{"@attributes":{"version":"2.0"},"channel":{"title":"Python on \u9694\u53f6\u9ec4\u83ba Yanbin's Blog - \u8f6f\u4ef6\u7f16\u7a0b\u5b9e\u8df5","link":"https:\/\/yanbin.blog\/tags\/python\/","description":"Recent content in Python on \u9694\u53f6\u9ec4\u83ba Yanbin's Blog - \u8f6f\u4ef6\u7f16\u7a0b\u5b9e\u8df5","generator":"Hugo -- gohugo.io","language":"en-us","managingEditor":"yabqiu@gmail.com (Yanbin Qiu)","webMaster":"yabqiu@gmail.com (Yanbin Qiu)","copyright":"Yanbin \u9694\u53f6\u9ec4\u83ba","lastBuildDate":"Thu, 19 Mar 2026 16:22:48 -0500","item":[{"title":"\u7b80\u5355\u4f8b\u5b50\u7528 Python + PostgreSQL \u6f14\u793a RAG","link":"https:\/\/yanbin.blog\/rag-python-postgresql-pgvector\/","pubDate":"Thu, 19 Mar 2026 16:22:48 -0500","author":"yabqiu@gmail.com (Yanbin Qiu)","guid":"https:\/\/yanbin.blog\/rag-python-postgresql-pgvector\/","description":"\n

RAG(Retrieval-Augmented Generation) \u4e2d\u6587\u540d\u4e3a\u68c0\u7d22\u589e\u5f3a\u751f\u6210, \u5728 LLM \u66f4\u65e9\u671f\u706b\u8fc7\u7684\u6982\u5ff5\uff0c\u56e0\u4e3a\u90a3\u65f6\u5019\u4e0a\u4e0b\u6587\u8f83\u5c0f\uff0c\u6240\u4ee5\u8981\u68c0\u7d22 LLM \u4e2d\u6ca1\u6709\u5185\u5bb9(\u79c1\u6709\u6570\u636e)\n\u987b\u5148\u5728\u672c\u5730\u7528\u76f8\u5173\u6027\u7b97\u6cd5\u627e\u5230\u4e00\u4e9b\u76f8\u5173\u7684\u7247\u65ad\uff0c\u62fc\u63a5\u5230\u8f93\u5165\u63d0\u793a\u8bcd\u4e2d\u53d1\u9001\u7ed9 LLM\u3002\u800c\u76ee\u524d\u4e0a\u4e0b\u6587\u90fd\u8fbe\u5230 1M \u4ee5\u4e0a\u7684\u7ea7\u522b\uff0c\u4e00\u6b21\u4f1a\u8bdd\u751a\u81f3\u53ef\u4ee5\u628a\u79c1\u6709\u7684\u5185\u5bb9\u5168\u90e8\u585e\n\u63d0\u793a\u8bcd\u4e2d\u800c\u5582\u7ed9 LLM, \u5c31\u4e0d\u5fc5\u7528 RAG, \u800c\u4e14\u5185\u5bb9\u66f4\u5b8c\u6574. \u6bd4\u5982\u4f60\u53ef\u4ee5\u628a\u6574\u90e8\u5c0f\u8bf4\u5185\u5bb9\u8ba9 LLM \u53bb\u9605\u8bfb\uff0c\u7136\u540e\u6839\u636e\u8f93\u51fa\u603b\u7ed3\uff0c\u6216\u8ba8\u8bba\u5173\u4e8e\u8be5\u5c0f\u8bf4\u7684\u5404\u79cd\u95ee\u9898\u3002\n\u50cf\u73b0\u5728\u7684 Agent Skills \u7684 Reference \u5c31\u4f1a\u628a\u4e00\u5927\u6bb5\u5185\u5bb9\u4e22\u7ed9 LLM.<\/p>\n

\u6240\u8c13\u7684\u68c0\u7d22(Retrieval) \u5373\u5728\u4e0e LLM \u4ea4\u4e92\u4e4b\u524d\uff0c\u4ece\u672c\u5730(\u5982\u5411\u91cf\u6570\u636e\u5e93)\u4e2d\u627e\u5230\u4e00\u4e9b\u76f8\u5173\u7684\u7247\u65ad\uff0c\u62fc\u63a5\u5230\u63d0\u793a\u8bcd\u4e2d\uff0c\u4ee5\u6b64\u8fbe\u5230\u589e\u5f3a\u5185\u5bb9\u751f\u6210\u7684\u6548\u679c.<\/p>\n

\u8fd9\u91cc\u4e0d\u53bb\u8ba8\u8bba RAG \u662f\u5426\u5df2\u6b7b\u7684\u95ee\u9898\uff0c\u53ea\u60f3\u7b80\u5355\u7684\u7528 Python, PostgreSQL \u52a0 pgvector \u6269\u5c55\u6765\u4f53\u9a8c\u4e00\u4e0b\u4ec0\u4e48\u662f RAG, \u4ee5\u53ca\u5b83\u7684\u57fa\u672c\u6d41\u7a0b\u662f\u4ec0\u4e48\u6837\u5b50\u7684.\n\u5e76\u4e14\u5bf9\u5411\u91cf\u6570\u636e\u5e93\u4e2d\u662f\u5982\u4f55\u5b58\u50a8\u548c\u68c0\u7d22\u7684.<\/p>"},{"title":"SciPy \u6700\u4f18\u5316\u4e4b\u6700\u5c0f\u5316","link":"https:\/\/yanbin.blog\/scipy-optimize-minimize\/","pubDate":"Thu, 05 Dec 2024 01:06:36 -0600","author":"yabqiu@gmail.com (Yanbin Qiu)","guid":"https:\/\/yanbin.blog\/scipy-optimize-minimize\/","description":"\n[latexpage]<\/p>\n\n\u00a0SciPy \u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u7b97\u6cd5\u5e93\u548c\u6570\u5b66\u5de5\u5177\u5305\uff0c\u53ef\u4ee5\u5904\u7406\u6700\u4f18\u5316\u3001\u7ebf\u6027\u4ee3\u6570\u3001\u79ef\u5206\u3001\u63d2\u503c\u3001\u62df\u5408\u3001\u7279\u6b8a\u51fd\u6570\u3001\u5feb\u901f\u5085\u91cc\u53f6\u53d8\u6362\u3001\u4fe1\u53f7\u5904\u7406\u3001\u56fe\u50cf\u5904\u7406\u3001\u5e38\u5fae\u5206\u65b9\u7a0b\u6c42\u89e3\u5668\u7b49\u3002 \u5b83\u4f9d\u8d56\u4e8e NumPy, Pandas \u4e5f\u4f9d\u8d56\u4e86 NumPy\u3002\u672c\u6587\u91cd\u70b9\u662f\u4f53\u9a8c\u5b83\u600e\u4e48\u5904\u7406\u6700\u4f18\u5316\u7684\u95ee\u9898\u3002\u5f88\u591a\u60c5\u5f62\u4e0b\u901a\u8fc7 SciPy \u7684\u00a0 optimize.minimize \u65b9\u6cd5\u5bfb\u6c42\u76ee\u6807\u51fd\u6570\u6700\u5c0f\u503c\u7684\u8fc7\u7a0b\u5f97\u5230\u6700\u4f18\u5316\u7684\u8f93\u5165\u4e0e\u8f93\u51fa\u3002\u6bd4\u5982\u5bfb\u627e\u4e8c\u6b21\u5143\u51fd\u6570\u7684\u6839\uff0c\u6c42\u89e3\u7ebf\u6027\/\u52a8\u6001\u89c4\u5219\uff0c\u91d1\u878d\u884c\u4e1a\u7684\u8ba1\u7b97\u51fa\u6700\u4f18\u6295\u8d44\u7ec4\u5408\u7684\u8d44\u4ea7\u5206\u914d\u7b49\u3002\u4e3a\u4ec0\u4e48 SciPy \u6ca1\u6709 maximize \u65b9\u6cd5\u5462\uff0c\u56e0\u4e3a\u6ca1\u6709\u5fc5\u8981\uff0c\u60f3\u8981\u627e\u5230\u6700\u5927\u5316\u7684\u503c\uff0c\u53ea\u8981\u628a\u76ee\u6807\u51fd\u6570\u7684\u503c\u53d6\u53cd\uff0c\u6216\u8005\u662f\u6a21\u6216\u7edd\u5bf9\u503c\u7684\u6700\u5c0f\u503c\u3002\u770b\u5230 minimize \u65b9\u6cd5\u540d\u66f4\u8ba9\u4eba\u89c9\u5f97\u76ee\u6807\u51fd\u6570\u4f1a\u6709\u4e00\u4e2a\u6536\u655b\u503c\u3002\n\u867d\u7136 SciPy \u5bf9\u7279\u5b9a\u7684\u95ee\u9898\u6709\u66f4\u76f4\u767d\u7684\u51fd\u6570\uff0c\u5982\u6c42\u6839\u6709 optimize.root, \u7ebf\u6027\u89c4\u5219 optimize.linprog(\u73b0\u4e0d\u5efa\u8bae\u4f7f\u7528)\uff0c\u4f46\u5404\u79cd\u4f18\u5316\u57fa\u672c\u90fd\u53ef\u4ee5\u56de\u5f52\u5230 minimize \u65b9\u6cd5\u8c03\u7528\u3002minimize\u00a0\u65b9\u6cd5\u7684\u539f\u578b\u662f\n

1<\/span>def<\/span> minimize<\/span>(<\/span>fun<\/span>,<\/span> x0<\/span>,<\/span> args<\/span>=<\/span>(),<\/span> method<\/span>=<\/span>None<\/span>,<\/span> jac<\/span>=<\/span>None<\/span>,<\/span> hess<\/span>=<\/span>None<\/span>,<\/span>\n<\/span><\/span>2<\/span> hessp<\/span>=<\/span>None<\/span>,<\/span> bounds<\/span>=<\/span>None<\/span>,<\/span> constraints<\/span>=<\/span>(),<\/span> tol<\/span>=<\/span>None<\/span>,<\/span>\n<\/span><\/span>3<\/span> callback<\/span>=<\/span>None<\/span>,<\/span> options<\/span>=<\/span>None<\/span>):<\/span><\/span><\/span><\/code><\/pre><\/div>\n\n\u9664\u4e86\u5fc5\u987b\u7684\u76ee\u6807\u51fd\u6570\u548c\u521d\u59cb\u503c\uff0c\u8fd8\u6709\u66f4\u591a\u53c2\u6570\uff0c\u50cf\u5e38\u7528\u7684\u7ea6\u675f(contraints) - \u6ee1\u8db3\u67d0\u4e9b\u7279\u5b9a\u6761\u4ef6\u7684\u6700\u4f18\u5316, \u7ebf\u7a0b\u6216\u975e\u7ebf\u6027\u7ea6\u675f\u7b49; \u6c42\u89e3\u65b9\u6cd5(method) - Powell, Newton-CG \u7b49\n\u4e0b\u9762\u7528\u00a0optimize.minimize \u6765\u6c42\u89e3\u4e00\u4e9b\u95ee\u9898"},{"title":"Python logging \u4f7f\u7528\u7b14\u8bb0","link":"https:\/\/yanbin.blog\/python-logging-usages\/","pubDate":"Wed, 16 Oct 2024 16:49:58 -0500","author":"yabqiu@gmail.com (Yanbin Qiu)","guid":"https:\/\/yanbin.blog\/python-logging-usages\/","description":"\n\u4f7f\u7528 Python \u7684\u8bdd\u7528\u4e0d\u7740\u50cf Java \u90a3\u6837\u662f\u8003\u8651\u7528 Logback\u00a0 \u8fd8\u662f Log4J \u7684\u95ee\u9898\uff0c\u56e0\u4e3a\u5b83\u5185\u7f6e\u63d0\u4f9b\u4e86\u5b8c\u5907\u529f\u80fd\u7684 logging \u5e93\u3002\u867d\u7136 JDK\u00a0 \u4e5f\u6709 java.util.logging(JUL), \u5b83\u7684\u7279\u6027\u5176\u5b9e\u4e5f\u4e0d\u5dee\uff0c\u5982\u65e5\u5fd7\u7ea7\u522b\uff0c\u8f93\u51fa\u683c\u5f0f\uff0c\u4e0d\u540c\u7684\u8f93\u51fa\u76ee\u7684\u5730\u7684\u9009\u62e9\uff0c\u4f46\u5728 Logback \u548c Log4J \u7684\u5149\u73af\u4e4b\u4e0b\u51e0\u4e4e\u65e0\u4eba\u95ee\u6d25\u3002\u76f8\u6bd4\u800c\u8a00 Python \u7684 logging \u5374\u6781\u4e3a\u53d7\u5ba0\uff0c\u975e\u5fc5\u8981\u65f6\u57fa\u672c\u4e0d\u4f1a\u53bb\u8003\u8651\u5f15\u5165\u7b2c\u4e09\u65b9\u7684\u65e5\u5fd7\u5e93\uff0c\u5982 Loguru<\/a>, LogBook<\/a>, Structlog<\/a>, Picologging<\/a>, \u5c3d\u7ba1\u5b83\u4eec\u4e5f\u5f88\u51fa\u8272\uff0c\u6bd5\u7adf\u662f\u5eb6\u51fa\u3002<\/p>\n\n
logging\u00a0\u7684\u6700\u57fa\u672c\u7528\u6cd5<\/h3>\n\u5728\u57fa\u672c\u524d\u9762\u52a0\u662f\u6700<\/code> \u5b57\uff0c\u662f\u56e0\u4e3a\u8fd9\u4e00\u8282\u4ec5\u4ec5\u662f\u5982\u4f55\u8ba9 logging \u4f5c\u4e3a print() \u7684\u66ff\u4ee3\u54c1\uff0c\u6682\u4e0d\u6d89\u53ca\u5230\u53c2\u6570\u7684\u4f20\u9012\uff0c\u5f02\u5e38\u7684\u8f93\u51fa\uff0c\u4ee5\u53ca\u683c\u5f0f\u5b9a\u5236\uff0c\u65e5\u5fd7\u5f80\u54ea\u91cc\u8f93\u51fa\u7684\u95ee\u9898\u3002\n
1<\/span>import<\/span> logging<\/span>\n<\/span><\/span>2<\/span>\n<\/span><\/span>3<\/span>logging<\/span>.<\/span>info<\/span>(<\/span>"hello"<\/span>)<\/span><\/span><\/span><\/code><\/pre><\/div>\n\n\u8fd0\u884c\uff0c\u4ec0\u4e48\u4e5f\u770b\u4e0d\u5230\uff0c\u56e0\u4e3a Python logging \u7684\u9ed8\u8ba4\u7ea7\u522b\u662f warning, \u8fd9\u4e0d\u7b26\u5408\u4eba\u7684\u57fa\u672c\u8ba4\u77e5\uff0c\u4e00\u822c logging.info() \u8d77\u7801\u662f\u7528\u6765\u66ff\u4ee3 print() \u7684\uff0c\u5c45\u7136\u76f4\u63a5\u7528\u65e0\u6cd5\u8f93\u51fa\uff0c\u4e0d\u77e5\u8be5\u5e93\u7684\u8bbe\u8ba1\u8005\u662f\u600e\u4e48\u4e2a\u60f3\u6cd5\u3002"},{"title":"\u5e94\u7528 AWS Lambda \u90e8\u7f72 FastAPI","link":"https:\/\/yanbin.blog\/deploy-fastapi-on-aws-lambda\/","pubDate":"Mon, 01 May 2023 14:31:45 -0500","author":"yabqiu@gmail.com (Yanbin Qiu)","guid":"https:\/\/yanbin.blog\/deploy-fastapi-on-aws-lambda\/","description":"\n\u524d\u4e24\u5e74\u7528 AWS Lambda \u642d\u914d API Gateway \u4f7f\u7528\u662f\u4e3a\u4e86\u7701\u94b1\uff0c\u56e0\u4e3a\u6ca1\u6709\u8bf7\u6c42\u65f6\u4e0d\u82b1\u94b1\u3002\u53c8\u7531\u4e8e\u662f Rest API, \u6240\u4ee5\u5b9e\u73b0\u90e8\u5206\u7528\u4e86 FastAPI \u7684\u88c5\u9970\u5668\uff0c\u4f46\u4e0d\u5b9e\u9645\u542f\u52a8 FastAPI \u7684 Web \u670d\u52a1\uff0cLambda \u7684 handler \u65b9\u6cd5\u6839\u636e routeKey \u624b\u52a8\u6620\u5c04\u5230 FastAPI \u7684\u88c5\u9970\u65b9\u6cd5\u3002\u5927\u6982\u5b9e\u73b0\u662f<\/p>\n
\ndef lambda_handler(event: dict, context):
\n\u00a0 \u00a0 fastapi_function = locate_fastapi_function(event['routeKey'])
\n\u00a0 \u00a0 return fastapi_function(<extract parameters from event>)\n<\/blockquote>\n\u5f53\u65f6\u4e5f\u601d\u8003\u7740\u80fd\u4e0d\u80fd\u628a Lambda \u7684\u8bf7\u6c42\u4e0e FastAPI \u7684 Web \u670d\u52a1\u6865\u63a5\u8d77\u6765\uff0c\u5374\u53c8\u4e0d\u80fd\u771f\u6b63\u542f\u52a8\u4e00\u4e2a\u00a0 Web \u670d\u52a1\uff0c\u5426\u5219 Lambda \u8c03\u7528\u4e0d\u80fd\u7ed3\u675f\u3002\u6bd4\u5982\u8bf4 AWS Lambda \u6536\u5230\u8bf7\u6c42\u65f6\u5feb\u901f\u542f\u52a8 FastAPI \u670d\u52a1\uff0c\u8be5\u670d\u52a1\u7ed1\u5b9a\u5230\u00a0 TCP \u7aef\u53e3\u6216 Socket \u6587\u4ef6\u90fd\u884c\uff0c\u7136\u540e Lambda \u8bf7\u6c42\u4ee3\u7406\u5230 FastAPI \u670d\u52a1\uff0c\u6700\u540e\u5173\u95ed FastAPI \u670d\u52a1\uff0c\u4f46\u662f\u60f3\u6765\u90fd\u4e0d\u90a3\u4e48\u5bb9\u6613\u5b9e\u73b0\u3002"},{"title":"Python Flask \u6846\u67b6\u7684\u5e76\u53d1\u80fd\u529b\u53ca\u7ebf,\u8fdb\u7a0b\u6a21\u578b","link":"https:\/\/yanbin.blog\/python-flask-concurrency-thread-process\/","pubDate":"Sat, 18 Feb 2023 15:07:07 -0600","author":"yabqiu@gmail.com (Yanbin Qiu)","guid":"https:\/\/yanbin.blog\/python-flask-concurrency-thread-process\/","description":"\n\u672c\u6587\u65e8\u5728\u6d4b\u8bd5 Python Flask \u6846\u67b6\u7684\u9ed8\u8ba4\u5e76\u53d1\u80fd\u529b\uff0c\u5373\u540c\u65f6\u80fd\u5904\u7406\u591a\u5c11\u4e2a\u8bf7\u6c42\uff0c\u4ee5\u53ca\u8bf7\u6c42\u7b49\u5f85\u961f\u5217\u5927\u81f4\u6709\u591a\u5927; \u5e76\u627e\u5230\u5982\u4f55\u6539\u53d8\u9ed8\u8ba4\u5e76\u53d1\u6570\u3002\u867d\u7136\u7f51\u4e0a\u6216\u8bb8\u5f88\u5bb9\u6613\u627e\u5230\u5b83\u4eec\u7684\u9ed8\u8ba4\u5e76\u53d1\u6570\uff0c\u4f46\u901a\u8fc7\u5b9e\u9a8c\u7684\u65b9\u5f0f\u53ef\u4ee5\u5f97\u5230\u66f4\u611f\u6027\u7684\u8ba4\u8bc6\u3002<\/p>\n\n\u672c\u6587\u5199\u4f5c\u65f6\u4f7f\u7528\u7684\u73af\u5883\u4e3a\n
    \n
  1. \u6d4b\u8bd5\u673a\u5668\u4e3a MacBook Pro, CPU 6 \u6838\u8d85\u7ebf\u7a0b\uff0c\u5185\u5b58 16 Gb<\/li>\n
  2. JMeter 5.5 --\u00a0\u8fde\u7eed\u53d1\u9001\u8bf7\u6216\u538b\u529b\u6d4b\u8bd5<\/li>\n
  3. Python 3.10.9<\/li>\n
  4. Flask 2.2.2<\/li>\n<\/ol>\n\n\u4ece JMeter \u6bcf\u534a\u79d2\u53d1\u9001\u4e00\u4e2a\u8bf7\u6c42\uff0c\u8fde\u7eed\u53d1\u9001 1000 \u4e2a\uff0c\u7a0b\u5e8f\u4e2d API \u65b9\u6cd5\u63a5\u53d7\u5230\u8bf7\u6c42\u540e sleep 800 \u79d2\uff0c\u4fdd\u8bc1\u5728\u5168\u90e8 1000 \u4e2a\u8bf7\u6c42\u9001\u51fa\u4e4b\u524d\u4e00\u76f4\u5360\u7740\u8fde\u63a5\uff0c\u4ee5\u6b64\u6765\u627e\u5230\u540c\u65f6\u88ab\u5904\u7406\u7684\u8bf7\u6c42\u6570\u76ee\uff0c\u5e76\u4e14\u6709\u8db3\u591f\u7684\u65f6\u95f4\u7edf\u8ba1\u5f53\u524d\u7684 TCP \u8fde\u63a5\u6570\u3002\u5728\u6d4b\u8bd5\u6781\u7aef\u89c4\u6a21\u7684\u5e76\u53d1\u6570\u65f6\uff0c\u7531\u4e8e\u5728 Mac OS X \u5f88\u96be\u7a81\u7834 5000 \u4e2a\u7ebf\u7a0b\u7684\u9650\u5236\uff0c\u8fd9\u65f6\u5c31\u8ba9 JMeter \u5206\u5e03\u5230\u8fdc\u7a0b Linux(Docker \u6216\u865a\u62df\u673a) \u4e0a\u6267\u884c\u3002\n\u8bf7\u6c42\u7684 URL \u662f http:\/\/localhost:8080\/?id=${count}, \u5e26\u4e00\u4e2a\u81ea\u589e\u5e8f\u5217\u7528\u4ee5\u8bc6\u522b\u4e0d\u540c\u7684\u8bf7\u6c42\uff0c JMeter \u7684 Thread Group \u914d\u7f6e\u4e3a Number of Threads (users): 1000, Ramp-up period (seconds): 500"},{"title":"Python 3.10 \u5173\u952e\u65b0\u7279\u6027","link":"https:\/\/yanbin.blog\/python-3-10-new-features\/","pubDate":"Wed, 15 Jun 2022 14:14:56 -0500","author":"yabqiu@gmail.com (Yanbin Qiu)","guid":"https:\/\/yanbin.blog\/python-3-10-new-features\/","description":"\nPython 3.10 \u4e8e 2021-10-04 \u53d1\u5e03\uff0c\u81f3\u4eca\u5df2\u5927\u534a\u5e74\uff0c\u76ee\u524d AWS \u7684 Lambda \u5c1a\u672a\u76f4\u63a5\u652f\u6301\uff0c\u4f46\u7528 Docker \u955c\u50cf\u7684\u65b9\u5f0f\u4f7f\u7528 AWS Lambda \u662f\u53ef\u4ee5\u4f7f\u7528 Python 3.10\u3002Python \u4e00\u5e74\u4e00\u53d1\u5e03\u7684\u8282\u594f\u6bd4 Java LTS \u8fd8\u7d27\u5bc6\u3002\u4e0b\u4e00\u4e2a\u7248\u672c Python 3.11 \u9884\u8ba1\u5728 2022-10-03 \u53d1\u5e03\u3002\u5728\u5b66\u4e60 Python 3.10 \u4e4b\u524d\u5148\u56de\u987e\u4e00\u4e0b Python 3.7, 3.8, 3.9 \u7684\u7279\u6027(\u4e0d\u60f3\u5173\u5fc3\u4e4b\u524d\u7248\u672c\u7684\u53d8\u8fc1\u53ef\u76f4\u63a5\u8df3\u8dc3\u5230\u4e0b\u65b9\u7684 Python 3.10 \u65b0\u7279\u6027\u53bb)\nPython 3.7\u00a0\u6240\u5e26\u6765\u7684\u65b0\u7279\u6027<\/a>\n
      \n
    1. breakpoint()<\/li>\n
    2. \u6570\u636e\u7c7b(@dataclass)<\/li>\n
    3. \u7c7b\u578b\u63d0\u793a\u5f3a\u5316\u548c\u5ef6\u8fdf\u6ce8\u89e3\u6c42\u503c<\/li>\n
    4. \u65f6\u95f4\u7cbe\u5ea6\u7684\u63d0\u9ad8<\/li>\n
    5. \u4fdd\u8bc1\u5b57\u5178\u7684\u987a\u5e8f<\/li>\n
    6. async \u548c await\u00a0\u6210\u4e3a\u5173\u952e\u5b57<\/li>\n
    7. asyncio.run()\u00a0\u7b80\u5316\u4e8b\u4ef6\u5faa\u73af<\/li>\n
    8. \u4e0a\u4e0b\u6587\u53d8\u91cf(ContextVar) - \u53ef\u5b9e\u73b0 ThreadLocal \u548c SLF4J \u7684 MDC \u529f\u80fd<\/li>\n<\/ol>"},{"title":"\u5c0f\u5fc3 Python \u51fd\u6570\u9ed8\u8ba4\u53c2\u6570\u7684\u9677\u9631","link":"https:\/\/yanbin.blog\/careful-python-function-default-parameter\/","pubDate":"Fri, 14 Jan 2022 21:01:44 -0600","author":"yabqiu@gmail.com (Yanbin Qiu)","guid":"https:\/\/yanbin.blog\/careful-python-function-default-parameter\/","description":"\nPython \u7684\u51fd\u6570\u53c2\u6570\u652f\u6301\u9ed8\u8ba4\u503c\uff0c\u8fd9\u662f\u672c\u4eba\u4e00\u76f4\u559c\u6b22\u7684\u7279\u6027\uff0cPython \u4e0d\u652f\u6301\u65b9\u6cd5\u91cd\u8f7d\uff0c\u4f46\u9ed8\u8ba4\u53c2\u6570\u53ef\u8d77\u5230\u7c7b\u4f3c\u7684\u6548\u679c\uff0c\u8fd8\u4e0d\u7528\u5199\u591a\u4e2a\u51fd\u6570\u3002\u73b0\u5728\u652f\u6301\u9ed8\u8ba4\u53c2\u6570\u7684\u8bed\u8a00\u666e\u904d\u7684\uff0c\u50cf C++, C#, Ruby, Groovy, PHP, Scala, JavaScript \u7b49\uff0cJava \u8fd8\u4e0d\u884c\u3002<\/p>\n\n\u4f46\u662f\u7279\u522b\u8981\u5c0f\u5fc3\uff0cPython \u7684\u51fd\u6570\u9ed8\u8ba4\u503c\u4e0e\u5176\u4ed6\u7684\u8bed\u8a00\u662f\u4e0d\u540c\u7684\uff0c\u76f4\u63a5\u8fdd\u53cd\u4e86\u6700\u76f4\u89c2\u7684\u5e38\u8bc6 -- \u9ed8\u8ba4\u53c2\u6570\u5e94\u8be5\u662f\u7701\u7565\u5c31\u6bcf\u6b21\u7528\u540c\u6837\u7684\u9ed8\u8ba4\u503c\uff0c\u4f20\u7684\u8bdd\u5c31\u7528\u4f20\u5165\u7684\u503c\u3002\n\u5f53\u6211\u5728 IntelliJ IDEA \u4e2d\u5199\u7c7b\u4f3c\u5982\u4e0b\u7684\u4ee3\u7801\n
      1<\/span>def<\/span> foo<\/span>(<\/span>a<\/span>,<\/span> b<\/span>=<\/span>[]):<\/span>\n<\/span><\/span>2<\/span> b<\/span>.<\/span>append<\/span>(<\/span>1<\/span>)<\/span>\n<\/span><\/span>3<\/span> return<\/span> b<\/span><\/span><\/span><\/code><\/pre><\/div>\n\n\u6211\u7684 SonarLint \u63d2\u4ef6\u5c31\u8981\u62b1\u6028\u4e86\n\n\n<\/a>\n\u8bf4\u662f\n
      \nSonarLint: Change this default value to \"None\" and initialize this parameter inside the function\/method
      \nDefault argument value is mutable\n<\/blockquote>"},{"title":"Flask \u5e94\u7528\u96c6\u6210 Swagger UI","link":"https:\/\/yanbin.blog\/flask-integrate-with-swagger-ui\/","pubDate":"Tue, 07 Dec 2021 19:46:45 -0600","author":"yabqiu@gmail.com (Yanbin Qiu)","guid":"https:\/\/yanbin.blog\/flask-integrate-with-swagger-ui\/","description":"\n\u6210\u719f\u7684 Web\u00a0 API \u6846\u67b6\u603b\u6709\u4e00\u6b3e API \u6587\u6863\u4e0e\u4e4b\u4f34\u968f\uff0c\u5f53\u524d\u6700\u77e5\u540d\u7684\u83ab\u8fc7\u4e8e\u652f\u6301 Open API \u7684 Swagger \u4e86\u3002Python \u7684 Flask \u6846\u67b6\u652f\u6301 Swagger UI \u4e5f\u6709\u51e0\u6761\u8def\u5b50\n
        \n
      1. Flasgger<\/a> : \u597d\u50cf\u662f flask-swagger \u7684 fork<\/li>\n
      2. flask-swagger<\/a>: \u8bb8\u4e45\u672a\u66f4\u65b0\u4e86\uff0c\u4e0d\u7528\u8003\u8651<\/li>\n
      3. flask-restful-swagger<\/a>: \u5230\u76ee\u524d\u4e5f\u4e24\u5e74\u672a\u66f4\u65b0\u4e86<\/li>\n
      4. Flask-RESTPlus \u7684 Swagger \u7279\u6027<\/a>: \u771f\u9700\u8981\u7528\u5230 Flask-RESTPlus\u00a0\u5c31\u53ef\u4ee5\u7528\u5b83<\/li>\n<\/ol>\n\n\u5355\u7eaf\u7528 Flask \u6784\u5efa API \u7684\u8bdd\uff0c\u7ec6\u6570\u8d77\u6765\u4e5f\u5c31 Flasgger \u6bd4\u8f83\u5408\u9002\uff0c\u5982\u679c\u7529\u5f00 Flask \u800c\u7528 FastAPI<\/a> \u7684\u8bdd\uff0c\u5c31\u4e0d\u7528\u64cd\u5fc3 Swagger \u4e86\uff0c\u56e0\u4e3a FastAPI \u539f\u751f\u7684\u652f\u6301 Swagger\u3002\n\u672c\u6587\u4e2d\u6211\u4eec\u5c06\u4f53\u9a8c\u5982\u4f55\u4f7f\u7528 Flasgger, \u5173\u4e8e\u4f7f\u7528\u65b9\u6cd5\uff0c\u5728\u5b83\u6e90\u7801\u7684 README.md<\/a> \u5df2\u7ecf\u63cf\u8ff0\u7684\u5f88\u6e05\u695a\u4e86\u3002Flasgger \u63d0\u4f9b\u4e86\u4ee5\u4e0b\u51e0\u79cd\u4e3b\u8981\u7684\u4f7f\u7528\u65b9\u5f0f"},{"title":"\u521b\u5efa\u548c\u53d1\u5e03\u81ea\u5df1\u7684 Python \u5305\u5230 PyPI \u4e0a","link":"https:\/\/yanbin.blog\/create-publish-your-own-pypi-python-package\/","pubDate":"Wed, 27 Oct 2021 16:58:20 -0500","author":"yabqiu@gmail.com (Yanbin Qiu)","guid":"https:\/\/yanbin.blog\/create-publish-your-own-pypi-python-package\/","description":"\n
        \u50cf Java \u53ef\u53d1\u5e03\u5305\u5230 Maven \u4ed3\u5e93\uff0cNodeJS \u53d1\u5e03\u5305\u5230 NPM \u4e00\u6837\uff0c\u6211\u4eec\u4e5f\u53ef\u4ee5\u521b\u5efa\u81ea\u5df1\u7684 Python \u5305\u5e76\u53d1\u5e03\u5230 PyPI<\/a> \u4ed3\u5e93\u4e2d\u53bb\u3002\u6216\u8005\u5185\u90e8\u4f7f\u7528\u7684\u5305\uff0c\u53ea\u987b\u53d1\u5e03\u5230\u79c1\u6709\u7684 Nexus \u670d\u52a1\u5668\u4e0a\u3002<\/p>\n
        \u672c\u6587\u4e2d\u7684\u4f8b\u5b50\u5c06\u521b\u5efa\u4e00\u4e2a Python \u5305 bounded-executor<\/code>, \u5e76\u53d1\u5e03\u5230 PyPI \u4e0a\u3002\u4e3a\u4ec0\u4e48\u521b\u5efa\u8fd9\u4e2a\u5305\u5462\uff1f\u539f\u56e0\u662f\u76f4\u63a5\u7528 Python \u7684 ThreadPoolExecutor \u6216\u00a0 ProcessPoolExecutor \u6765\u63d0\u4ea4\u4efb\u52a1\u7684\u8bdd\uff0c\u4efb\u52a1\u7684\u7b49\u5f85\u961f\u5217\u662f\u6ca1\u6709\u8fb9\u754c\u7684\uff0c\u8fd9\u5c31\u4f1a\u9020\u6210\u56e0\u63d0\u4ea4\u4efb\u52a1\u8fc7\u5feb\u800c\u4f7f\u5f97\u5185\u5b58\u7206\u6ee1\u3002\u672c\u5305\u6700\u4e3a\u5408\u9002\u7684\u540d\u79f0\u5e94\u8be5\u662f bounded-pool-executor<\/code>, \u53ef\u662f\u540d\u5b57\u5df2\u88ab\u4ed6\u4eba\u4f7f\u7528\uff0c\u4f46\u6b64\u5916\u7684\u5b9e\u73b0\u6709\u6240\u4e0d\u540c\uff0cThreadPoolExecutor \u7528 Queue(maxsize) \u6765\u63a7\u5236\uff0c\u800c ProcessPoolExceutor \u7528 BoundedSemaphore \u6765\u63a7\u5236\u3002<\/p>\n
        \u6211\u4eec\u4ee5\u7ecf\u5178\u7684 Python \u5de5\u7a0b\u76ee\u5f55\u7ed3\u6784\u4e3a\u4f8b\uff0c\u6784\u5efa\u7684\u6838\u5fc3\u662f\u6267\u884c setup.py<\/code> \u4e2d\u7684 setup<\/code> \u51fd\u6570\uff0c\u7531\u6b64\u6765\u7406\u89e3 setup<\/code> \u7684\u6700\u4e3b\u8981\u914d\u7f6e\u4e0e\u5173\u952e\u547d\u4ee4\u505a\u4e86\u4e9b\u4ec0\u4e48\u3002\u8fd9\u6837\u6709\u52a9\u4e8e\u6211\u4eec\u7406\u89e3\u5176\u4ed6\u7684 Python \u5305\u7ba1\u7406\u5de5\u5177\u7684\u5e95\u5c42\u884c\u4e3a\uff0c\u4ece\u4e2d\u6211\u4eec\u53ef\u4ee5\u5bf9\u6bd4 poetry \u7684 build, install, \u548c publish \u547d\u4ee4\u3002"},{"title":"\u521b\u5efa Python \u7684 list, set, tuple \u548c dict","link":"https:\/\/yanbin.blog\/create-python-list-set-dict\/","pubDate":"Wed, 17 Jun 2020 00:16:13 -0500","author":"yabqiu@gmail.com (Yanbin Qiu)","guid":"https:\/\/yanbin.blog\/create-python-list-set-dict\/","description":"\n\u672c\u6587\u4e3b\u8981\u63a2\u8ba8\u4e00\u4e0b\u5728 Python \u5404\u79cd\u521b\u5efa list, set, tuple \u548c dictionary \u7684\u65b9\u5f0f\u3002\u9996\u5148\u770b\n
        \u6700\u5e38\u7528\u7684\u521b\u5efa\u65b9\u5f0f<\/h3>\n
        1<\/span>alist<\/span> =<\/span> [<\/span>1<\/span>,<\/span> 2<\/span>]<\/span> # type(alist) <class 'list'><\/span>\n<\/span><\/span>2<\/span>aset<\/span> =<\/span> {<\/span>1<\/span>,<\/span> 2<\/span>}<\/span> # type(aset) <class 'set'><\/span>\n<\/span><\/span>3<\/span>atuple<\/span> =<\/span> (<\/span>1<\/span>,<\/span> 2<\/span>)<\/span> # type(atuple) <class 'tuple'><\/span>\n<\/span><\/span>4<\/span>adict<\/span> =<\/span> {<\/span>'k1'<\/span>:<\/span> 1<\/span>,<\/span> 'k2'<\/span>:<\/span> 2<\/span>}<\/span> # type(adict) <class 'dict'><\/span><\/span><\/span><\/code><\/pre><\/div>\n\n\u4ee5\u4e0a\u76f8\u5f53\u4e8e\u662f\u9488\u5bf9\u53f3\u8fb9\u7684\u503c\u8c03\u7528\u4e86\u76f8\u5e94\u7684\u6784\u9020\u51fd\u6570\uff0c\u5982 list([1, 2]), set({1, 2}), tupe((1, 2)), dict({'k1': 1, 'k2': 2})\n\u521b\u5efa set \u548c dictionary \u90fd\u662f\u7528\u5927\u62ec\u53f7 {}<\/code>, \u5bf9\u4e8e tuple \u5982\u679c\u662f\u5355\u4e2a\u5143\u7d20\u65f6\uff0c\u8981\u9644\u52a0\u4e00\u4e2a\u9017\u53f7\n
        1<\/span>atuple<\/span> =<\/span> (<\/span>1<\/span>,)<\/span><\/span><\/span><\/code><\/pre><\/div>\n\n\u5982\u679c\u7701\u7565\u9017\u53f7\uff0c\u4f1a\u600e\u6837\u5462\uff1f"},{"title":"\u5e0c\u5c14(Shell) \u6392\u5e8f - \u589e\u5f3a\u7248\u63d2\u5165\u6392\u5e8f\u7b97\u6cd5","link":"https:\/\/yanbin.blog\/shell-sort-enhanced-insertion-sort\/","pubDate":"Mon, 04 May 2020 03:27:29 -0500","author":"yabqiu@gmail.com (Yanbin Qiu)","guid":"https:\/\/yanbin.blog\/shell-sort-enhanced-insertion-sort\/","description":"\n
        \u524d\u9762\u8bb2\u8fc7\u7684\u51e0\u79cd\u6392\u5e8f\u591a\u662f\u4ee5\u6392\u5e8f\u903b\u8f91\u6765\u547d\u540d\u7684\uff0c\u4f8b\u5982\u5192\u6ce1\uff0c\u9009\u62e9\u548c\u63d2\u5165\u6392\u5e8f\uff0c\u4ee5\u53ca\u5176\u4ed6\u5982\u5f52\u5e76\u6392\u5e8f\uff0c\u5f53\u7136\u8fd8\u6709\u89c9\u5f97\u81ea\u5df1\u8db3\u591f\u725b X \u5feb\u901f\u6392\u5e8f\u547d\u540d\u3002\u800c\u672c\u6587\u8981\u5b66\u4e60\u7684\u6392\u5e8f\u7b97\u6cd5\u53eb\u505a\u5e0c\u5c14\u6392\u5e8f\u662f\u4ee5\u5176\u8bbe\u8ba1\u8005 Donlad Shell \u547d\u4ee4\u7684\u6392\u5e8f\u7b97\u6cd5\uff0c\u8be5\u7b97\u6cd5\u5728 1959 \u5e74\u516c\u5e03\uff0c\u80fd\u4ee5\u4f5c\u8005\u6765\u547d\u540d\u7684\u7b97\u6cd5\u5e94\u8be5\u662f\u5f88\u4e0d\u9519\u7684\uff0c\u4ee4\u8bbe\u8ba1\u8005\u5f15\u4ee5\u4e3a\u50b2\u7684\u3002\u6700\u521d\u5199\u51fa\u5192\u6ce1\u548c\u9009\u62e9\u6392\u5e8f\u7684\u5c31\u6ca1\u4ee5\u4f5c\u8005\u6765\u547d\u540d\uff0c\u53ef\u80fd\u4e0d\u597d\u610f\u8bf4\uff0c\u66f4\u53ef\u80fd\u662f\u516c\u5171\u601d\u7ef4\u3002<\/p>\n
        \u90a3\u4e48\u4ec0\u4e48\u662f\u5e0c\u5c14\u6392\u5e8f\u5462\uff1f\u5b83\u5b9e\u9645\u4e0a\u662f\u63d2\u5165\u6392\u5e8f\u7b97\u6cd5\u7684\u589e\u5f3a\u7248\u672c\uff0c\u53c8\u79f0\u9012\u51cf\u589e\u91cf\u6392\u5e8f\u7b97\u6cd5\u3002\u5b83\u5bf9\u5f85\u6392\u5e8f\u5217\u8868\u8fdb\u884c\u95f4\u9694\u5f0f\u5206\u6bb5\u63d2\u5165\u5904\u7406\uff0c\u4ece\u800c\u603b\u4f53\u4e0a\u51cf\u5c11\u4e86\u5143\u7d20\u7684\u79fb\u52a8\u6b21\u6570\u800c\u8fbe\u5230\u6027\u80fd\u7684\u5927\u5927\u63d0\u5347\u3002\u90a3\u4e48\u7406\u89e3\u5e0c\u5c14\u6392\u5e8f\u4e4b\u524d\u4e00\u5b9a\u8981\u5148\u4e86\u89e3\u63d2\u5165\u6392\u5e8f\u3002\u90a3\u4e48\u4e3a\u4ec0\u4e48\u8bf4\u5e0c\u5c14\u6392\u5e8f\u65e2\u662f\u9012\u51cf\u53c8\u662f\u589e\u91cf\u5462\uff1f"},{"title":"\u63d2\u5165\u6392\u5e8f\u7b97\u6cd5\u89e3\u6790","link":"https:\/\/yanbin.blog\/insertion-sort-how-to\/","pubDate":"Mon, 27 Apr 2020 02:46:27 -0500","author":"yabqiu@gmail.com (Yanbin Qiu)","guid":"https:\/\/yanbin.blog\/insertion-sort-how-to\/","description":"\n\u524d\u9762\u8bf4\u8fc7\u6700\u539f\u59cb\u7684\u590d\u6742\u5ea6\u4e3a O(n2<\/sup>) \u7684\u5192\u6ce1\u548c\u9009\u62e9\u6392\u5e8f\uff0c\u4e5f\u8df3\u8dc3\u5230\u4e86\u590d\u6742\u5ea6\u4e3a\u00a0 O(n log n) \u7684\u5feb\u901f\u6392\u5e8f\uff0c\u73b0\u5728\u53c8\u518d\u770b\u4e00\u4e2a\u590d\u6742\u5ea6\u540c\u6837\u4e3a O(n2<\/sup>) \u7684\u63d2\u5165\u6392\u5e8f\u3002\u4ece\u6392\u5e8f\u540d\u79f0\u7ed3\u5408\u4ee3\u7801\u6211\u4eec\u7406\u89e3\u4e86\u4e3a\u4ec0\u4e48\u53eb\u505a\u5192\u6ce1\u6216\u662f\u9009\u62e9\uff0c\u5feb\u901f\u6392\u5e8f\u81ea\u8ba4\u9ad8\u540d\uff0c\u90a3\u4e48\u4f55\u4ee5\u8fd9\u53c8\u8c13\u4e4b\u63d2\u5165\u6392\u5e8f\u5462\uff1f\u662f\u600e\u4e48\u63d2\u5165\uff0c\u4ece\u5de6\u8fb9\u5f80\u53f3\u8fb9\u63d2\uff0c\u8fd8\u662f\u4ece\u53f3\u8fb9\u5f80\u5de6\u8fb9\u63d2\uff0c\u8fd9\u5f97\u641e\u6e05\u5b83\u7684\u6392\u5e8f\u539f\u7406\uff1a<\/p>\n\n\u5b83\u5728\u5217\u8868\u8f83\u4f4e\u7684\u4e00\u7aef\u7ef4\u62a4\u4e00\u4e2a\u6709\u5e8f\u7684\u5b50\u5217\u8868(\u4ece\u6700\u5de6\u7aef\u4e00\u4e2a\u5143\u7d20\u5f00\u59cb)\uff0c\u5e76\u9010\u4e2a\u5c06\u6bcf\u4e2a\u65b0\u5143\u7d20(\u9ad8\u7aef\u7684)\"\u63d2\u5165\"\u8fd9\u4e2a\u5b50\u5217\u8868\u3002\u63d2\u5165\u7684\u65f6\u5019\u904d\u5386\u4f4e\u7aef\u5217\u8868\uff0c\u627e\u51c6\u4f4d\u7f6e\u63d2\u5165\u4fbf\u662f\uff0c\u63d2\u5165\u70b9\u540e\u7684\u5143\u7d20\u9700\u540e\u79fb\uff0c\u5f53\u6240\u6709\u9ad8\u7aef\u7684\u5143\u7d20\u63d2\u5165\u5b8c\u6210\u4e86\uff0c\u6574\u4e2a\u5217\u8868\u5c31\u53d8\u5f97\u6709\u5e8f\u4e86\u3002\n\u6574\u4e2a\u6392\u5e8f\u64cd\u4f5c\u793a\u610f\u56fe\u5982\u4e0b\uff1a"},{"title":"\u7406\u89e3 Python \u7c7b\u7684\u53d8\u91cf,\u65b9\u6cd5\u4e0e\u5c5e\u6027","link":"https:\/\/yanbin.blog\/understand-python-class-definition\/","pubDate":"Mon, 20 Apr 2020 23:43:20 -0500","author":"yabqiu@gmail.com (Yanbin Qiu)","guid":"https:\/\/yanbin.blog\/understand-python-class-definition\/","description":"\n\u719f\u6089\u4e86\u4f20\u7edf\u7684 C++\/Java\u00a0\u7c7b\u5b9a\u4e49\u7684\u98ce\u683c\uff0c\u6765\u611f\u53d7\u4e00\u4e0b Python\u00a0\u662f\u5982\u4f55\u5b9a\u4e49\u7c7b\u7684\u3002\u672c\u7bc7\u662f\u9605\u8bfb \u300aThe Quick Python Book\u300b\u7b2c\u4e8c\u7248\u5173\u4e8e\u7c7b\u5b9a\u4e49\u7684\u7b14\u8bb0\uff0c\u7531\u539f\u4e66\u5185\u5bb9\u8fdb\u4e00\u6b65\u5f15\u7533\uff0c\u4e0d\u8fc7\u662f\u4f9d\u7167\u672c\u4eba\u7684\u601d\u8003\u987a\u5e8f\u6765\u7ec4\u7ec7\u7684\u3002\u5728\u7406\u89e3\u00a0Python\u00a0\u7c7b\u5b9a\u4e49\u7684\u540c\u65f6\u5934\u8111\u4e2d\u5e94\u8be5\u95ea\u73b0\u51fa\u00a0JavaScript\/Java\u00a0\u5982\u4f55\u5b9a\u4e49\u7c7b\u7684\u60c5\u666f\u3002<\/p>\n\n
        \u6700\u7b80\u5355\u7684\u7c7b\u5b9a\u4e49<\/h3>\n
        \nclass MyClass:
        \n\u00a0 \u00a0 pass\n<\/blockquote>\n\u7531\u4e8e class MyClass<\/code>\u00a0\u540e\u9762\u8981\u6709\u4e2a\u5192\u53f7\uff0c\u800c\u5192\u53f7\u540e\u603b\u5f97\u6709\u70b9\u4e1c\u897f\u624d\u80fd\u8868\u793a\u8be5\u7c7b\u5b9a\u4e49\u7ed3\u675f\u4e86\uff0c\u4e8e\u662f\u653e\u4e2a pass<\/code>\u00a0\u5f53\u5360\u4f4d\u7b26\u3002Python\u00a0\u4e5f\u50cf Java\u00a0\u4e00\u6837\uff0c\u6709\u4e00\u4e2a\u6839\u7c7b\uff0c\u53eb\u505a object\uff0c\u4f8b\u5982\u4e0a\u9762\u7684\u5b9a\u4e49\n
        1<\/span>>>><\/span> MyClass<\/span>.<\/span>__bases__<\/span>\n<\/span><\/span>2<\/span>(<\/span><<\/span>class<\/span> '<\/span>object<\/span>'>,)<\/span>\n<\/span><\/span>3<\/span>>>><\/span> import<\/span> inspect<\/span>\n<\/span><\/span>4<\/span>>>><\/span> inspect<\/span>.<\/span>getmro<\/span>(<\/span>MyClass<\/span>)<\/span>\n<\/span><\/span>5<\/span>(<\/span><<\/span>class<\/span> '<\/span>__main__<\/span>.<\/span>MyClass<\/span>'>, <class '<\/span>object<\/span>'>)<\/span><\/span><\/span><\/code><\/pre><\/div>\n\n\u6211\u4eec\u80fd\u770b\u5230\u5b83\u9690\u5f0f\u7684\u57fa\u7c7b\u662f object<\/code>,\u00a0\u800c\u4e0d\u7528\u663e\u5f0f\u7684\u58f0\u660e\u4e3a class MyClass(object)<\/code>\u3002\u770b\u5230 __bases__<\/code>\u00a0\u5c5e\u6027\u662f\u4e00\u4e2a Tuple,\u00a0\u610f\u8bc6\u5230\u00a0 Python\u00a0\u662f\u652f\u6301\u591a\u91cd\u7ee7\u627f\u7684\u3002"},{"title":"Python \u51fd\u6570\u58f0\u660e\u5148\u540e\u987a\u5e8f\u7684\u95ee\u9898","link":"https:\/\/yanbin.blog\/python-function-declaration-order\/","pubDate":"Sat, 20 Jul 2019 23:25:04 -0500","author":"yabqiu@gmail.com (Yanbin Qiu)","guid":"https:\/\/yanbin.blog\/python-function-declaration-order\/","description":"\n
        \u5728 Python \u4e2d\u5982\u679c\u628a\u51fd\u6570\u5b9a\u4e49\u5199\u5728\u8c03\u7528\u7684\u4e0b\u65b9\u53ef\u80fd\u4f1a\u51fa\u9519\uff0c\u4f8b\u5982\u4e0b\u9762\u7684\u4ee3\u7801<\/p>\n
        1<\/span>foo<\/span>()<\/span>\n<\/span><\/span>2<\/span>\n<\/span><\/span>3<\/span>def<\/span> foo<\/span>():<\/span>\n<\/span><\/span>4<\/span> print<\/span>(<\/span>"hello"<\/span>)<\/span><\/span><\/span><\/code><\/pre><\/div>\n
        \u6267\u884c\u65f6\u4f1a\u62a5\u51fa\u9519\u8bef<\/p>\n
        \nNameError: name 'foo' is not defined\n<\/blockquote>\n
        \u8fd9\u65f6\u5019\u8981\u628a foo()<\/code> \u8c03\u7528\u4ee3\u7801\u653e\u5230\u8be5\u51fd\u6570\u7684\u58f0\u660e\u540e\u9762<\/p>\n
        1<\/span>def<\/span> foo<\/span>():<\/span>\n<\/span><\/span>2<\/span> print<\/span>(<\/span>"hello"<\/span>)<\/span>\n<\/span><\/span>3<\/span>\n<\/span><\/span>4<\/span>foo<\/span>()<\/span><\/span><\/span><\/code><\/pre><\/div>\n
        \u8fd9\u6837\u6267\u884c\u5c31\u4e00\u5207\u6b63\u5e38\u4e86\u3002\u8fd9\u4eff\u4f5b\u50cf\u662f C \u8bed\u8a00\u4e2d\u7684\u51fd\u6570\u8c03\u7528\u9700\u8981\u63d0\u524d\u58f0\u660e\u4e00\u822c\uff0c\u4f8b\u5982\u5728 C\u00a0\u8bed\u8a00\u4e2d\u8981\u8c03\u7528\u540e\u5934\u7684\u5b9a\u4e49\u7684\u51fd\u6570\u8981\u5199\u6210"},{"title":"\u5f00\u542f Python \u7ec4\u4ef6 Boto3 \u5728 IDE \u4e2d\u7684\u667a\u80fd\u63d0\u793a","link":"https:\/\/yanbin.blog\/aws-boto3-python-ide-autocomplete\/","pubDate":"Sat, 13 Jul 2019 13:44:02 -0500","author":"yabqiu@gmail.com (Yanbin Qiu)","guid":"https:\/\/yanbin.blog\/aws-boto3-python-ide-autocomplete\/","description":"\n
        \u5728\u7528 Python \u7f16\u5199 AWS \u670d\u52a1\u65f6\uff0c\u8981\u7528\u5230 Boto 3 \u7ec4\u4ef6\uff0c\u800c\u50cf boto3.client('s3') \u83b7\u5f97\u7684\u5bf9\u8c61\u53ea\u80fd\u88ab IDE \u8bc6\u522b\u4e3a\u4e00\u4e2a BaseClient, \u5177\u4f53\u5305\u542b\u4ec0\u4e48\u64cd\u4f5c\u65b9\u6cd5\u662f\u5728\u8fd0\u884c\u65f6\u7531\u53c2\u6570 s3<\/code> \u6307\u793a\u7684\u57fa\u4e8e JSON \u6587\u4ef6\u6240\u63cf\u8ff0\u7684\u3002\u56e0\u6b64 IDE \u5bf9 s3 = boto3.client('s3')<\/code> \u7684 s3<\/code> \u5bf9\u8c61\u65e0\u6cd5\u63d0\u4f9b\u6709\u6548\u7684\u667a\u80fd\u63d0\u793a\uff0c\u6bcf\u6b21\u7528 Boto 3 \u65f6\u4e0d\u5f97\u4e0d\u6253\u5f00 Boto 3 \u7684\u5728\u7ebf API \u6587\u6863\u6765\u5bf9\u7167\u3002\u957f\u6b64\u4ee5\u5f80\uff0c\u603b\u89c9\u9ebb\u70e6\u4e14\u6548\u7387\u4f4e\u4e0b\uff0c\u6709\u79cd\u4e00\u76f4\u6478\u7740\u77f3\u5934\u8fc7\u6cb3\u7684\u611f\u89c9\u3002\u90a3\u4e48\uff0c\u662f\u5426\u6709\u529e\u6cd5\u8ba9 IDE \u667a\u80fd\u63d0\u793a\u51fa\u5404\u79cd boto3.client('<service>') \u7684\u5b9e\u9645\u64cd\u4f5c\u5462\uff1f\u7f51\u4e0a\u627e\u4e86\u627e\uff0c\u786e\u5b9e\u6709\u8fd9\u4e2a\u9700\u6c42\uff0c\u89e3\u51b3\u529e\u6cd5\u6709<\/p>\n
          \n
        1. botostubs<\/a>: \u4e0e boto3 API \u4fdd\u6301\u66f4\u65b0(\u6bcf\u4e09\u5929)\uff0c\u5e76\u652f\u6301\u4f17\u591a IDE, \u8bd5\u8fc7\u5728 IntelliJ IDEA \u548c Visual Studio Code \u4e2d\u53ef\u7528<\/li>\n
        2. pyboto3<\/a>: \u4e0a\u6b21\u66f4\u65b0\u5728\u4e24\u5e74\u524d, https:\/\/github.com\/wavycloud\/pyboto3<\/a>, \u53ea\u5728 Python 2.7\u00a0\u4e0b\u6d4b\u8bd5\u8fc7<\/li>\n
        3. autoboto<\/a>: \u9700\u6709\u667a\u80fd\u63d0\u793a\uff0c\u4f46\u6539\u53d8\u4e86\u5e94\u7528 Boto 3 \u7ec4\u4ef6\u7684\u65b9\u5f0f\uff0c\u4e0d\u5efa\u8bae\u4f7f\u7528<\/li>\n<\/ol>\n
          \u672c\u6587\u91cd\u70b9\u63a8\u8350 botostubs, \u4e0b\u9762\u4f1a\u53d9\u8bf4\u5177\u4f53\u7406\u7531\uff0c\u5728\u8fdb\u5165\u6b63\u662f\u4e4b\u524d\uff0c\u4e0d\u59a8\u6765\u56de\u987e\u4e00\u4e0b\u76f4\u63a5\u4f7f\u7528 Boto 3\u00a0\u65f6\u6ca1\u6709\u597d\u7684\u667a\u80fd\u63d0\u793a\u7684\u95ee\u9898"},{"title":"\u8ba9 Python \u7684\u6570\u636e\u5e93\u67e5\u8be2\u8fd4\u56de\u5b57\u5178\u8bb0\u5f55","link":"https:\/\/yanbin.blog\/python-database-query-return-dictionary-result\/","pubDate":"Sun, 16 Dec 2018 12:30:08 -0600","author":"yabqiu@gmail.com (Yanbin Qiu)","guid":"https:\/\/yanbin.blog\/python-database-query-return-dictionary-result\/","description":"\n\u5728\u4f7f\u7528\u00a0 Python \u8fdb\u884c\u6570\u636e\u5e93\u67e5\u8be2\uff0c\u901a\u5e38\u60c5\u51b5\u4e0b cursor<\/code>\u00a0\u7684\u00a0fetchall<\/code>, fetchmany<\/code>\u00a0\u8fd4\u56de\u7684\u662f\u5143\u7ec4(Tuple) \u7684\u5217\u8868\uff0c\u6240\u4ee5\u5bf9\u67e5\u8be2\u5230\u7684\u7ed3\u679c\u53ea\u80fd\u7528\u7d22\u5f15\u4e0b\u6807\u6765\u8bbf\u95ee\uff0c\u800c\u65e0\u6cd5\u901a\u8fc7\u5b57\u6bb5\u540d\u6765\u83b7\u53d6\u503c\u3002\u5bf9 Java JDBC \u7684 ResultSet \u64cd\u4f5c\uff0c\u6211\u4eec\u6709\u4e24\u79cd\u83b7\u53d6\u503c\u7684\u65b9\u5f0f\uff0cresultSet.getString(1) \u548c resultSet.getString('name')\u3002\n\u5176\u5b9e\u53ea\u8981\u80fd\u7528\u6570\u5b57\u7d22\u5f15\u8bbf\u95ee\u5230\u5b57\u6bb5\u503c\u4e5f\u5c31\u8db3\u591f\u4e86\uff0c\u67e5\u8be2\u540e\u5b57\u6bb5\u540d\u53ef\u4ee5\u7531 cursor.description<\/code>\u00a0\u83b7\u5f97\u3002\u901a\u8fc7\u5b57\u6bb5\u540d\u6765\u8bbf\u95ee\u503c\u552f\u4e00\u7684\u597d\u5904\u4f30\u8ba1\u662f\u51fa\u9519\u7684\u6982\u7387\u5c0f\u4e9b\u7f62\u4e86\uff0c\u6bd4\u5982 result['firstname'], result['lastname'] \u603b\u662f\u6bd4 result[1], result[2] \u66f4\u4e0d\u5bb9\u6613\u641e\u6df7\uff0c\u9519\u8bef\u5b9a\u4f4d\u4e5f\u4f1a\u66f4\u8f7b\u677e\u3002\n\u5047\u5982\u6709\u4e0b\u9762\u7684\u6570\u636e\u5e93\u8868\u4e0e\u4e24\u6761\u8bb0\u5f55"},{"title":"Python \u7248\u7684 try-with-resources -- with \u4e0a\u4e0b\u6587\u7ba1\u7406\u5668","link":"https:\/\/yanbin.blog\/python-try-with-resources-with-context-manager\/","pubDate":"Tue, 04 Dec 2018 00:42:36 -0600","author":"yabqiu@gmail.com (Yanbin Qiu)","guid":"https:\/\/yanbin.blog\/python-try-with-resources-with-context-manager\/","description":"\n
          \u4f5c\u4e3a\u4e00\u4e2a\u00a0 Java \u4e3a\u6bcd\u8bed\u7684\u7a0b\u5e8f\u5458\u6765\u8bb2\uff0c\u5b66\u4e60\u8d77\u5176\u4ed6\u65b0\u7684\u8bed\u8a00\u5c31\u96be\u514d\u4efb\u4f55\u4e8b\u90fd\u4e0e Java \u8fdb\u884c\u6a2a\u5411\u5bf9\u6bd4\u3002Java 7 \u5f15\u5165\u4e86\u80fd\u7701\u53bb\u8bb8\u591a\u91cd\u590d\u4ee3\u7801\u7684 try-with-resources<\/code> \u7279\u6027\uff0c\u4e0d\u7528\u6bcf\u56de try\/finally \u6765\u91ca\u653e\u8d44\u6e90(\u4e0d\u4fbf\u4e4b\u5904\u6709\u5c40\u90e8\u53d8\u91cf\u5fc5\u987b\u58f0\u660e\u5728\u00a0 try \u4e4b\u524d\uff0cfinally \u91cc\u8fd8\u8981\u5d4c\u5957 try\/catch \u6765\u5904\u7406\u5f02\u5e38)\u3002\u6bd4\u5982\u4e0b\u9762\u7684\u00a0 Java \u4ee3\u7801<\/p>\n
          1<\/span>try<\/span>(<\/span>InputStream<\/span> <\/span>inputStream<\/span> <\/span>=<\/span> <\/span>new<\/span> <\/span>FileInputStream<\/span>(<\/span>"abc.txt"<\/span>))<\/span> <\/span>{<\/span>\n<\/span><\/span><\/span>2<\/span> <\/span>System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>inputStream<\/span>.<\/span>read<\/span>());<\/span>\n<\/span><\/span><\/span>3<\/span>}<\/span> <\/span>catch<\/span> <\/span>(<\/span>Exception<\/span> <\/span>ex<\/span>)<\/span> <\/span>{<\/span>\n<\/span><\/span><\/span>4<\/span>}<\/span><\/span><\/span><\/code><\/pre><\/div>\n
          \u5b83\u76f8\u5e94\u7684\u4e0d\u4f7f\u7528 try-with-resources \u8bed\u6cd5\u7684\u4ee3\u7801\u5c31\u662f"},{"title":"\u7528 .pth \u6587\u4ef6\u9644\u52a0 Python \u6a21\u5757\u641c\u7d22\u8def\u5f84","link":"https:\/\/yanbin.blog\/pth-file-append-python-module-search-path\/","pubDate":"Thu, 22 Nov 2018 16:57:10 -0600","author":"yabqiu@gmail.com (Yanbin Qiu)","guid":"https:\/\/yanbin.blog\/pth-file-append-python-module-search-path\/","description":"\n
          .pth<\/code>\u00a0\u6587\u4ef6\u540d\u662f\u4ec0\u4e48\uff0c\u65e0\u6240\u8c13\uff0cPython \u53ea\u8ba4\u6269\u5c55\u540d\u3002.pth<\/code>\u00a0\u6587\u4ef6\u4e2d\u6bcf\u884c\u6307\u5b9a\u4e00\u4e2a\u8def\u5f84 -- \u7edd\u5bf9\u6216\u76f8\u5bf9\u8def\u5f84(\u76f8\u5bf9\u4e8e\u672c\u00a0 .pth<\/code>\u00a0\u6587\u4ef6\u6240\u5728\u7684\u76ee\u5f55)\uff0c\u53e6\u5916\u8fd8\u53ef\u4ee5\u7a7a\u884c\u6216 #<\/code>\u00a0\u5f00\u59cb\u7684\u6ce8\u91ca\u884c\uff0c\u8fd8\u80fd\u6709 import<\/code>\u00a0\u8bed\u53e5\uff0c\u5927\u6982\u53ea\u7528\u6765\u6821\u9a8c\u662f\u5426\u80fd\u5bfc\u5165\u6210\u529f\uff0c\u7a0b\u5e8f\u4ee3\u7801\u4e2d\u8fd8\u662f\u9700\u8981\u663e\u793a\u7684 import \u6a21\u5757\u3002<\/p>\n
          .pth<\/code>\u00a0\u6587\u4ef6\u653e\u5728\u54ea\u91cc<\/h3>\n
          .pth<\/code>\u00a0\u6587\u4ef6\u521b\u5efa\u597d\u540e\u5e94\u8be5\u653e\u5230\u54ea\u91cc\u53bb\u5462\uff1f\u4e0d\u662f sys.prefix<\/code>\u00a0\u6307\u793a\u7684\u4f4d\u7f6e\uff0c\u4e5f\u4e0d\u662f sys.path<\/code>\u00a0\u4e2d\u4efb\u610f\u4e00\u4e2a\u76ee\u5f55\uff0c\u800c\u662f\u00a0 sys.path<\/code>\u00a0\u4e2d\u5c5e\u4e8e site.packages \u7684\u67d0\u4e00\u4e2a\u76ee\u5f55\u4e2d\u3002\u53ef\u4ee5\u7528<\/p>\n
          1<\/span>>>><\/span> import<\/span> site<\/span>\n<\/span><\/span>2<\/span>>>><\/span> site<\/span>.<\/span>getusersitepackages<\/span>()<\/span>\n<\/span><\/span>3<\/span>>>><\/span> site<\/span>.<\/span>getsitepackages<\/span>()<\/span><\/span><\/span><\/code><\/pre><\/div>\n
          \u67e5\u770b\u5230, \u770b\u6211\u5728\u00a0 Ubuntu Linux \u4e2d\u770b\u5230\u7684\u5185\u5bb9(\u4e3a\u4fbf\u4e8e\u9605\u8bfb\uff0c\u663e\u793a\u5217\u8868\u5185\u5bb9\u65f6\u8fdb\u884c\u4e86\u6362\u884c\u5904\u7406)"},{"title":"Python \u7684\u6a21\u5757\u641c\u7d22\u8def\u5f84","link":"https:\/\/yanbin.blog\/python-module-search-path\/","pubDate":"Thu, 22 Nov 2018 03:09:06 -0600","author":"yabqiu@gmail.com (Yanbin Qiu)","guid":"https:\/\/yanbin.blog\/python-module-search-path\/","description":"\n
          \u4e00\u79cd\u8bed\u8a00\u8981\u4f7f\u7528\u5230\u5916\u90e8\u5e93(\u6a21\u5757) \u65f6\u5fc5\u7136\u4f1a\u6d89\u53ca\u5230\u4ece\u54ea\u91cc\u4ee5\u53ca\u6309\u4f55\u987a\u5e8f\u52a0\u8f7d\u4f9d\u8d56\uff0c\u5c31\u50cf\u00a0LD_LIBRARY_PATH, CLASSPATH \u90a3\u6837\uff0cPython \u4e5f\u6709\u5176\u9ed8\u8ba4\u7684\u6a21\u5757\u641c\u7d22\u987a\u5e8f, \u4f9d\u5e8f\u627e\u5230\u60f3\u8981\u7684\u6a21\u5757\u5373\u505c\u6b62\u3002Python \u4e2d sys.path<\/code>\u00a0\u8fd4\u56de\u7684\u5217\u8868\u5305\u542b\u4e86\u6a21\u5757\u641c\u7d22\u7684\u987a\u5e8f\uff0c\u6211\u4eec\u53ef\u4ee5\u7a0b\u5e8f\u4e2d\u4fee\u6539\u8be5\u5217\u8868\uff0c\u6216\u7528 PYTHONPATH<\/code>\u00a0\u73af\u5883\u53d8\u91cf\u524d\u63d2\u8def\u5f84\uff0c\u751a\u81f3\u662f\u7528\u00a0 .pth<\/code>\u00a0\u6587\u4ef6\u6765\u9644\u52a0\u8def\u5f84\u3002<\/p>\n
          \u7b80\u5355\u7684\uff0c\u53ef\u4ee5\u6267\u884c\u547d\u4ee4 python3 -c \"import sys; print(str(sys.path).replace(',', '\\n'))\"<\/code>\u00a0\u6765\u67e5\u770b python3 \u4ea4\u4e92 shell \u4e0b\u7684\u6a21\u5757\u641c\u7d22\u8def\u5f84\uff0c\u7c7b\u4f3c\u7ed3\u679c\u5982\u4e0b\uff1a<\/p>\n
          \n[''
          \n'\/usr\/lib\/python36.zip'
          \n'\/usr\/lib\/python3.6'
          \n'\/usr\/lib\/python3.6\/lib-dynload'
          \n'\/home\/yanbin\/.local\/lib\/python3.6\/site-packages'
          \n'\/usr\/local\/lib\/python3.6\/dist-packages'
          \n'\/usr\/lib\/python3\/dist-packages'
          \n'\/usr\/lib\/python3.6\/dist-packages']\n<\/blockquote>\n
          \u6ce8\u610f\uff0c\u7b2c\u4e00\u4e2a\u5143\u7d20\u662f\u4e2a\u7a7a\u5b57\u7b26\u4e32\uff0c\u4ee3\u8868\u8fdb\u5165 python3 shell \u65f6\u7684\u5f53\u524d\u76ee\u5f55\u3002<\/p>\n
          \u5982\u679c\u5728\u901a\u8fc7\u4e00\u4e2a py \u811a\u672c\u6587\u4ef6\u6765\u6253\u5370 sys.path<\/code>\u00a0\u7684\u8bdd\u663e\u793a\u7a0d\u5fae\u6709\u6240\u5dee\u5f02\u3002\u6bd4\u5982\u5728\u76ee\u5f55 \/home\/yanbin\/Developers\/<\/code>\u00a0\u4e0b\u521b\u5efa test.py<\/code>\u00a0\u6587\u4ef6\uff0c\u5185\u5bb9\u4e3a"},{"title":"Python \u7684 __str__ \u548c __repr__ \u65b9\u6cd5\u6bd4\u8f83","link":"https:\/\/yanbin.blog\/python-__str__vs__repr__methods\/","pubDate":"Mon, 12 Nov 2018 01:47:41 -0600","author":"yabqiu@gmail.com (Yanbin Qiu)","guid":"https:\/\/yanbin.blog\/python-__str__vs__repr__methods\/","description":"\n
          \u9605\u8bfb\u5230 Strings \u4e2d\u5173\u4e8e\u8f6c\u6362\u5bf9\u8c61\u4e3a\u5b57\u7b26\u4e32\u7684\u5185\u5bb9\uff0c\u4ecb\u7ecd\u4e86 repr<\/code> \u51fd\u6570\uff0c\u8d81\u7740\u8fd8\u6ca1\u6709\u771f\u6b63\u4e86\u89e3 Python \u9762\u5411\u5bf9\u8c61\u7684\u751f\u758f\u4e0e\u70ed\u5ea6\uff0c\u611f\u6027\u4e0a\u7406\u89e3\u4e00\u4e0b repr<\/code> \u4e0e str<\/code> \u8fd9\u4e24\u4e2a\u51fd\u6570\u7684\u533a\u522b\u3002<\/p>\n
          Python \u7684\u5168\u5c40\u65b9\u6cd5 repr<\/code> \u548c str<\/code> \u4f1a\u6620\u5c04\u5230\u5bf9\u8c61\u7684 __repr__<\/code> \u548c __str__<\/code> \u7684\u65b9\u6cd5\u8c03\u7528\uff0c\u8fd8\u6709 str(obj)<\/code> \u65f6\u4f1a\u8c03\u7528\u54ea\u4e2a\u65b9\u6cd5\uff0c\u4ee5\u53ca print(obj)<\/code> \u548c\u8c03\u8bd5 Python \u4ee3\u7801\u65f6\u7684\u5bf9\u8c61\u663e\u793a\u4f1a\u8c03\u7528\u54ea\u4e2a\u65b9\u6cd5\u5462\uff1f\u8fd9\u5c31\u662f\u672c\u6587\u60f3\u8981\u5370\u8bc1\u7684\u5185\u5bb9\u3002<\/p>\n
          \u6070\u5982 Java \u7684 System.out.println(obj)<\/code> \u6216 \"hello\" + obj<\/code> \u90fd\u4f1a\u8c03\u7528 Java \u5bf9\u8c61\u7684 toString()<\/code> \u65b9\u6cd5\uff0c\u90a3\u4e48 Python \u4e2d\u662f\u600e\u4e48\u4e00\u56de\u4e8b\u5462\uff1f<\/p>\n
          \u6765\u81ea\u67d0\u672c Python \u5165\u95e8\u4e66\u7684\u89e3\u91ca repr<\/code> \u548c str<\/code>:<\/p>\n
            \n
          1. repr<\/code>: formal<\/strong> string representation of a Python object<\/li>\n
          2. str<\/code>: informal<\/strong> string representation of a Python object\uff0c\u6216\u8005\u8bf4 printable<\/strong> string representation<\/li>\n<\/ol>\n
            \u9996\u5148 repr<\/code> \u662f representation \u7684\u610f\u601d\uff0c\u4e00\u4e2a\u662f\u6b63\u5f0f\uff0c\u53e6\u4e00\u4e2a\u662f\u975e\u6b63\u5f0f\uff0c\u770b\u8d77\u6765 repr<\/code> \u6bd4 str<\/code> \u663e\u5f97\u91cd\u8981\u4e9b\u3002"},{"title":"\u6211\u7684 Python \u5feb\u901f\u5165\u95e8","link":"https:\/\/yanbin.blog\/my-python-warm-up\/","pubDate":"Mon, 27 Jun 2016 02:09:58 -0500","author":"yabqiu@gmail.com (Yanbin Qiu)","guid":"https:\/\/yanbin.blog\/my-python-warm-up\/","description":"\n\u672c\u6587\u53ea\u662f\u6211\u4e2a\u4eba\u7684\u638c\u63e1 Python \u7684\u5feb\u901f\u5165\u95e8\u7b14\u8bb0, \u6240\u4ee5\u6df7\u4e71\u4e0d\u582a, \u5e76\u4e0d\u9002\u5408\u4e8e\u6bcf\u4e00\u4e2a\u60f3\u8981\u5b66\u4e60 Python \u7684\u8bfb\u8005\nPython \u547d\u4ee4\u8fdb\u5230\u5b83\u7684 shell, ctrl+d \u6216 exit() \u9000\u51fa python. help(str) \u53ef\u4ee5\u67e5\u770b str \u51fd\u6570\u7684\u5e2e\u52a9, q \u9000\u51fa\u5e2e\u52a9. \u5bf9\u8c61\u7684\u65b9\u6cd5\u53ef\u7528 dir \u6765\u67e5\u770b, dir([])<\/code>, dir(\"\")<\/code>, \u8fdb\u800c help([].append)<\/code>, help(dir([]))<\/code>\nPython \u662f\u7528\u4e25\u683c\u7684\u7f29\u8fdb\u6765\u683c\u5f0f\u5316\u4ee3\u7801\u5757\u7684, Google \u7684 Python \u4ee3\u7801\u89c4\u8303<\/a>\u662f\u7528 4 \u4e2a\u7a7a\u683c\u6765\u7f29\u8fdb. Google \u5efa\u8bae Java \u662f\u7528\u4e24\u4e2a\u7a7a\u683c.\nPython \u662f\u52a8\u6001\u7c7b\u578b\u7684, \u6240\u4ee5\u53ef\u4ee5 a = 1; a = \"string\" \u968f\u610f\u8d4b\u503c\u4e3a\u4e0d\u540c\u7c7b\u578b. Python \u4e5f\u80fd\u7528\u5206\u53f7\u628a\u591a\u6761\u8bed\u53e5\u5199\u5728\u540c\u4e00\u884c\u91cc, \u4f46\u57fa\u672c\u6ca1\u4eba\u7528\u5206\u53f7\u7684.
            \nPython \u7684\u57fa\u672c\u7c7b\u578b\u6709 \u6574\u6570, \u957f\u6574\u6570, \u6d6e\u70b9\u6570\u548c\u590d\u6570, \u4ee5\u53ca\u5b57\u7b26\u4e32\n\u5b57\u7b26\u4e32\u53ef\u4ee5\u7528\u5355\u5f15\u53f7\u548c\u53cc\u5f15\u53f7, \u5b83\u4eec\u50cf Javascript, \u662f\u5b8c\u5168\u4e00\u6837\u7684
            \n''' \u6216 \"\u201d\u201d \u4e09\u5f15\u53f7\u7684\u5b57\u7b26\u4e32\u662f here doc, \u591a\u884c\u5b57\u7b26\u4e32
            \n\u8f6c\u4e49\u7b26\u4e5f\u662f\u7528 \\, \u5982 ''What\\\u2019s your name\\n?
            \n\u81ea\u7136\u5b57\u7b26\u4e32: \u5373\u4e0d\u8f6c\u4e49, \u7528 R \u6216 r \u6765\u6307\u5b9a, \u5982 r\"Newlines are indicated by \\n\u201d, \u4f1a\u8f93\u51fa \"\\n\"\" \u5b57\u9762\u503c. \u53ef\u7528\u4e8e\u4e66\u5199\u6b63\u5219\u8868\u8fbe\u5f0f
            \n\u653e\u5728\u4e00\u8d77\u7684\u5b57\u7b26\u4e32\u5c31\u4f1a\u88ab Python \u81ea\u52a8\u8fde\u63a5, \u5982 print ''What\\'s' ''your name?\u2019, \u8f93\u51fa\u4e3a \"What\u2019s your name?\u201d\nPython \u7684\u547d\u540d\u89c4\u5219\u6709\u51e0\u4e2a\u5fc5\u987b\u77e5\u9053\u7684: \u7c7b\u540d\u548c Java \u4e00\u6837; \u6a21\u5757, \u65b9\u6cd5, \u53d8\u91cf\u540d\u7528\u5c0f\u5199\u5b57\u6bcd\u4e0b\u5212\u7ebf\u5206\u9694, \u5e38\u91cf\u7528\u5927\u5199\u52a0\u4e0b\u5212\u7ebf. \u5355\u6216\u53cc\u4e0b\u5212\u7ebf\u5f00\u5934\u662f\u7279\u6b8a\u7528\u9014. \u547d\u540d\u89c4\u5219\u8bf7\u53c2\u8003             Google Python Style Guide#Naming<\/a>
            \nPython \u662f\u7eaf\u9762\u5411\u5bf9\u8c61\u7684, \u4efb\u4f55\u4e1c\u897f\u90fd\u662f\u5bf9\u8c61, \u51fd\u6570\u4e5f\u662f\nPython \u53ef\u4ee5\u7528 \\ \u6765\u8fde\u63a5\u8bed\u53e5\u884c, \u50cf Bash \u4e00\u6837, \u5982"}]}}
          \u4e0a\u4e00\u7bc7\u00a0Python \u7684\u6a21\u5757\u641c\u7d22\u8def\u5f84<\/a>\uff0c\u4ecb\u7ecd\u4e86 Python \u7684\u6a21\u5757\u641c\u7d22\u8def\u5f84\uff0c\u6700\u7ec8\u8d77\u4f5c\u7528\u7684\u662f sys.path<\/code>\u00a0\u8def\u5f84\u5217\u8868\u3002\u5982\u679c\u8981\u81ea\u5b9a\u4e49\u81ea\u5df1\u7684\u641c\u7d22\u8def\u5f84\uff0c\u5c31\u662f\u8981\u600e\u4e48\u5b9a\u5236 sys.path<\/code>\u00a0\u7684\u5185\u5bb9\u3002\u53ef\u4ee5\u7b80\u5355\u7684\u7528 PYTHONPATH<\/code>\u00a0\u73af\u5883\u53d8\u91cf\u524d\u5411\u6dfb\u52a0\uff0c\u8fd9\u513f\u5c06\u8981\u8bf4\u7684\u662f\u7528 .pth<\/code>\u00a0\u6587\u4ef6\u7684\u65b9\u5f0f\u3002\u4e5f\u53ef\u7531\u6b64\u8fdb\u4e00\u6b65\u7406\u89e3 Python \u4f9d\u8d56\u7ba1\u7406\u5de5\u5177\uff0c\u50cf\u00a0 virtualenv<\/code>\u00a0\u7b49\u7684\u5de5\u4f5c\u539f\u7406\u3002<\/p>\n