{"id":974696,"date":"2024-12-27T06:07:15","date_gmt":"2024-12-26T22:07:15","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/974696.html"},"modified":"2024-12-27T06:07:17","modified_gmt":"2024-12-26T22:07:17","slug":"python%e4%b8%ad%e5%a6%82%e4%bd%95%e5%a2%9e%e5%8a%a0%e8%b7%af%e5%be%84","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/974696.html","title":{"rendered":"python\u4e2d\u5982\u4f55\u589e\u52a0\u8def\u5f84"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/24200305\/0e91f982-f4c6-4846-b26d-4b09e4c6c276.webp\" alt=\"python\u4e2d\u5982\u4f55\u589e\u52a0\u8def\u5f84\" \/><\/p>\n<p><p> \u5728Python\u4e2d\u589e\u52a0\u8def\u5f84\u6709\u51e0\u79cd\u65b9\u6cd5\uff0c\u4e3b\u8981\u5305\u62ec\u4f7f\u7528<code>sys.path.append()<\/code>\u3001\u914d\u7f6e\u73af\u5883\u53d8\u91cf\u3001\u4f7f\u7528<code>.pth<\/code>\u6587\u4ef6\u7b49\u3002\u5176\u4e2d\uff0c<strong>sys.path.append()\u662f\u6700\u5e38\u7528\u7684\u65b9\u6cd5<\/strong>\uff0c\u5b83\u53ef\u4ee5\u5728\u7a0b\u5e8f\u8fd0\u884c\u65f6\u52a8\u6001\u589e\u52a0\u8def\u5f84\u3002\u4f7f\u7528<code>sys.path.append()<\/code>\u53ef\u4ee5\u65b9\u4fbf\u5730\u5c06\u65b0\u7684\u76ee\u5f55\u6dfb\u52a0\u5230Python\u7684\u641c\u7d22\u8def\u5f84\u4e2d\uff0c\u4ece\u800c\u4f7f\u5f97Python\u80fd\u591f\u5728\u8fd9\u4e9b\u76ee\u5f55\u4e2d\u67e5\u627e\u6a21\u5757\u3002\u6b64\u5916\uff0c\u914d\u7f6e\u73af\u5883\u53d8\u91cfPYTHONPATH\u6216\u4f7f\u7528.pth\u6587\u4ef6\u4e5f\u53ef\u4ee5\u5b9e\u73b0\u589e\u52a0\u8def\u5f84\u7684\u6548\u679c\uff0c\u4f46\u8fd9\u4e9b\u65b9\u6cd5\u9700\u8981\u66f4\u6539\u7cfb\u7edf\u8bbe\u7f6e\uff0c\u9002\u5408\u4e8e\u9700\u8981\u957f\u671f\u751f\u6548\u7684\u60c5\u51b5\u3002<\/p>\n<\/p>\n<p><h3>\u4e00\u3001\u4f7f\u7528sys.path.append()\u65b9\u6cd5<\/h3>\n<\/p>\n<p><p><code>sys.path.append()<\/code>\u662f\u6700\u5e38\u7528\u7684\u52a8\u6001\u589e\u52a0\u8def\u5f84\u7684\u65b9\u6cd5\u3002\u5b83\u5141\u8bb8\u5728\u7a0b\u5e8f\u8fd0\u884c\u65f6\u4e34\u65f6\u589e\u52a0Python\u7684\u6a21\u5757\u641c\u7d22\u8def\u5f84\uff0c\u975e\u5e38\u9002\u5408\u4e8e\u9700\u8981\u5728\u811a\u672c\u4e2d\u6dfb\u52a0\u7279\u5b9a\u6a21\u5757\u8def\u5f84\u7684\u60c5\u51b5\u3002\u4e0b\u9762\u8be6\u7ec6\u8bf4\u660e\u5982\u4f55\u4f7f\u7528\u6b64\u65b9\u6cd5\u3002<\/p>\n<\/p>\n<p><h4>1\u3001\u57fa\u672c\u7528\u6cd5<\/h4>\n<\/p>\n<p><p>\u5728Python\u811a\u672c\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u5bfc\u5165<code>sys<\/code>\u6a21\u5757\u5e76\u8c03\u7528<code>sys.path.append()<\/code>\u65b9\u6cd5\u6765\u6dfb\u52a0\u65b0\u7684\u8def\u5f84\u3002\u5177\u4f53\u7528\u6cd5\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import sys<\/p>\n<h2><strong>\u5047\u8bbe\u4f60\u8981\u6dfb\u52a0\u7684\u8def\u5f84\u662f&#39;\/path\/to\/directory&#39;<\/strong><\/h2>\n<p>sys.path.append(&#39;\/path\/to\/directory&#39;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u6837\uff0cPython\u5728\u5bfc\u5165\u6a21\u5757\u65f6\u5c31\u4f1a\u5728\u6307\u5b9a\u8def\u5f84\u4e2d\u67e5\u627e\u3002<\/p>\n<\/p>\n<p><h4>2\u3001\u6ce8\u610f\u4e8b\u9879<\/h4>\n<\/p>\n<p><p>\u4f7f\u7528<code>sys.path.append()<\/code>\u65f6\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u51e0\u70b9\uff1a<\/p>\n<\/p>\n<ul>\n<li>\n<p><strong>\u8def\u5f84\u987a\u5e8f<\/strong>\uff1a<code>sys.path.append()<\/code>\u4f1a\u5c06\u65b0\u7684\u8def\u5f84\u6dfb\u52a0\u5230\u641c\u7d22\u8def\u5f84\u5217\u8868\u7684\u672b\u5c3e\u3002\u5982\u679c\u4f60\u5e0c\u671b\u5728\u641c\u7d22\u65f6\u4f18\u5148\u67e5\u627e\u65b0\u6dfb\u52a0\u7684\u8def\u5f84\uff0c\u53ef\u4ee5\u4f7f\u7528<code>sys.path.insert(0, &#39;\/path\/to\/directory&#39;)<\/code>\u5c06\u8def\u5f84\u6dfb\u52a0\u5230\u5217\u8868\u7684\u5f00\u5934\u3002<\/p>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u76f8\u5bf9\u8def\u5f84\u4e0e\u7edd\u5bf9\u8def\u5f84<\/strong>\uff1a\u5efa\u8bae\u4f7f\u7528\u7edd\u5bf9\u8def\u5f84\uff0c\u4ee5\u907f\u514d\u76f8\u5bf9\u8def\u5f84\u5e26\u6765\u7684\u4e0d\u786e\u5b9a\u6027\u3002<\/p>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u8de8\u5e73\u53f0\u517c\u5bb9\u6027<\/strong>\uff1a\u5728\u4e0d\u540c\u64cd\u4f5c\u7cfb\u7edf\u4e0a\uff0c\u8def\u5f84\u5206\u9694\u7b26\u53ef\u80fd\u4e0d\u540c\u3002\u53ef\u4ee5\u4f7f\u7528<code>os.path.join()<\/code>\u6765\u6784\u5efa\u5e73\u53f0\u65e0\u5173\u7684\u8def\u5f84\u3002<\/p>\n<\/p>\n<\/li>\n<\/ul>\n<p><h3>\u4e8c\u3001\u914d\u7f6ePYTHONPATH\u73af\u5883\u53d8\u91cf<\/h3>\n<\/p>\n<p><p>\u9664\u4e86\u5728\u811a\u672c\u4e2d\u52a8\u6001\u6dfb\u52a0\u8def\u5f84\u5916\uff0c\u8fd8\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e\u73af\u5883\u53d8\u91cfPYTHONPATH\u6765\u589e\u52a0Python\u7684\u641c\u7d22\u8def\u5f84\u3002\u8fd9\u79cd\u65b9\u6cd5\u9002\u5408\u4e8e\u9700\u8981\u957f\u671f\u751f\u6548\u7684\u8def\u5f84\u8bbe\u7f6e\u3002<\/p>\n<\/p>\n<p><h4>1\u3001\u8bbe\u7f6ePYTHONPATH<\/h4>\n<\/p>\n<p><p>\u5728\u4e0d\u540c\u7684\u64cd\u4f5c\u7cfb\u7edf\u4e2d\uff0c\u8bbe\u7f6ePYTHONPATH\u7684\u65b9\u6cd5\u6709\u6240\u4e0d\u540c\uff1a<\/p>\n<\/p>\n<ul>\n<li>\n<p><strong>Windows<\/strong>\uff1a\u53ef\u4ee5\u5728\u547d\u4ee4\u63d0\u793a\u7b26\u4e2d\u4f7f\u7528<code>set<\/code>\u547d\u4ee4\uff0c\u6216\u8005\u5728\u7cfb\u7edf\u73af\u5883\u53d8\u91cf\u4e2d\u6dfb\u52a0PYTHONPATH\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-cmd\">set PYTHONPATH=%PYTHONPATH%;C:\\path\\to\\directory<\/p>\n<p><\/code><\/pre>\n<\/p>\n<\/li>\n<li>\n<p><strong>Linux\u548cmacOS<\/strong>\uff1a\u53ef\u4ee5\u5728\u7ec8\u7aef\u4e2d\u4f7f\u7528<code>export<\/code>\u547d\u4ee4\uff0c\u6216\u8005\u5728<code>.bashrc<\/code>\u3001<code>.bash_profile<\/code>\u7b49\u914d\u7f6e\u6587\u4ef6\u4e2d\u6dfb\u52a0\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-bash\">export PYTHONPATH=$PYTHONPATH:\/path\/to\/directory<\/p>\n<p><\/code><\/pre>\n<\/p>\n<\/li>\n<\/ul>\n<p><h4>2\u3001\u9a8c\u8bc1\u8bbe\u7f6e<\/h4>\n<\/p>\n<p><p>\u8bbe\u7f6e\u5b8c\u6210\u540e\uff0c\u53ef\u4ee5\u901a\u8fc7Python\u7684<code>sys.path<\/code>\u5c5e\u6027\u6765\u9a8c\u8bc1\u662f\u5426\u6210\u529f\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import sys<\/p>\n<p>print(sys.path)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e09\u3001\u4f7f\u7528.pth\u6587\u4ef6<\/h3>\n<\/p>\n<p><p>.pth\u6587\u4ef6\u662f\u4e00\u79cd\u66f4\u52a0\u6301\u4e45\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5728Python\u7684<code>site-packages<\/code>\u76ee\u5f55\u4e2d\u6dfb\u52a0\u4e00\u4e2a\u5305\u542b\u8def\u5f84\u7684.pth\u6587\u4ef6\uff0c\u4f7f\u5f97\u8def\u5f84\u5728\u6bcf\u6b21\u542f\u52a8Python\u65f6\u81ea\u52a8\u751f\u6548\u3002<\/p>\n<\/p>\n<p><h4>1\u3001\u521b\u5efa.pth\u6587\u4ef6<\/h4>\n<\/p>\n<p><p>\u5728Python\u7684<code>site-packages<\/code>\u76ee\u5f55\u4e2d\u521b\u5efa\u4e00\u4e2a\u540e\u7f00\u4e3a<code>.pth<\/code>\u7684\u6587\u4ef6\uff0c\u5e76\u5728\u6587\u4ef6\u4e2d\u5199\u5165\u9700\u8981\u6dfb\u52a0\u7684\u8def\u5f84\uff0c\u6bcf\u884c\u4e00\u4e2a\u3002\u4f8b\u5982\uff0c\u521b\u5efa<code>my_paths.pth<\/code>\u6587\u4ef6\uff0c\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><pre><code>\/path\/to\/directory1<\/p>\n<p>\/path\/to\/directory2<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>2\u3001\u6548\u679c\u9a8c\u8bc1<\/h4>\n<\/p>\n<p><p>\u548c\u8bbe\u7f6ePYTHONPATH\u4e00\u6837\uff0c\u4f7f\u7528.pth\u6587\u4ef6\u540e\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7<code>sys.path<\/code>\u6765\u9a8c\u8bc1\u8def\u5f84\u662f\u5426\u88ab\u6dfb\u52a0\u3002<\/p>\n<\/p>\n<p><h3>\u56db\u3001\u603b\u7ed3<\/h3>\n<\/p>\n<p><p>\u5728Python\u4e2d\u589e\u52a0\u8def\u5f84\u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u9009\u62e9\u54ea\u79cd\u65b9\u6cd5\u53d6\u51b3\u4e8e\u5177\u4f53\u7684\u9700\u6c42\uff1a<\/p>\n<\/p>\n<ul>\n<li>\n<p><strong>\u4e34\u65f6\u589e\u52a0\u8def\u5f84<\/strong>\uff1a<code>sys.path.append()<\/code>\u662f\u6700\u7b80\u5355\u3001\u76f4\u63a5\u7684\u65b9\u6cd5\uff0c\u9002\u5408\u4e8e\u811a\u672c\u4e2d\u9700\u8981\u4e34\u65f6\u6dfb\u52a0\u8def\u5f84\u7684\u60c5\u51b5\u3002<\/p>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u957f\u671f\u589e\u52a0\u8def\u5f84<\/strong>\uff1a\u914d\u7f6ePYTHONPATH\u73af\u5883\u53d8\u91cf\u6216\u4f7f\u7528.pth\u6587\u4ef6\u66f4\u9002\u5408\u9700\u8981\u957f\u671f\u751f\u6548\u7684\u8def\u5f84\u914d\u7f6e\u3002<\/p>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u6ce8\u610f\u4e8b\u9879<\/strong>\uff1a\u65e0\u8bba\u4f7f\u7528\u54ea\u79cd\u65b9\u6cd5\uff0c\u90fd\u5e94\u6ce8\u610f\u8def\u5f84\u7684\u6b63\u786e\u6027\u548c\u8de8\u5e73\u53f0\u517c\u5bb9\u6027\u3002<\/p>\n<\/p>\n<\/li>\n<\/ul>\n<p><p>\u901a\u8fc7\u4e0a\u8ff0\u65b9\u6cd5\uff0cPython\u7684\u6a21\u5757\u641c\u7d22\u8def\u5f84\u53ef\u4ee5\u7075\u6d3b\u5730\u8fdb\u884c\u914d\u7f6e\uff0c\u4ece\u800c\u6ee1\u8db3\u4e0d\u540c\u7684\u5f00\u53d1\u9700\u6c42\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u53ef\u4ee5\u6839\u636e\u9879\u76ee\u7684\u7279\u70b9\u548c\u4e2a\u4eba\u7684\u4f7f\u7528\u4e60\u60ef\uff0c\u9009\u62e9\u6700\u5408\u9002\u7684\u65b9\u6cd5\u6765\u7ba1\u7406Python\u7684\u641c\u7d22\u8def\u5f84\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u6dfb\u52a0\u65b0\u7684\u6a21\u5757\u641c\u7d22\u8def\u5f84\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u60a8\u53ef\u4ee5\u901a\u8fc7\u4fee\u6539<code>sys.path<\/code>\u5217\u8868\u6765\u6dfb\u52a0\u65b0\u7684\u6a21\u5757\u641c\u7d22\u8def\u5f84\u3002\u53ea\u9700\u5bfc\u5165<code>sys<\/code>\u6a21\u5757\uff0c\u7136\u540e\u5c06\u65b0\u7684\u8def\u5f84\u9644\u52a0\u5230<code>sys.path<\/code>\u4e2d\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code class=\"language-python\">import sys\nsys.path.append(&#39;\/your\/new\/path&#39;)\n<\/code><\/pre>\n<p>\u8fd9\u6837\uff0cPython\u4f1a\u5728\u8be5\u8def\u5f84\u4e2d\u641c\u7d22\u6a21\u5757\u548c\u5305\u3002<\/p>\n<p><strong>\u6211\u53ef\u4ee5\u4f7f\u7528\u73af\u5883\u53d8\u91cf\u6765\u589e\u52a0Python\u7684\u641c\u7d22\u8def\u5f84\u5417\uff1f<\/strong><br \/>\u662f\u7684\uff0c\u60a8\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e<code>PYTHONPATH<\/code>\u73af\u5883\u53d8\u91cf\u6765\u589e\u52a0Python\u7684\u641c\u7d22\u8def\u5f84\u3002\u53ea\u9700\u5728\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u914d\u7f6e\u8be5\u53d8\u91cf\uff0c\u6307\u5411\u60a8\u5e0c\u671bPython\u641c\u7d22\u7684\u76ee\u5f55\u3002\u8fd9\u6837\uff0cPython\u5728\u542f\u52a8\u65f6\u4f1a\u81ea\u52a8\u52a0\u8f7d\u8fd9\u4e9b\u8def\u5f84\u3002<\/p>\n<p><strong>\u5728\u865a\u62df\u73af\u5883\u4e2d\u5982\u4f55\u7ba1\u7406\u6a21\u5757\u8def\u5f84\uff1f<\/strong><br \/>\u865a\u62df\u73af\u5883\u5141\u8bb8\u60a8\u521b\u5efa\u9694\u79bb\u7684Python\u73af\u5883\uff0c\u60a8\u53ef\u4ee5\u5728\u5176\u4e2d\u81ea\u7531\u6dfb\u52a0\u6216\u4fee\u6539\u6a21\u5757\u8def\u5f84\u3002\u4f7f\u7528<code>venv<\/code>\u6216<code>virtualenv<\/code>\u521b\u5efa\u865a\u62df\u73af\u5883\u540e\uff0c\u60a8\u53ef\u4ee5\u5728\u8be5\u73af\u5883\u4e2d\u4f7f\u7528\u4e0e\u5168\u5c40\u73af\u5883\u76f8\u540c\u7684\u65b9\u6cd5\u6765\u6dfb\u52a0\u8def\u5f84\uff0c\u6bd4\u5982\u4fee\u6539<code>sys.path<\/code>\u6216\u8bbe\u7f6e<code>PYTHONPATH<\/code>\u3002\u786e\u4fdd\u5728\u6fc0\u6d3b\u865a\u62df\u73af\u5883\u540e\u8fdb\u884c\u64cd\u4f5c\uff0c\u4ee5\u4fbf\u8def\u5f84\u66f4\u6539\u4ec5\u5f71\u54cd\u8be5\u73af\u5883\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\u589e\u52a0\u8def\u5f84\u6709\u51e0\u79cd\u65b9\u6cd5\uff0c\u4e3b\u8981\u5305\u62ec\u4f7f\u7528sys.path.append()\u3001\u914d\u7f6e\u73af\u5883\u53d8\u91cf\u3001\u4f7f\u7528.pth 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