{"id":15316,"date":"2024-03-15T10:57:49","date_gmt":"2024-03-15T10:57:49","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-can-pyqt-call-a-python-script\/"},"modified":"2025-08-06T17:34:32","modified_gmt":"2025-08-06T17:34:32","slug":"how-can-pyqt-call-a-python-script","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-can-pyqt-call-a-python-script\/","title":{"rendered":"How can PyQt call a Python script?"},"content":{"rendered":"<p>To call a Python script in PyQt, you can use the QProcess class to run an external program or script.<\/p>\n<p>Here is a simple example demonstrating how to call a Python script in PyQt.<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">from<\/span> PyQt5.QtCore <span class=\"hljs-keyword\">import<\/span> QProcess\r\n<span class=\"hljs-keyword\">from<\/span> PyQt5.QtWidgets <span class=\"hljs-keyword\">import<\/span> QApplication, QDialog, QVBoxLayout, QPushButton\r\n\r\n<span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">MyDialog<\/span>(<span class=\"hljs-title class_ inherited__\">QDialog<\/span>):\r\n    <span class=\"hljs-keyword\">def<\/span> <span class=\"hljs-title function_\">__init__<\/span>(<span class=\"hljs-params\">self<\/span>):\r\n        <span class=\"hljs-built_in\">super<\/span>().__init__()\r\n        layout = QVBoxLayout()\r\n        button = QPushButton(<span class=\"hljs-string\">\"\u8c03\u7528Python\u811a\u672c\"<\/span>)\r\n        button.clicked.connect(self.call_python_script)\r\n        layout.addWidget(button)\r\n        self.setLayout(layout)\r\n\r\n    <span class=\"hljs-keyword\">def<\/span> <span class=\"hljs-title function_\">call_python_script<\/span>(<span class=\"hljs-params\">self<\/span>):\r\n        process = QProcess(self)\r\n        process.start(<span class=\"hljs-string\">\"python\"<\/span>, [<span class=\"hljs-string\">\"path\/to\/your_script.py\"<\/span>])\r\n        process.waitForFinished()\r\n        output = process.readAllStandardOutput().data().decode()\r\n        <span class=\"hljs-built_in\">print<\/span>(output)\r\n\r\n<span class=\"hljs-keyword\">if<\/span> __name__ == <span class=\"hljs-string\">\"__main__\"<\/span>:\r\n    app = QApplication([])\r\n    dialog = MyDialog()\r\n    dialog.show()\r\n    app.exec_()\r\n<\/code><\/pre>\n<p>In the example above, we created a MyDialog class as the main dialog, which has a button that, when clicked, will call a Python script.<\/p>\n<p>In the &#8220;call_python_script&#8221; method, we create a QProcess object and use the start method to specify the path of the Python script to be called. Feel free to replace the script path with your own.<\/p>\n<p>Next, we use the waitForFinished method to wait for the script to finish executing and use the readAllStandardOutput method to retrieve the script&#8217;s output. In this example, we simply print the output to the console, but you can handle it however you want.<\/p>\n<p>Please make sure you have installed the PyQt library before running this code. You can install the PyQt library in Python using the following command:<\/p>\n<pre class=\"post-pre\"><code>pip install pyqt5\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>To call a Python script in PyQt, you can use the QProcess class to run an external program or script. Here is a simple example demonstrating how to call a Python script in PyQt. from PyQt5.QtCore import QProcess from PyQt5.QtWidgets import QApplication, QDialog, QVBoxLayout, QPushButton class MyDialog(QDialog): def __init__(self): super().__init__() layout = QVBoxLayout() button = [&hellip;]<\/p>\n","protected":false},"author":9,"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":[453,1402,299,1404,1403],"class_list":["post-15316","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-development","tag-guide","tag-programming","tag-technology","tag-tutorial"],"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>How can PyQt call a Python script? - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn about how can pyqt call a python script?. 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