{"id":34324,"date":"2019-10-31T21:57:38","date_gmt":"2019-10-31T18:57:38","guid":{"rendered":"https:\/\/prohoster.info\/blog\/namechena-bolshaya-chistka-standartnoj-biblioteki-python\/"},"modified":"2019-10-31T21:57:38","modified_gmt":"2019-10-31T18:57:38","slug":"namechena-bolshaya-chistka-standartnoj-biblioteki-python","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/namechena-bolshaya-chistka-standartnoj-biblioteki-python","title":{"rendered":"Megnagyobb tiszt\u00edt\u00e1s v\u00e1r a Python standard k\u00f6nyvt\u00e1r\u00e1ban","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

A Python projekt fejleszt\u0151i k\u00f6zz\u00e9tett\u00e9k<\/a><\/noindex> javaslatot (PEP 594) terjesztettek el\u0151 a standard k\u00f6nyvt\u00e1r jelent\u0151s \u00e1tvizsg\u00e1l\u00e1s\u00e1ra. A Python standard k\u00f6nyvt\u00e1r\u00e1b\u00f3l javasolt elt\u00e1vol\u00edtani a kifejezetten elavult \u00e9s sz\u0171k spektrum\u00fa lehet\u0151s\u00e9geket, valamint azokat az \u00f6sszetev\u0151ket, amelyek architektur\u00e1lis probl\u00e9m\u00e1kat hordoznak, \u00e9s amelyeket nem siker\u00fcl egys\u00e9ges\u00edteni minden platformon. <\/p>\n

P\u00e9ld\u00e1ul javasolt\u00e1k olyan modulok elt\u00e1vol\u00edt\u00e1s\u00e1t a standard k\u00f6nyvt\u00e1rb\u00f3l, mint a crypt (Windows alatt nem el\u00e9rhet\u0151 \u00e9s a hash algoritmusok el\u00e9rhet\u0151s\u00e9ge a rendszerk\u00f6nyvt\u00e1rakt\u00f3l f\u00fcgg), cgi (nem optim\u00e1lis architekt\u00fara, \u00faj folyamat ind\u00edt\u00e1s\u00e1ra van sz\u00fcks\u00e9g minden k\u00e9r\u00e9sn\u00e9l), imp (az importlib haszn\u00e1lat\u00e1t aj\u00e1nlj\u00e1k), pipes (a subprocess modult javasolj\u00e1k), nis (a NSS, LDAP vagy Kerberos\/GSSAPI haszn\u00e1lat\u00e1t aj\u00e1nlj\u00e1k), spwd (nem javasolt k\u00f6zvetlen\u00fcl dolgozni a felhaszn\u00e1l\u00f3i adatb\u00e1zissal). Tov\u00e1bb\u00e1 elt\u00e1vol\u00edt\u00e1sra javasolt\u00e1k a binhex, uu, xdrlib,
\n aifc,
\n audioop,
\n chunk,
\n imghdr,
\n ossaudiodev,
\n sndhdr,
\n sunau,
\n asynchat,
\n asyncore,
\n cgitb,
\n smtpd,
\n nntplib, macpath,
\n formatter, msilib \u00e9s parser.<\/p>\n

A javasolt tervek szerint a Python 3.8-as verzi\u00f3ban a fent eml\u00edtett modulokat elavultnak jel\u00f6lik meg, a Python 3.8-as verzi\u00f3ban figyelmeztet\u00e9st kezdenek el kiadni, \u00e9s a Python 3.10-es verzi\u00f3ban elt\u00e1vol\u00edtj\u00e1k a CPython t\u00e1rol\u00f3kb\u00f3l.
\n A parser modult a 3.9-es verzi\u00f3ban tervezik elt\u00e1vol\u00edtani, mivel azt m\u00e1r a Python 2.5-\u00f6s kiad\u00e1s \u00f3ta elavultnak jel\u00f6lt\u00e9k meg, a macpath modult pedig a 3.8-as \u00e1gon. Az alap\u00e1llom\u00e1nyb\u00f3l val\u00f3 elt\u00e1vol\u00edt\u00e1s ut\u00e1n a k\u00f3dot k\u00fcl\u00f6n legacylib t\u00e1rol\u00f3ba helyezik \u00e1t, \u00e9s sorsa a k\u00f6z\u00f6ss\u00e9g \u00e9rdekl\u0151d\u00e9s\u00e9n fog m\u00falni. A Python 3.9-es \u00e1gat v\u00e1rhat\u00f3an 2026-ig t\u00e1mogatj\u00e1k, \u00edgy elegend\u0151 id\u0151 \u00e1ll rendelkez\u00e9sre a projektek k\u00fcls\u0151 alternat\u00edv\u00e1kra val\u00f3 \u00e1t\u00e1ll\u00edt\u00e1s\u00e1ra.<\/p>\n

Eredetileg elt\u00e1vol\u00edt\u00e1sra javasolt\u00e1k az ftplib, optparse, getopt, colorsys, fileinput, lib2to3 \u00e9s wave modulokat is, de \u00fagy d\u00f6nt\u00f6ttek, hogy egyel\u0151re hagyj\u00e1k a standard k\u00f6nyvt\u00e1rban, mivel sz\u00e9les k\u00f6rben elterjedtek \u00e9s tov\u00e1bbra is relev\u00e1nsak, annak ellen\u00e9re, hogy l\u00e9teznek fejlettebb alternat\u00edv\u00e1k vagy oper\u00e1ci\u00f3s rendszerekhez k\u00f6t\u00f6tt funkci\u00f3k.<\/p>\n

Eml\u00e9kezz\u00fcnk, hogy a Python projekt kezdetben a \u201ebatteries included\u201d megk\u00f6zel\u00edt\u00e9st alkalmazza, amely keret\u00e9ben a standard k\u00f6nyvt\u00e1rban sz\u00e9lesk\u00f6r\u0171 funkci\u00f3k\u00edn\u00e1latot ny\u00fajtanak k\u00fcl\u00f6nb\u00f6z\u0151 alkalmaz\u00e1si ter\u00fcletekhez. Ennek a megk\u00f6zel\u00edt\u00e9snek az el\u0151nyei k\u00f6z\u00e9 tartozik a Python projektek karbantart\u00e1s\u00e1nak egyszer\u0171s\u00edt\u00e9se \u00e9s a felhaszn\u00e1l\u00e1sra ker\u00fcl\u0151 modulok biztons\u00e1g\u00e1nak nyomon k\u00f6vet\u00e9se. A modulokban tal\u00e1lhat\u00f3 sebezhet\u0151s\u00e9gek sokszor sebezhet\u0151s\u00e9gi forr\u00e1sok az \u0151ket haszn\u00e1l\u00f3 alkalmaz\u00e1sokban. Ha a funkci\u00f3k a standard k\u00f6nyvt\u00e1r r\u00e9szei, elegend\u0151 a f\u0151 projekt \u00e1llapot\u00e1nak ellen\u0151rz\u00e9se. A standard k\u00f6nyvt\u00e1r feloszt\u00e1sakor a fejleszt\u0151knek harmadik f\u00e9l moduljait kell haszn\u00e1lniuk, amelyeken bel\u00fcl a sebezhet\u0151s\u00e9geket k\u00fcl\u00f6n-k\u00fcl\u00f6n kell ellen\u0151rizni. Magas fok\u00fa fragment\u00e1ci\u00f3 \u00e9s nagy sz\u00e1m\u00fa f\u00fcgg\u0151s\u00e9g eset\u00e9n t\u00e1mad\u00e1si fenyeget\u00e9s mer\u00fcl fel a modulok fejleszt\u0151i \u00e1ltal k\u00edn\u00e1lt infrastrukt\u00fara kompromitt\u00e1l\u00e1s\u00e1n kereszt\u00fcl.<\/p>\n

M\u00e1sr\u00e9szt, minden tov\u00e1bbi modul a standard k\u00f6nyvt\u00e1rban er\u0151forr\u00e1st ig\u00e9nyel a Python fejleszt\u0151csapatt\u00f3l a karbantart\u00e1shoz. A k\u00f6nyvt\u00e1rban sok duplik\u00e1lt \u00e9s felesleges funkci\u00f3 halmoz\u00f3dott fel, \u00e9s ezek kiz\u00e1r\u00e1s\u00e1val cs\u00f6kkenthet\u0151k a karbantart\u00e1si k\u00f6lts\u00e9gek. A katal\u00f3gus fejl\u0151d\u00e9s\u00e9vel PyPI<\/a><\/noindex> \u00e9s a tov\u00e1bbi csomagok telep\u00edt\u00e9s\u00e9nek \u00e9s let\u00f6lt\u00e9s\u00e9nek folyamat\u00e1nak egyszer\u0171s\u00edt\u00e9s\u00e9vel a k\u00fcls\u0151 modulok haszn\u00e1lata ma m\u00e1r annyira megszokott, mint a be\u00e9p\u00edtett funkci\u00f3k\u00e9. <\/p>\n

Egyre t\u00f6bb fejleszt\u0151 haszn\u00e1l funkcion\u00e1lisabb k\u00fcls\u0151 alternat\u00edv\u00e1kat a standard modulok helyett, p\u00e9ld\u00e1ul az lxml modult az xml helyett. A standard k\u00f6nyvt\u00e1rb\u00f3l elt\u00e1vol\u00edtott elhagyott modulok n\u00f6velhetik a k\u00f6z\u00f6ss\u00e9g \u00e1ltal akt\u00edvan fejlesztett alternat\u00edv\u00e1k n\u00e9pszer\u0171s\u00e9g\u00e9t. Emellett a standard k\u00f6nyvt\u00e1r cs\u00f6kkent\u00e9se a telep\u00edt\u00e9s alapm\u00e9ret\u00e9nek cs\u00f6kkent\u00e9s\u00e9t is maga ut\u00e1n vonja, amely fontos, ha a Pythont be\u00e1gyazott platformokon haszn\u00e1lj\u00e1k korl\u00e1tozott t\u00e1rol\u00e1si m\u00e9rettel.<\/p>\n

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

Forr\u00e1s: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 Python \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0438 \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d\u0438\u0435 (PEP 594) \u043f\u043e \u043f\u0440\u043e\u0432\u0435\u0434\u0435\u043d\u0438\u044e \u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0439 \u0447\u0438\u0441\u0442\u043a\u0438 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u043e\u0439 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438. \u041a \u0432\u044b\u043d\u043e\u0441\u0443 \u0438\u0437 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u043e\u0439 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 Python \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u044e\u0442\u0441\u044f \u043a\u0430\u043a \u044f\u0432\u043d\u043e \u0443\u0441\u0442\u0430\u0440\u0435\u0432\u0448\u0438\u0435 \u0438 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\u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 Python | ProHoster","og:description":"\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 Python \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0438 \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d\u0438\u0435 (PEP 594) \u043f\u043e \u043f\u0440\u043e\u0432\u0435\u0434\u0435\u043d\u0438\u044e \u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0439 \u0447\u0438\u0441\u0442\u043a\u0438 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u043e\u0439 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