{"id":55199,"date":"2020-01-15T00:00:00","date_gmt":"2020-01-14T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/tsenoj-perevoda-mercurial-na-python-3-mozhet-stat-shlejf-nepredvidennyh-oshibok"},"modified":"2020-02-18T14:03:17","modified_gmt":"2020-02-18T11:03:17","slug":"tsenoj-perevoda-mercurial-na-python-3-mozhet-stat-shlejf-nepredvidennyh-oshibok","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/tsenoj-perevoda-mercurial-na-python-3-mozhet-stat-shlejf-nepredvidennyh-oshibok","title":{"rendered":"Cena p\u0159echodu Mercurial na Python 3 m\u016f\u017ee p\u0159in\u00e9st \u0159adu ne\u010dekan\u00fdch chyb","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Udr\u017eovatel syst\u00e9mu \u0159\u00edzen\u00ed verz\u00ed Mercurial<\/a><\/noindex> shrnut\u00ed v\u00fdsledku<\/a><\/noindex> prac\u00ed na p\u0159evodu projektu z Pythonu 2 na Python 3. A\u010dkoliv prvn\u00ed pokusy o portov\u00e1n\u00ed byly podniknuty ji\u017e v roce 2008, a v urychlen\u00e9m re\u017eimu za\u010dala adaptace pro pr\u00e1ci s Pythonem 3 v roce 2015, plnohodnotn\u00e1 mo\u017enost pou\u017e\u00edv\u00e1n\u00ed Pythonu 3 byla realizov\u00e1na a\u017e v posledn\u00ed v\u011btvi Mercurial 5.2. <\/p>\n

O\u010dek\u00e1v\u00e1n\u00ed ohledn\u011b stability portu pro Python 3 nejsou p\u0159\u00edzniv\u00e1. Vzhledem k tomu, \u017ee se p\u0159edpokl\u00e1d\u00e1, \u017ee v k\u00f3du se n\u011bkolik let budou vyskytovat n\u00e1hodn\u00e9 chyby, jeliko\u017e testy nepokryj\u00ed 100 % k\u00f3dov\u00e9 z\u00e1kladny a mnoh\u00e9 probl\u00e9my z\u016fstanou nepov\u0161imnuty p\u0159i statick\u00e9 anal\u00fdze a projev\u00ed se a\u017e b\u011bhem b\u011bhu. Krom\u011b toho z\u016fst\u00e1v\u00e1 mnoho extern\u00edch dopl\u0148k\u016f a roz\u0161\u00ed\u0159en\u00ed nep\u0159eveden\u00fdch na Python 3.
\nJeliko\u017e bylo p\u0159i portov\u00e1n\u00ed p\u0159ijato rozhodnut\u00ed postupn\u011b adaptovat k\u00f3d pro Python 3, zat\u00edmco se zachovala podpora Pythonu 2, k\u00f3d byl zat\u00ed\u017een mnoha hacky pro sou\u017eit\u00ed Pythonu 2 a 3, kter\u00e9 bude nutn\u00e9 po ukon\u010den\u00ed podpory Pythonu 2 odstranit. <\/p>\n

Komentuj\u00edc\u00ed situaci s Pythonem 3, udr\u017eovatel Mercurialu pova\u017euje rozhodnut\u00ed prosazovat l\u00e1maj\u00edc\u00ed kompatibilitu Pythonu 3 a vnucovat ho jako nov\u00fd, lep\u0161\u00ed jazyk, bez dostupn\u00fdch pr\u016flomov\u00fdch vylep\u0161en\u00ed pro v\u00fdvoj\u00e1\u0159e, za velkou chybu, kter\u00e1 zp\u016fsobila zna\u010dnou \u0161kodu komunit\u011b a je p\u0159\u00edkladem toho, jak se nemaj\u00ed velk\u00e9 projekty chovat. M\u00edsto postupn\u00e9ho zvy\u0161ov\u00e1n\u00ed funkcionality a poskytov\u00e1n\u00ed mo\u017enosti inkrement\u00e1ln\u00ed adaptace aplikac\u00ed, byli v\u00fdvoj\u00e1\u0159i p\u0159i vyd\u00e1n\u00ed Pythonu 3 nuceni p\u0159episovat k\u00f3d a vynakl\u00e1dat prost\u0159edky na udr\u017eov\u00e1n\u00ed odd\u011blen\u00fdch v\u011btv\u00ed pro Python 2 a Python 3. A\u017e sedm let po vyd\u00e1n\u00ed Pythonu 3.0 byly v Pythonu 3.5 implementov\u00e1ny mo\u017enosti, kter\u00e9 usnadnily proces p\u0159echodu a zajistily funkcionalitu jedn\u00e9 k\u00f3dov\u00e9 z\u00e1kladny s Pythonem 2 a Pythonem 3. <\/p>\n

<\/a><\/noindex><\/p>\n

Zdroj: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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