{"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\/sk\/blog\/news\/vypusk-brython-3-10-realizaczii-yazyka-python-dlya-web-brauzerov","title":{"rendered":"Vydanie Brython 3.10, implement\u00e1cie jazyka Python pre webov\u00e9 prehliada\u010de","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Predstaven\u00e1 verzia projektu Brython 3.10 (Browser Python) s implement\u00e1ciou programovacieho jazyka Python 3 na vykon\u00e1vanie na strane webov\u00e9ho prehliada\u010da, ktor\u00e1 umo\u017e\u0148uje pou\u017e\u00edva\u0165 Python namiesto JavaScriptu na v\u00fdvoj skriptov pre web. K\u00f3d projektu je nap\u00edsan\u00fd v jazyku Python a distribuuje sa pod licenciou BSD. <\/p>\n

Pripojen\u00edm kni\u017en\u00edc brython.js a brython_stdlib.js m\u00f4\u017ee webov\u00fd v\u00fdvoj\u00e1r pou\u017e\u00edva\u0165 jazyk Python na ur\u010denie logiky fungovania webovej str\u00e1nky na strane klienta, pri\u010dom vyu\u017e\u00edva Python namiesto JavaScriptu. Na vlo\u017eenie Python k\u00f3du do str\u00e1nok sa pou\u017e\u00edva tag s mime typom 'text\/python'. Podporuje sa ako vkladanie k\u00f3du na str\u00e1nku, tak aj na\u010d\u00edtanie extern\u00fdch skriptov (). Z skriptu je poskytovan\u00fd \u00fapln\u00fd pr\u00edstup k prvkom a udalostiam DOM. Okrem pr\u00edstupu k \u0161tandardnej kni\u017enici Python s\u00fa k dispoz\u00edcii \u0161pecializovan\u00e9 kni\u017enice na interakciu s DOM a JavaScriptov\u00fdmi kni\u017enicami ako jQuery, D3, Highcharts a Raphael. Podporuje sa pou\u017e\u00edvanie CSS r\u00e1mcov Bootstrap3, LESS a SASS. <\/p>\n

Spustenie Python kódu z blokov <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

Kone\u010dn\u00fd v\u00fdkon v\u00e4\u010d\u0161iny oper\u00e1ci\u00ed vo webov\u00fdch Python skriptoch je bl\u00edzky v\u00fdkonu CPython. Zdr\u017eanie sa objavuje iba v \u0161t\u00e1diu kompil\u00e1cie, av\u0161ak pre jej odstr\u00e1nenie je poskytovan\u00e1 mo\u017enos\u0165 na\u010d\u00edtania predkompilovan\u00e9ho JavaScript k\u00f3du, ktor\u00e1 sa pou\u017e\u00edva na zr\u00fdchlenie na\u010d\u00edtania \u0161tandardnej kni\u017enice (Brython poskytuje n\u00e1stroje na vytv\u00e1ranie JavaScript kni\u017en\u00edc na z\u00e1klade modulov Python). <\/p>\n

Nov\u00e9 vydanie je pozoruhodn\u00e9 zabezpe\u010den\u00edm s\u00faladu s Python 3.10, vr\u00e1tane podpory oper\u00e1torov na porovn\u00e1vanie so vzorom (match\/case). V novej verzii je taktie\u017e navrhnut\u00e1 po\u010diato\u010dn\u00e1 implement\u00e1cia abstraktn\u00e9ho syntaktick\u00e9ho stromu (AST, Abstract Syntax Tree) pre jazyk Python, ktor\u00fd m\u00f4\u017ee by\u0165 nesk\u00f4r pou\u017eit\u00fd na generovanie JavaScript k\u00f3du z univerz\u00e1lneho AST.
\n
Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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