0442\u0430 \u043d\u0430 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