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#!/usr/bin/env python3
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"""
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完整的PyQt5问题解决方案
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运行此脚本可以完全避免PyQt5平台插件问题
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"""
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import subprocess
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import sys
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import os
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import shutil
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import platform
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def run_command(cmd, description):
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"""运行命令并显示进度"""
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print(f"正在执行: {description}")
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result = subprocess.run(cmd, capture_output=True, text=True)
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if result.returncode != 0:
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print(f"❌ 失败: {result.stderr}")
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return False
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print(f"✅ 完成")
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return True
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def clean_pyqt5_installation():
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"""彻底清理PyQt5安装"""
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print("=== 清理PyQt5安装 ===")
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# 1. 卸载PyQt5包
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run_command([sys.executable, "-m", "pip", "uninstall", "PyQt5", "PyQt5-Qt5", "PyQt5-sip", "-y"],
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"卸载PyQt5包")
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# 2. 清理残留文件
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venv_path = os.environ.get('VIRTUAL_ENV', '')
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if venv_path:
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site_packages = os.path.join(venv_path, 'lib', f'python{sys.version_info.major}.{sys.version_info.minor}', 'site-packages')
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if os.path.exists(site_packages):
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removed_count = 0
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for item in os.listdir(site_packages):
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if 'pyqt5' in item.lower():
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item_path = os.path.join(site_packages, item)
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try:
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if os.path.isdir(item_path):
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shutil.rmtree(item_path)
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else:
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os.remove(item_path)
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removed_count += 1
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print(f" 删除: {item}")
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except Exception as e:
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print(f" 删除失败 {item}: {e}")
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print(f"✅ 清理完成，删除了 {removed_count} 个项目")
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return True
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def install_pyqt5_properly():
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"""正确安装PyQt5"""
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print("=== 安装PyQt5 ===")
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# 使用清华镜像源加速下载（可选）
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pip_args = [sys.executable, "-m", "pip", "install"]
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# 检查是否有国内镜像源可用
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try:
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import requests
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response = requests.get("https://pypi.tuna.tsinghua.edu.cn/simple", timeout=5)
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if response.status_code == 200:
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pip_args.extend(["-i", "https://pypi.tuna.tsinghua.edu.cn/simple"])
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print("使用清华镜像源")
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except:
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pass
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# 安装PyQt5
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pip_args.extend(["PyQt5==5.15.10", "--no-cache-dir", "--force-reinstall"])
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return run_command(pip_args, "安装PyQt5")
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def setup_environment_variables():
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"""设置环境变量"""
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print("=== 设置环境变量 ===")
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system = platform.system()
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venv_path = os.environ.get('VIRTUAL_ENV', '')
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if not venv_path:
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print("❌ 未检测到虚拟环境")
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return False
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python_version = f"python{sys.version_info.major}.{sys.version_info.minor}"
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# 可能的Qt插件路径
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possible_paths = []
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if system == "Darwin": # macOS
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possible_paths = [
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os.path.join(venv_path, 'lib', python_version, 'site-packages', 'PyQt5', 'Qt5', 'plugins'),
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'/usr/local/opt/qt5/plugins',
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'/opt/homebrew/opt/qt5/plugins',
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]
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elif system == "Windows":
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possible_paths = [
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os.path.join(venv_path, 'Lib', 'site-packages', 'PyQt5', 'Qt5', 'plugins'),
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]
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elif system == "Linux":
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possible_paths = [
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os.path.join(venv_path, 'lib', python_version, 'site-packages', 'PyQt5', 'Qt5', 'plugins'),
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'/usr/lib/x86_64-linux-gnu/qt5/plugins',
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]
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# 找到有效的路径
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valid_path = None
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for path in possible_paths:
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if os.path.exists(path) and os.path.exists(os.path.join(path, 'platforms')):
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valid_path = path
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break
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if valid_path:
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# 创建环境变量设置脚本
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env_script = f"""
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# PyQt5环境变量设置
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export QT_PLUGIN_PATH="{valid_path}"
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export QT_QPA_PLATFORM_PLUGIN_PATH="{os.path.join(valid_path, 'platforms')}"
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"""
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if system == "Darwin":
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env_script += """
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export QT_QPA_PLATFORM="cocoa"
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export QT_MAC_WANTS_LAYER="1"
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export QT_LOGGING_RULES="qt.qpa.*=false"
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"""
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elif system == "Windows":
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env_script += """
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export QT_QPA_PLATFORM="windows"
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"""
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elif system == "Linux":
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env_script += """
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export QT_QPA_PLATFORM="xcb"
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"""
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# 保存环境变量脚本
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project_root = os.path.dirname(os.path.abspath(__file__))
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env_file = os.path.join(project_root, 'set_pyqt5_env.sh')
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with open(env_file, 'w') as f:
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f.write(env_script.strip())
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print(f"✅ 环境变量脚本已创建: {env_file}")
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print(f" QT_PLUGIN_PATH: {valid_path}")
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return True
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else:
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print("❌ 未找到有效的Qt插件路径")
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return False
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def verify_installation():
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"""验证安装"""
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print("=== 验证安装 ===")
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# 测试导入
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test_code = """
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import sys
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import os
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# 设置环境变量
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if 'QT_PLUGIN_PATH' in os.environ:
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os.environ['QT_PLUGIN_PATH'] = os.environ['QT_PLUGIN_PATH']
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if 'QT_QPA_PLATFORM_PLUGIN_PATH' in os.environ:
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os.environ['QT_QPA_PLATFORM_PLUGIN_PATH'] = os.environ['QT_QPA_PLATFORM_PLUGIN_PATH']
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try:
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from PyQt5.QtWidgets import QApplication, QLabel
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from PyQt5.QtCore import Qt
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app = QApplication(sys.argv)
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label = QLabel("PyQt5安装成功！✅")
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label.setAlignment(Qt.AlignCenter)
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label.resize(200, 100)
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label.show()
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# 只显示2秒后自动关闭
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from PyQt5.QtCore import QTimer
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QTimer.singleShot(2000, app.quit)
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app.exec_()
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print("✅ PyQt5验证成功！")
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except Exception as e:
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print(f"❌ PyQt5验证失败: {e}")
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import traceback
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traceback.print_exc()
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"""
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with open('test_pyqt5.py', 'w') as f:
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f.write(test_code)
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result = subprocess.run([sys.executable, 'test_pyqt5.py'], capture_output=True, text=True)
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# 清理测试文件
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if os.path.exists('test_pyqt5.py'):
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os.remove('test_pyqt5.py')
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return result.returncode == 0
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def main():
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"""主函数"""
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print("=== PyQt5完整修复方案 ===")
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print(f"系统: {platform.system()}")
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print(f"Python: {sys.version}")
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print(f"虚拟环境: {os.environ.get('VIRTUAL_ENV', '未激活')}")
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print()
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# 获取项目根目录
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project_root = os.path.dirname(os.path.abspath(__file__))
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os.chdir(project_root)
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steps = [
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("清理安装", clean_pyqt5_installation),
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("重新安装", install_pyqt5_properly),
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("设置环境", setup_environment_variables),
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("验证安装", verify_installation),
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]
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success = True
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for step_name, step_func in steps:
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if not step_func():
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print(f"❌ {step_name} 失败")
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success = False
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break
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print()
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if success:
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print("🎉 PyQt5修复完成！")
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print("\n使用方法:")
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print("1. 运行: source set_pyqt5_env.sh")
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print("2. 然后运行: python src/main.py")
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else:
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print("❌ PyQt5修复失败，请检查错误信息")
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return success
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if __name__ == "__main__":
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success = main()
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sys.exit(0 if success else 1)
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