{"id":5779,"date":"2024-03-14T03:21:11","date_gmt":"2024-03-14T03:21:11","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-write-a-process-hooker-in-python\/"},"modified":"2025-08-01T19:33:11","modified_gmt":"2025-08-01T19:33:11","slug":"how-to-write-a-process-hooker-in-python","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-write-a-process-hooker-in-python\/","title":{"rendered":"Python Process Monitor Tutorial"},"content":{"rendered":"<p>To create a Python program for a process sniffer (which monitors and selects processes), you can utilize the psutil library to obtain current system process information, and use the tkinter library to create a graphical interface for displaying process information and performing selection operations.<\/p>\n<p>Here is a simple example code that implements a basic process checker functionality.<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">import<\/span> psutil\r\n<span class=\"hljs-keyword\">import<\/span> tkinter <span class=\"hljs-keyword\">as<\/span> tk\r\n\r\n<span class=\"hljs-keyword\">def<\/span> <span class=\"hljs-title function_\">update_process_list<\/span>():\r\n    process_list.delete(<span class=\"hljs-number\">0<\/span>, tk.END) <span class=\"hljs-comment\"># \u6e05\u7a7a\u8fdb\u7a0b\u5217\u8868<\/span>\r\n    \r\n    <span class=\"hljs-keyword\">for<\/span> proc <span class=\"hljs-keyword\">in<\/span> psutil.process_iter():\r\n        <span class=\"hljs-keyword\">try<\/span>:\r\n            process = psutil.Process(proc.pid)\r\n            process_list.insert(tk.END, <span class=\"hljs-string\">f\"<span class=\"hljs-subst\">{proc.pid}<\/span>: <span class=\"hljs-subst\">{process.name()}<\/span>\"<\/span>) <span class=\"hljs-comment\"># \u63d2\u5165\u8fdb\u7a0b\u4fe1\u606f<\/span>\r\n        <span class=\"hljs-keyword\">except<\/span> (psutil.NoSuchProcess, psutil.AccessDenied, psutil.ZombieProcess):\r\n            <span class=\"hljs-keyword\">pass<\/span>\r\n\r\n<span class=\"hljs-keyword\">def<\/span> <span class=\"hljs-title function_\">on_select<\/span>():\r\n    selected_index = process_list.curselection()\r\n    <span class=\"hljs-keyword\">if<\/span> selected_index:\r\n        selected_pid = <span class=\"hljs-built_in\">int<\/span>(process_list.get(selected_index).split(<span class=\"hljs-string\">':'<\/span>)[<span class=\"hljs-number\">0<\/span>])\r\n        selected_process = psutil.Process(selected_pid)\r\n        <span class=\"hljs-built_in\">print<\/span>(<span class=\"hljs-string\">f\"Selected process: <span class=\"hljs-subst\">{selected_process.name()}<\/span>\"<\/span>)\r\n\r\n<span class=\"hljs-comment\"># \u521b\u5efa\u4e3b\u7a97\u53e3<\/span>\r\nroot = tk.Tk()\r\nroot.title(<span class=\"hljs-string\">\"Process Selector\"<\/span>)\r\n\r\n<span class=\"hljs-comment\"># \u521b\u5efa\u8fdb\u7a0b\u5217\u8868\u6846<\/span>\r\nprocess_list = tk.Listbox(root, width=<span class=\"hljs-number\">50<\/span>)\r\nprocess_list.pack()\r\n\r\n<span class=\"hljs-comment\"># \u521b\u5efa\u66f4\u65b0\u6309\u94ae<\/span>\r\nupdate_button = tk.Button(root, text=<span class=\"hljs-string\">\"Update\"<\/span>, command=update_process_list)\r\nupdate_button.pack()\r\n\r\n<span class=\"hljs-comment\"># \u521b\u5efa\u9009\u62e9\u6309\u94ae<\/span>\r\nselect_button = tk.Button(root, text=<span class=\"hljs-string\">\"Select\"<\/span>, command=on_select)\r\nselect_button.pack()\r\n\r\n<span class=\"hljs-comment\"># \u521d\u59cb\u5316\u8fdb\u7a0b\u5217\u8868<\/span>\r\nupdate_process_list()\r\n\r\n<span class=\"hljs-comment\"># \u8fd0\u884c\u4e3b\u4e8b\u4ef6\u5faa\u73af<\/span>\r\nroot.mainloop()\r\n<\/code><\/pre>\n<p>The code above creates a simple graphical interface that displays a list of processes currently running on the system. Users can choose a process and click the &#8220;Select&#8221; button to obtain information about the selected process. It is important to note that this example only showcases basic functionality, and you can further enhance and customize it as needed.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>To create a Python program for a process sniffer (which monitors and selects processes), you can utilize the psutil library to obtain current system process information, and use the tkinter library to create a graphical interface for displaying process information and performing selection operations. Here is a simple example code that implements a basic process [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[6601,6599,72,6602,6600],"class_list":["post-5779","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-process-monitoring","tag-psutil","tag-python","tag-system-tools","tag-tkinter"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Python Process Monitor Tutorial - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn to build a Python process monitor using psutil and tkinter. 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