{"id":204235,"date":"2025-05-29T13:34:02","date_gmt":"2025-05-29T05:34:02","guid":{"rendered":"https:\/\/server.hk\/cnblog\/204235\/"},"modified":"2025-05-29T13:34:02","modified_gmt":"2025-05-29T05:34:02","slug":"python-%e5%b0%8f%e8%90%8c%e6%96%b0%e9%81%ad%e9%81%87-attributeerror-module-__main__-has-no-attribute-xxx-%e9%94%99%e8%af%af%ef%bc%8c%e5%a6%82%e4%bd%95%e8%a7%a3%e5%86%b3%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/204235\/","title":{"rendered":"Python \u5c0f\u840c\u65b0\u906d\u9047 AttributeError: module \\&#8217;__main__\\&#8217; has no attribute \\&#8217;xxx\\&#8217; \u9519\u8bef\uff0c\u5982\u4f55\u89e3\u51b3\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Python \u5c0f\u840c\u65b0\u906d\u9047 AttributeError: module \\&#8217;__main__\\&#8217; has no attribute \\&#8217;xxx\\&#8217; \u9519\u8bef\uff0c\u5982\u4f55\u89e3\u51b3\uff1f<\/h1>\n<p>\u6b22\u8fce\u5404\u4f4d\u5c0f\u4f19\u4f34\u6765\u5230\uff0c\u76f8\u805a\u4e8e\u6b64\u90fd\u662f\u7f18\u54c8\u54c8\u54c8\uff01\u4eca\u5929\u6211\u7ed9\u5927\u5bb6\u5e26\u6765\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u8bb2\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\uff0c\u5982\u679c\u4f60\u5bf9<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u76f8\u5173\u7684\u77e5\u8bc6\u975e\u5e38\u611f\u5174\u8da3\u6216\u8005\u6b63\u5728\u81ea\u5b66\uff0c\u90fd\u53ef\u4ee5\u5173\u6ce8\u6211\uff0c\u6211\u4f1a\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u6587\u7ae0\uff01\u5f53\u7136\uff0c\u6709\u4ec0\u4e48\u5efa\u8bae\u4e5f\u6b22\u8fce\u5728\u8bc4\u8bba\u7559\u8a00\u63d0\u51fa\uff01\u4e00\u8d77\u5b66\u4e60\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241102\/1730507263672571ff84a1a.jpg\" class=\"aligncenter\"><\/p>\n<p>python \u5c0f\u840c\u65b0\u906d\u9047attributeerror\u9519\u8bef<\/p>\n<p>\u8bb8\u591a\u521d\u5b66\u8005\u5728\u7f16\u5199\u4ee3\u7801\u8fc7\u7a0b\u4e2d\u4f1a\u51fa\u73b0\u4e00\u4e2a\u5341\u5206\u5e38\u89c1\u7684\u9519\u8bef\uff0c\u90a3\u5c31\u662fattributeerror\uff1amodule &#8216;__main__&#8217; has no attribute &#8216;xxx&#8217;\u3002\u5f53\u51fa\u73b0\u8fd9\u6837\u7684\u9519\u8bef\u65f6\uff0c\u5927\u591a\u6570\u60c5\u51b5\u4e0b\u95ee\u9898\u6e90\u4e8e\u5728\u5176\u4ed6\u6a21\u5757\u4e2d\u4f7f\u7528__main__\u6a21\u5757\u4e2d\u7684\u7c7b\u6216\u53d8\u91cf\u5bfc\u81f4\u7684\u3002<\/p>\n<p>\u5bfc\u81f4\u8fd9\u79cd\u9519\u8bef\u7684\u6700\u5e38\u89c1\u539f\u56e0\u662f\uff1a<\/p>\n<ul>\n<li><strong>\u6a21\u5757\u540d\u9519\u8bef\uff1a<\/strong> \u786e\u4fdd\u4f60\u5728\u5bfc\u5165\u6a21\u5757\u65f6\u4f7f\u7528\u4e86\u6b63\u786e\u7684\u6a21\u5757\u540d\u3002<\/li>\n<li><strong>\u672a\u6b63\u786e\u5bfc\u5165\u6a21\u5757\uff1a<\/strong> \u786e\u4fdd\u4f60\u4f7f\u7528 import \u6216 from &#8230; import \u8bed\u53e5\u6b63\u786e\u5bfc\u5165\u4e86\u6a21\u5757\u3002<\/li>\n<li><strong>\u9519\u8bef\u7684\u5c5e\u6027\u540d\u79f0\uff1a<\/strong> \u786e\u8ba4\u4f60\u6b63\u5728\u5c1d\u8bd5\u8bbf\u95ee\u7684\u5c5e\u6027\u540d\u79f0\u5728\u5bfc\u5165\u7684\u6a21\u5757\u4e2d\u5b9a\u4e49\u3002<\/li>\n<\/ul>\n<p>\u8ba9\u6211\u4eec\u6765\u770b\u4e00\u4e2a\u793a\u4f8b\u5e76\u5c1d\u8bd5\u901a\u8fc7\u6253\u5370cls\u53d8\u91cf\u6765\u8c03\u8bd5\u9519\u8bef\u3002<\/p>\n<pre>import sys\nfrom core import enter\nfrom core import student\nfrom core import manager\n\nflag0 = 1\n\ndef main():\n    print('\\033[1;34m\u6b22\u8fce\u8fdb\u5165\u5b66\u751f\u9009\u8bfe\u7cfb\u7edf\\033[0m'.center(50, '*'))\n    ret = enter.login()\n    if ret:\n        cls = getattr(sys.modules['__main__'], ret['status'])  # \u5f97\u5230\u7c7b\u540d\n        if cls == 'student':\n            obj = student.cls(ret['username'])  # \u6839\u636e\u7c7b\u540d\u5b9e\u4f8b\u5316\u5bf9\u8c61\n        else:\n            obj = manager.cls(ret['username'])\n        while flag0:\n            if ret['status'] == 'student':\n                print('\\033[1;34m\u5b66\u751f\u9009\u8bfe\u7cfb\u7edf:\u5b66\u751f\u7aef\\033[0m'.center(50, '*') + '\\n')\n                print(('\\033[1;34m\u5f53\u524d\u767b\u5f55\u7528\u6237:%s\\033[0m' % obj.name).center(50))\n            else:\n                print('\\033[1;34m\u5b66\u751f\u9009\u8bfe\u7cfb\u7edf:\u7ba1\u7406\u5458\u7aef\\033[0m'.center(50, '*') + '\\n')\n            for key, item in enumerate(cls.li, 1):\n                print(str(key).center(20), item[0])\n            num = int(input('\\n\u8f93\u5165\u60a8\u8981\u505a\u7684\u64cd\u4f5c\u5e8f\u53f7\uff1a'))\n            if num &lt;= len(cls.li):\n                getattr(obj, cls.li[num - 1][1])()\n            else:\n                print('\\033[1;32m\\n\u4f60\u7684\u8f93\u5165\u6709\u8bef,\u8bf7\u91cd\u65b0\u8f93\u5165!\\033[0m')<\/pre>\n<p>\u63a5\u7740\uff0c\u6211\u4eec\u6253\u5370\u4e86\u4e00\u4e0bcls\u53d8\u91cf\u7684\u7c7b\u578b\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre>&gt;&gt;&gt; type(cls)\n&lt;class 'function'&gt;<\/pre>\n<p>\u53d1\u73b0cls\u53d8\u91cf\u5c45\u7136\u662f\u4e00\u4e2a\u51fd\u6570\u3002\u8fd9\u8bf4\u660e\u6211\u4eec\u6ca1\u6709\u6b63\u786e\u5bfc\u5165\u6a21\u5757\uff0c\u56e0\u6b64\u65e0\u6cd5\u5728\u4e3b\u6a21\u5757\u4e2d\u4f7f\u7528core\u6a21\u5757\u4e2d\u7684\u7c7b\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u68c0\u67e5\u4e86core\u6a21\u5757\u7684\u4ee3\u7801\uff0c\u53d1\u73b0\u5b9e\u9645\u4e0acore\u6a21\u5757\u4e2d\u5e76\u6ca1\u6709\u5b9a\u4e49enter\u3001student\u3001manager\u8fd9\u4e09\u4e2a\u7c7b\uff0c\u56e0\u6b64 naturalmente \u4f1a\u62a5\u9519\u3002<\/p>\n<p>\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u6211\u4eec\u9700\u8981\u4fee\u6539core\u6a21\u5757\u7684\u4ee3\u7801\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre>class Student:\n    # ...\n\nclass Manager:\n    # ...<\/pre>\n<p>\u4fee\u6539\u5b8ccore\u6a21\u5757\u540e\uff0c\u6211\u4eec\u518d\u6b21\u8fd0\u884c\u4e3b\u6a21\u5757\uff0c\u95ee\u9898\u89e3\u51b3\u4e86\uff01<\/p>\n<p>\u4eca\u5929\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u5e0c\u671b\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff1b\u5173\u4e8e\u6587\u7ae0\u7684\u6280\u672f\u77e5\u8bc6\u6211\u4eec\u4f1a\u4e00\u70b9\u70b9\u6df1\u5165\u4ecb\u7ecd\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u4e00\u8d77\u5b66\u4e60\u7f16\u7a0b~<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Python \u5c0f\u840c\u65b0\u906d\u9047 Att&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-204235","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204235","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=204235"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204235\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=204235"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=204235"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=204235"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}