{"id":24,"date":"2016-03-20T18:18:45","date_gmt":"2016-03-20T10:18:45","guid":{"rendered":"http:\/\/5x44.cn\/?p=24"},"modified":"2016-03-22T10:31:51","modified_gmt":"2016-03-22T02:31:51","slug":"whats-new-in-dive-into-python3","status":"publish","type":"post","link":"https:\/\/www.5x44.cn\/?p=24","title":{"rendered":"what&#8217;s new in &#8220;Dive Into Python3&#8221;"},"content":{"rendered":"<h3 class=\"title pre fs1\"><span class=\"tcnt\">\uff081\uff09String\uff1aPython2\u6709\u201cstring\u201d\u548c\u201cUnicode string\u201d\uff1bPython3\u662f\u201cbyte\u201d\u548c\u201cstring\u201d\u3002string\u548cbyte\u4e4b\u95f4\u4e0d\u4f1a\u9690\u5f0f\u8f6c\u6362\u3002<br \/>\n\uff082\uff09File\uff1a\u5728\u6587\u672c\u6a21\u5f0f\u4e2d\u8bfb\u3001\u5199\u6587\u4ef6\u9700\u8981encoding\u53c2\u6570\uff1b\u4e00\u4e9b\u65b9\u6cd5\u7edf\u8ba1\u5b57\u7b26\uff0c\u53e6\u4e00\u4e9b\u7edf\u8ba1\u5b57\u8282\u3002<br \/>\n\uff083\uff09HTTP Web Service\uff1ahttplib2\u6a21\u5757\u5728HTTP\u534f\u8bae\u4e0a\u83b7\u5f97header\u548cdata\u3002HTTP header\u8fd4\u56destring\uff0c\u4f46\u662fHTTP body\u8fd4\u56de\u5b57\u8282\u3002<br \/>\n\uff084\uff09 \u5e8f\u5217\u5316Python\u5bf9\u8c61\uff08Serializing Python Objects\uff09\uff1a\u5728Python3\u4e2d\u5b66\u4e60pickle\u6a21\u5757\u4e2d\u7684\u65b0\u6570\u636e\u683c\u5f0f\uff08\u5e76\u4e14\u5411\u524d\u517c\u5bb9python2\uff09\u3002Python3\u652f\u6301JSON\u5e8f\u5217\u5316\u5bf9\u8c61\uff0c\u5e8f\u5217 \u5316\u5bf9\u8c61\u5e76\u6ca1\u6709\u4efb\u4f55\u5b57\u8282\u7c7b\u578b\uff0c\u6211\u4eec\u4f1a\u5b66\u4e60\u5982\u4f55\u5bf9\u5b83\u8fdb\u884c\u201c\u4fee\u526a\u201d\u3002<br \/>\n\uff085\uff09\u6848\u4f8b\u5206\u6790\u201c\u79fb\u690dchardet\u5230Python3\u201d\uff1a\u5b83\u5230\u5904\u90fd\u662f\u4e71\u4e03\u516b\u7cdf\u7684byte\u548cstring\u3002<br \/>\n\uff086\uff09\u5373\u4f7f\u4f60\u4e0d\u60f3\u5173\u6ce8Unicode\uff0c\u4f60\u4e5f\u8981\u8bfbPython3\u4e2d\u7684\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\uff0c\u56e0\u4e3a\u5b83\u5b8c\u5168\u4e0d\u540c\u4e8epython2\u3002<br \/>\n\uff087\uff09Iterator\u5728Python3\u4e2d\u65e0\u5904\u4e0d\u5728\u3002<br \/>\n\uff088\uff09 \u4e4b\u524d\u7684\u300aDive Into Python\u300b\u6240\u6709\u53ef\u7528\u7684XML\u5e93\u90fd\u5f88\u5dee\u3002\u7136\u540eFredrik Lundh\u5199\u4e86ElementTree\uff0c\u8fd9\u4e2a\u5e93\u5f88\u597d\u7528\u3002\u73b0\u5728python3\u5df2\u7ecf\u628aElementTree\u52a0\u5165\u5230\u6807\u51c6\u5e93\uff0c\u5e76\u4e14\u5b83\u5f62\u6210\u4e86\u672c\u4e66\uff08Dive Into Python3\uff09\u65b0\u7684XML\u7ae0\u8282\u3002\u65e7\u7684XML\u8bed\u6cd5\u540c\u6837\u53ef\u4ee5\u7528\uff0c\u4f46\u662f\u8bf7\u907f\u514d\u4f7f\u7528\u5b83\u4eec\uff0c\u56e0\u4e3a\u5b83\u4eec\u5f88\u5dee\u3002<br \/>\n\uff089\uff09\u4ee3\u7801\u5e93\u7684\u51fa\u73b0\uff0c\u5982\uff1aPython Package Index(PyPI)<\/span><\/h3>\n","protected":false},"excerpt":{"rendered":"<p>\uff081\uff09String\uff1aPython2\u6709\u201cstring\u201d\u548c\u201cUnicode string\u201d\uff1bPython3\u662f\u201cbyte\u201d\u548c\u201cstring\u201d\u3002string\u548cbyte\u4e4b&#8230;<\/p>\n<p class=\"read-more\"><a class=\"btn btn-default\" href=\"https:\/\/www.5x44.cn\/?p=24\"> Read More<span class=\"screen-reader-text\">  Read More<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[6],"class_list":["post-24","post","type-post","status-publish","format-standard","hentry","category-dive-into-python3","tag-it"],"_links":{"self":[{"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/posts\/24","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=24"}],"version-history":[{"count":1,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/posts\/24\/revisions"}],"predecessor-version":[{"id":25,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/posts\/24\/revisions\/25"}],"wp:attachment":[{"href":"https:\/\/www.5x44.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=24"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=24"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=24"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}