{"id":4797,"date":"2020-02-17T14:52:54","date_gmt":"2020-02-17T06:52:54","guid":{"rendered":"https:\/\/www.xttblog.com\/?p=4797"},"modified":"2020-02-17T14:52:54","modified_gmt":"2020-02-17T06:52:54","slug":"python-%e6%8a%a5%e9%94%99-typeerror%ef%bc%9adoesnotexist%e5%af%b9%e8%b1%a1%e4%b8%8d%e5%8f%af%e8%b0%83%e7%94%a8","status":"publish","type":"post","link":"https:\/\/www.xttblog.com\/?p=4797","title":{"rendered":"Python \u62a5\u9519 TypeError\uff1a&#8217;DoesNotExist&#8217;\u5bf9\u8c61\u4e0d\u53ef\u8c03\u7528"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u8fd9\u4e24\u5e74\uff0cPython \u518d\u6b21\u5927\u706b\u3002\u5bfc\u81f4\u8d8a\u6765\u8d8a\u591a\u7684\u4eba\u5b66 Python\uff0c\u4f46\u662f\u65b0\u624b\u5b66 Python \u4e00\u822c\u4f1a\u9047\u5230\u5404\u79cd\u5404\u6837\u7684\u95ee\u9898\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4eca\u5929\uff0c\u6211\u53c8\u5728 Stackoverflow \u4e0a\u770b\u5230\u4e86\u4e00\u4e2a Python \u975e\u5e38\u8457\u540d\u7684 TypeError \u9519\u8bef\u95ee\u9898\uff1aDoesNotExist \u5bf9\u8c61\u4e0d\u53ef\u8c03\u7528\u3002\u4eca\u5929\u6211\u4eec\u4e00\u8d77\u6765\u770b\u770b\u8fd9\u4e2a\u95ee\u9898\u8be5\u5982\u4f55\u89e3\u51b3\uff01<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">TypeError: \u2018DoesNotExist\u2019 object is not callable<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6211\u4eec\u73b0\u5728\u770b\u4e0b\u9762\u8fd9\u4e2a\u4ee3\u7801\u5757\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>try:\n    u = User.objects.get(email__iexact=useremail)\nexcept User.DoesNotExist:\n    ...<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u6bb5\u4ee3\u7801\u5e76\u4e0d\u603b\u662f\u66dd\u51fa DoesNotExist \u5f02\u5e38\uff0c\u800c\u662f\u968f\u673a\u7684\u62a5\u9519\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>File \"\/srv\/myapp\/registration\/models.py\", line 23, in get_or_create_user\n  u = User.objects.get(email__iexact=useremail)\n\nFile \"\/usr\/local\/lib\/python2.6\/dist-packages\/django\/db\/models\/manager.py\", line 132, in get\n  return self.get_query_set().get(*args, **kwargs)\n\nFile \"\/usr\/local\/lib\/python2.6\/dist-packages\/django\/db\/models\/query.py\", line 349, in get\n  % self.model._meta.object_name)\n\nTypeError: \u2018DoesNotExist\u2019 object is not callable<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u9519\u8bef\u8be6\u60c5\u5927\u6982\u5982\u4e0a\u6240\u793a\u3002\u6b63\u5e38\u60c5\u51b5\u4e0b\uff0c\u8fd9\u6bb5\u4ee3\u7801\u662f\u6709\u6548\u7684\u3002\u4f46\u5b83\u5374\u603b\u662f\u968f\u673a\u7684\u629b\u51fa DoesNotExist \u9519\u8bef\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728 Stackoverflow \u4e0a\uff0c\u6709\u4eba\u5efa\u8bae\u6211\u4eec\u5c06\u4e0b\u9762\u7684\u4ee3\u7801\u8fdb\u884c\u66ff\u6362\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>try:\n    do_something()\nexcept User.MultipleObjectsReturned, User.DoesNotExist:\n    pass<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0a\u9762\u7684\u4ee3\u7801\u6539\u4e3a\u4e0b\u9762\u8fd9\u79cd\u65b9\u5f0f\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>try:\n    do_something()\nexcept (User.MultipleObjectsReturned, User.DoesNotExist):\n    pass<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u662f Python 2.6 \u4ee5\u4e0a\u7684\u7248\u672c\uff0c\u53ef\u4ee5\u7528\u4e0b\u9762\u7684\u4ee3\u7801\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>except User.MultipleObjectsReturned as User.DoesNotExist:<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">User.MultipleObjectsReturned \u5f02\u5e38\u7684\u5b9e\u4f8b\u8986\u76d6 User.DoesNotExist\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u76f8\u540c\u7684\u8fdb\u7a0b\u7a0d\u540e\u5904\u7406\u4e00\u4e2a\u4e0d\u540c\u7684\u8bf7\u6c42\u65f6\uff0c\u4f60\u4f1a\u5f97\u5230 TypeError \u662f\u56e0\u4e3a\u60a8\u7684\u4ee3\u7801\u5c1d\u8bd5\u8c03\u7528\u5df2\u66ff\u6362 User.DoesNotExist \u7684\u5f02\u5e38\u5b9e\u4f8b\u3002<\/p>\n<!-- <audio autoplay=\"autoplay\" height=\"100\" width=\"100\" hidden=\"true\"><source src=\"https:\/\/c.coka.la\/orAvPR.mp3\" type=\"audio\/mp3\"\/><\/audio><img decoding=\"async\" src=\"https:\/\/images.weserv.nl\/?url=https:\/\/ws3.sinaimg.cn\/large\/8fa5dcfcgy1g4em3rzar5j20ib089ae0.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/> --><p><!-- <img decoding=\"async\" src=\"https:\/\/raw.githubusercontent.com\/xmt1139057136\/xttblog\/master\/8fa5dcfcgy1g4em3rzar5j20ib089ae0.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/>--><img decoding=\"async\" src=\"https:\/\/saas.51autoparts.cn\/api\/admin\/sys-file\/oss\/file?fileName=84db51f8561e448f9a4fda2eff0811f9.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/><\/p><p>\u6700\u540e\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u4e2a\u4eba\u5fae\u4fe1\u516c\u4f17\u53f7\uff1a\u4e1a\u4f59\u8349\uff08yyucao\uff09\uff01<b>\u53ef\u52a0\u4f5c\u8005\u5fae\u4fe1\u53f7\uff1a<font color=\"red\">xttblog2<\/font>\u3002\u5907\u6ce8\uff1a\u201c1\u201d\uff0c\u6dfb\u52a0\u535a\u4e3b\u5fae\u4fe1\u62c9\u4f60\u8fdb\u5fae\u4fe1\u7fa4\u3002\u5907\u6ce8\u9519\u8bef\u4e0d\u4f1a\u540c\u610f\u597d\u53cb\u7533\u8bf7\u3002<\/b>\u518d\u6b21\u611f\u8c22\u60a8\u7684\u5173\u6ce8\uff01\u540e\u7eed\u6709\u7cbe\u5f69\u5185\u5bb9\u4f1a\u7b2c\u4e00\u65f6\u95f4\u53d1\u7ed9\u60a8\uff01\u539f\u521b\u6587\u7ae0\u6295\u7a3f\u8bf7\u53d1\u9001\u81f3532009913@qq.com\u90ae\u7bb1\u3002\u5546\u52a1\u5408\u4f5c\u4e5f\u53ef\u6dfb\u52a0\u4f5c\u8005\u5fae\u4fe1\u8fdb\u884c\u8054\u7cfb\uff01<\/p><p>\u672c\u6587\u539f\u6587\u51fa\u5904\uff1a<a href=\"https:\/\/www.xttblog.com\">\u4e1a\u4f59\u8349<\/a>\uff1a &raquo; <a href=\"https:\/\/www.xttblog.com\/?p=4797\">Python \u62a5\u9519 TypeError\uff1a&#8217;DoesNotExist&#8217;\u5bf9\u8c61\u4e0d\u53ef\u8c03\u7528<\/a><\/p><!-- <div class=\"bd-reward-stl\"><button id=\"bdRewardBtn\"><span><\/span><\/button><\/div> -->","protected":false},"excerpt":{"rendered":"<p>\u8fd9\u4e24\u5e74\uff0cPython \u518d\u6b21\u5927\u706b\u3002\u5bfc\u81f4\u8d8a\u6765\u8d8a\u591a\u7684\u4eba\u5b66 Python\uff0c\u4f46\u662f\u65b0\u624b\u5b66 Python \u4e00\u822c\u4f1a\u9047\u5230\u5404\u79cd\u5404\u6837 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[601,1210,1229,1213,1214],"class_list":["post-4797","post","type-post","status-publish","format-standard","hentry","category-yyzt","tag-outofmemoryerror","tag-python","tag-pythonic"],"_links":{"self":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/4797","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4797"}],"version-history":[{"count":1,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/4797\/revisions"}],"predecessor-version":[{"id":4798,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/4797\/revisions\/4798"}],"wp:attachment":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4797"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4797"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4797"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}