{"id":90484,"date":"2020-08-01T13:42:39","date_gmt":"2020-08-01T11:42:39","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/obnovlenie-jpype-1-0-2-biblioteki-dlya-dostupa-k-java-klassam-iz-python"},"modified":"2020-08-01T13:42:39","modified_gmt":"2020-08-01T11:42:39","slug":"obnovlenie-jpype-1-0-2-biblioteki-dlya-dostupa-k-java-klassam-iz-python","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sl\/blog\/news\/obnovlenie-jpype-1-0-2-biblioteki-dlya-dostupa-k-java-klassam-iz-python","title":{"rendered":"Posodobitev JPype 1.0.2, knji\u017enice za dostop do Java razredov iz Pythona","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/jpype-project\/jpype\/releases\/tag\/1.0.2\">Na voljo<\/a><\/noindex> nova izdaja vmesnika <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/jpype-project\/jpype\/\">JPype 1.0.2<\/a><\/noindex>, ki omogo\u010da popoln dostop Python aplikacij do knji\u017enic razredov v jeziku Java. Z uporabo JPype lahko iz Pythona uporabljate specifi\u010dne knji\u017enice Java in ustvarjate hibridne aplikacije, ki zdru\u017eujejo kodo v Java in Python. V nasprotju z Jythonom se integracija z Javo ne dose\u017ee s kreiranjem razli\u010dice Pythona za JVM, temve\u010d z interakcijo na ravni obeh virtualnih strojev, pri \u010demer se uporablja deljena pomnilni\u0161ka prostorska. Predlagan pristop omogo\u010da dosego dobre zmogljivosti ter dostop do vseh knji\u017enic CPython in Java. Koda projekta <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/jpype-project\/jpype\/\">se distribuira<\/a><\/noindex> pod licenco Apache 2.0.<\/p>\n<p>Glavne spremembe:<\/p>\n<ul>\n<li class=\"l\"> V klice metod je dodan predpomnilnik, ki prepre\u010duje razre\u0161evanje prenoveritev, kar znatno zmanj\u0161uje vpliv na zmogljivost razre\u0161evanja metod, \u0161e posebej, \u010de se ista prenoveritev kli\u010de ve\u010dkrat, kot med izvajanjem zank.\n<li class=\"l\"> Od 4 do 100-krat, odvisno od vrste podatkov, je pospe\u0161ena prenos seznamov, tuplov in pomnilni\u0161kih blokov v matrike Java osnovnih tipov. Pretvorba uporablja optimizirano obdelavo pomnilni\u0161kih blokov, namesto Sequence API. Ko se sre\u010da Python pomnilni\u0161ki blok, se preveri le prvi element za pretvorbo, saj so ti podatkovni bloki enotnega tipa.\n<li class=\"l\"> Obdelava operacij shutdown (implementirano \u017ee v JPype 1.0.0, a je bilo spregledano pri pripravi seznama sprememb). JPype zdaj kli\u010de shutdown-proceduro JVM, ki posku\u0161a izvesti izhod v na\u010dinu \u00bbgracefully\u00ab. To povzro\u010da ve\u010d sprememb v obna\u0161anju. Neozadene niti (proxy klic) sedaj lahko dr\u017eijo JVM odprt, dokler niso zaklju\u010den. Klici Proxy bodo obravnavali shutdown, dokler klic ni kon\u010dan, vendar bodo prejeli sporo\u010dilo o prekinitvi. Datoteke se zdaj pravilno zaprejo in shranijo podatke na disk (flush), \u010de niti ustrezno obravnavajo izjemo. Izvr\u0161eno je \u010di\u0161\u010denje virov in finalizatorji. Pri ustvarjanju niti se kli\u010dejo AtExit-huki. S pomo\u010djo demona je omogo\u010deno samodejno priklju\u010dovanje niti pri uporabi JVM iz Pythona. Napaka kod, ki ne more pravilno obravnati \u010di\u0161\u010denja niti, verjetno povzro\u010di zamrznitev pri izvajanju shutdown. Dodatna dokumentacija je na voljo v priro\u010dniku za uporabo.\n<li class=\"l\"> Wrap for Throwable received a wrap for Object instead of the expected result, leading to strange transformations from Python classes.\n<li class=\"l\"> Popravljene so tipkarske napake v sistemu za uvoz, ki vodijo do napake '\u00bbjname\u00ab not found'.\n<li class=\"l\"> Zagotavljeno je pravilno posredovanje '\u00bb^C\u00ab' v KeyboardInterrupt.\n<li class=\"l\"> The issue with characters in Python 3.5.3 has been resolved. PySlice_Unpack was introduced in a subsequent patch release (3.5.4) and should not have been used.\n<li class=\"l\"> Razre\u0161ena je napaka z numpy.linalg.inv, ki povzro\u010da sesutje. Te\u017eava je bila sledenja interakciji niti med JVM in nekaterimi razli\u010dicami numpy. Predlagana re\u0161itev \u2014 klic numpy.linalg.inv pred zagonjem JVM.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Izvor: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=53469\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u043d\u043e\u0432\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a \u043f\u0440\u043e\u0441\u043b\u043e\u0439\u043a\u0438 JPype 1.0.2, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0439 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u043e\u0432\u0430\u0442\u044c \u043f\u043e\u043b\u043d\u044b\u0439 \u0434\u043e\u0441\u0442\u0443\u043f Python-\u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 \u043a \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0430\u043c \u043a\u043b\u0430\u0441\u0441\u043e\u0432 \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Java. \u041f\u0440\u0438 \u043f\u043e\u043c\u043e\u0449\u0438 JPype \u0438\u0437 Python \u043c\u043e\u0436\u043d\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u0447\u043d\u044b\u0435 \u0434\u043b\u044f Java \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438, \u0441\u043e\u0437\u0434\u0430\u0432\u0430\u044f \u0433\u0438\u0431\u0440\u0438\u0434\u043d\u044b\u0435 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f, \u0441\u043e\u0447\u0435\u0442\u0430\u044e\u0449\u0438\u0435 \u043a\u043e\u0434 \u043d\u0430 Java \u0438 Python. \u0412 \u043e\u0442\u043b\u0438\u0447\u0438\u0435 \u043e\u0442 Jython, \u0438\u043d\u0442\u0435\u0433\u0440\u0430\u0446\u0438\u044f \u0441 Java \u0434\u043e\u0441\u0442\u0438\u0433\u0430\u0435\u0442\u0441\u044f \u043d\u0435 \u0447\u0435\u0440\u0435\u0437 \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u0435 \u0432\u0430\u0440\u0438\u0430\u043d\u0442\u0430 Python \u0434\u043b\u044f JVM, \u0430 \u0447\u0435\u0440\u0435\u0437 \u0432\u0437\u0430\u0438\u043c\u043e\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0435 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-90484","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.5 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u043d\u043e\u0432\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a \u043f\u0440\u043e\u0441\u043b\u043e\u0439\u043a\u0438\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri 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