{"id":3625,"date":"2025-05-30T15:17:56","date_gmt":"2025-06-04T07:39:56","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=3625"},"modified":"2025-06-04T15:17:56","modified_gmt":"2025-06-04T07:39:56","slug":"%e8%a7%a3%e6%b1%baprocesslookuperror%ef%bc%9apython%e4%b8%admethods%e5%87%bd%e6%95%b8%e7%9a%84%e5%8a%9f%e8%83%bd","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/python\/%e8%a7%a3%e6%b1%baprocesslookuperror%ef%bc%9apython%e4%b8%admethods%e5%87%bd%e6%95%b8%e7%9a%84%e5%8a%9f%e8%83%bd\/","title":{"rendered":"\u89e3\u6c7a Python \u4e2d\u7684 ProcessLookupError\uff1a2025 \u6700\u65b0\u65b9\u6cd5\u8207\u6700\u4f73\u5be6\u8e10"},"content":{"rendered":"

<\/p>\n

\u89e3\u6c7a Python \u4e2d\u7684 ProcessLookupError \u7684\u65b9\u6cd5<\/h1>\n

\u5728 Python \u7684\u958b\u767c\u904e\u7a0b\u4e2d\uff0c`ProcessLookupError` \u662f\u4e00\u500b\u5e38\u898b\u7684\u932f\u8aa4\uff0c\u53ef\u80fd\u5c0e\u81f4\u7a0b\u5f0f\u5d29\u6f70\u4e14\u6392\u932f\u904e\u7a0b\u76f8\u5c0d\u56f0\u96e3\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u6709\u6548\u89e3\u6c7a `ProcessLookupError`\uff0c\u4e26\u63d0\u4f9b\u9810\u9632\u63aa\u65bd\uff0c\u8b93\u60a8\u5728\u958b\u767c Python \u7a0b\u5f0f\u6642\u66f4\u52a0\u9806\u5229\u3002<\/p>\n

\u4ec0\u9ebc\u662f ProcessLookupError\uff1f<\/h2>\n

`ProcessLookupError` \u662f Python \u4e2d\u7684\u4e00\u7a2e\u932f\u8aa4\uff0c\u7576\u7a0b\u5f0f\u5617\u8a66\u8a2a\u554f\u4e0d\u5b58\u5728\u7684\u9032\u7a0b\u6642\u6703\u5f15\u767c\u6b64\u932f\u8aa4\u3002\u9019\u500b\u932f\u8aa4\u7684\u5177\u9ad4\u8868\u73fe\u662f\u4e00\u500b `OSError`\uff0c\u932f\u8aa4\u4ee3\u78bc\u70ba `-1`\uff0c\u932f\u8aa4\u8a0a\u606f\u70ba “No such process”\u3002\u4e86\u89e3\u9019\u4e00\u9ede\u5c0d\u65bc\u7de8\u5beb\u7a69\u5b9a\u7684\u7a0b\u5f0f\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n

\u5982\u4f55\u89e3\u6c7a ProcessLookupError\uff1f<\/h2>\n

\u89e3\u6c7a `ProcessLookupError` \u7684\u6700\u4f73\u65b9\u6cd5\u662f\u4ed4\u7d30\u6aa2\u67e5\u60a8\u7684\u7a0b\u5f0f\u78bc\uff0c\u78ba\u4fdd\u4e0d\u6703\u5617\u8a66\u8a2a\u554f\u4e0d\u5b58\u5728\u7684\u9032\u7a0b\u3002\u4ee5\u4e0b\u662f\u89e3\u6c7a\u8a72\u932f\u8aa4\u7684\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n

1. **\u6aa2\u67e5\u9032\u7a0b ID**\uff1a\u5728\u8a2a\u554f\u9032\u7a0b\u4e4b\u524d\uff0c\u78ba\u8a8d\u8a72\u9032\u7a0b ID \u662f\u5426\u5b58\u5728\u3002
\n2. **\u4f7f\u7528 psutil \u6a21\u7d44**\uff1a\u9019\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u7528\u4f86\u7372\u53d6\u7cfb\u7d71\u548c\u9032\u7a0b\u7684\u8cc7\u8a0a\uff0c\u4e26\u4e14\u53ef\u4ee5\u5e6b\u52a9\u60a8\u6aa2\u67e5\u9032\u7a0b\u662f\u5426\u5b58\u5728\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u5be6\u4f5c\u7bc4\u4f8b\uff1a<\/p>\n

“`python
\nimport psutil<\/p>\n

def check_process_exists(process_name):
\n “””\u6aa2\u67e5\u6307\u5b9a\u540d\u7a31\u7684\u9032\u7a0b\u662f\u5426\u5b58\u5728”””
\n for proc in psutil.process_iter():
\n if proc.name() == process_name:
\n print(f’\u9032\u7a0b {process_name} \u5b58\u5728\uff01’)
\n return True
\n print(f’\u9032\u7a0b {process_name} \u4e0d\u5b58\u5728\u3002’)
\n return False<\/p>\n

# \u6aa2\u67e5\u9032\u7a0b
\ncheck_process_exists(‘my_process’)
\n“`<\/p>\n

\u9019\u6bb5\u7a0b\u5f0f\u78bc\u6703\u5217\u51fa\u7576\u524d\u904b\u884c\u7684\u9032\u7a0b\uff0c\u4e26\u78ba\u8a8d\u6307\u5b9a\u7684\u9032\u7a0b\u662f\u5426\u5b58\u5728\u3002<\/p>\n

\u5982\u4f55\u9810\u9632 ProcessLookupError\uff1f<\/h2>\n

\u9810\u9632 `ProcessLookupError` \u53ef\u4ee5\u63d0\u9ad8\u7a0b\u5f0f\u7684\u7a69\u5b9a\u6027\uff0c\u4ee5\u4e0b\u662f\u5e7e\u500b\u6700\u4f73\u5be6\u8e10\uff1a<\/p>\n

– \u5728\u8a2a\u554f\u9032\u7a0b\u4e4b\u524d\uff0c\u4f7f\u7528 `psutil` \u6a21\u7d44\u6aa2\u67e5\u8a72\u9032\u7a0b\u662f\u5426\u5b58\u5728\u3002
\n– \u5728\u7de8\u5beb\u6d89\u53ca\u9032\u7a0b\u7684\u7a0b\u5f0f\u78bc\u6642\uff0c\u4f7f\u7528 `try-except` \u8a9e\u53e5\u4f86\u6355\u7372\u53ef\u80fd\u7684\u932f\u8aa4\uff0c\u4e26\u9032\u884c\u76f8\u61c9\u7684\u932f\u8aa4\u8655\u7406\u3002<\/p>\n

“`python
\ntry:
\n # \u5617\u8a66\u8a2a\u554f\u9032\u7a0b
\n proc = psutil.Process(process_id)
\n print(f’\u8a2a\u554f\u9032\u7a0b {proc.name()} \u6210\u529f’)
\nexcept psutil.NoSuchProcess:
\n print(‘\u932f\u8aa4\uff1a\u9032\u7a0b\u4e0d\u5b58\u5728\u3002’)
\n“`<\/p>\n

\u7e3d\u7d50<\/h2>\n

`ProcessLookupError` \u662f Python \u7a0b\u5f0f\u958b\u767c\u4e2d\u7684\u4e00\u500b\u5e38\u898b\u554f\u984c\u3002\u900f\u904e\u6aa2\u67e5\u7a0b\u5f0f\u78bc\u908f\u8f2f\u548c\u4f7f\u7528 `psutil` \u6a21\u7d44\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u548c\u9810\u9632\u9019\u4e00\u932f\u8aa4\u3002\u78ba\u4fdd\u5728\u7a0b\u5f0f\u4e2d\u9075\u5faa\u6700\u4f73\u5be6\u8e10\uff0c\u8b93\u60a8\u7684\u61c9\u7528\u7a0b\u5f0f\u66f4\u52a0\u7a69\u5b9a\u3002<\/p>\n

\u5982\u679c\u60a8\u60f3\u4e86\u89e3\u66f4\u591a Python \u7684\u9032\u968e\u61c9\u7528\uff0c\u8acb\u53c3\u8003 [\u9019\u7bc7\u6559\u5b78\u6587\u7ae0](https:\/\/vocus.cc\/article\/123456) \u4f86\u6df1\u5165\u5b78\u7fd2\u3002<\/p>\n

Q&A\uff08\u5e38\u898b\u554f\u984c\u89e3\u7b54\uff09<\/h2>\n

**Q1: ProcessLookupError \u6703\u5728\u4ec0\u9ebc\u60c5\u6cc1\u4e0b\u767c\u751f\uff1f**
\nA1: \u7576\u60a8\u7684\u7a0b\u5f0f\u5617\u8a66\u8a2a\u554f\u4e00\u500b\u5df2\u7d93\u7d50\u675f\u6216\u4e0d\u5b58\u5728\u7684\u9032\u7a0b\u6642\uff0c\u5c31\u6703\u5f15\u767c `ProcessLookupError`\u3002<\/p>\n

**Q2: psutil \u6a21\u7d44\u5982\u4f55\u4f7f\u7528\uff1f**
\nA2: `psutil` \u6a21\u7d44\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u7372\u53d6\u7cfb\u7d71\u548c\u9032\u7a0b\u7684\u8cc7\u8a0a\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 `process_iter()` \u65b9\u6cd5\u4f86\u904d\u6b77\u7576\u524d\u7684\u9032\u7a0b\u3002<\/p>\n

**Q3: \u5982\u4f55\u6709\u6548\u7ba1\u7406\u7cfb\u7d71\u9032\u7a0b\uff1f**
\nA3: \u900f\u904e\u4f7f\u7528 `psutil` \u6a21\u7d44\uff0c\u60a8\u53ef\u4ee5\u76e3\u63a7\u548c\u7ba1\u7406\u7cfb\u7d71\u7684\u9032\u7a0b\uff0c\u4e26\u9032\u884c\u5fc5\u8981\u7684\u932f\u8aa4\u8655\u7406\u4f86\u78ba\u4fdd\u7a0b\u5f0f\u7684\u7a69\u5b9a\u904b\u884c\u3002<\/p>\n

—<\/p>\n","protected":false},"excerpt":{"rendered":"

\u6587\u7ae0\u6458\u8981\uff1aProcessLookupError\u662fPython\u4e2d\u5e38\u898b\u7684\u932f\u8aa4\uff0c\u5b83\u53ef\u80fd\u6703\u5c0e\u81f4\u7a0b\u5e8f\u5d29\u6f70\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528Python\u4e2d\u7684methods()\u51fd\u6578\u4f86\u89e3\u6c7aProcessLookupError\uff0c\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528\u5b83\u4f86\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"author":1,"featured_media":2518,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[18],"tags":[15],"class_list":["post-3625","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-python","tag-python"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/badgameshow.com\/steven\/wp-content\/uploads\/2022\/12\/DALL\u00b7E-2022-12-28-14.25.55-\u62f7\u8c9d2.png","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-Wt","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3625","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/comments?post=3625"}],"version-history":[{"count":3,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3625\/revisions"}],"predecessor-version":[{"id":12778,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3625\/revisions\/12778"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media\/2518"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=3625"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=3625"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=3625"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}