Update app.py

app.py

@@ -30,7 +30,7 @@ def install_sam2():
             os.chdir(sam2_dir)
             
             # 安装依赖
-            subprocess.run(["pip", "install", "-e", "."], check=True)
+            subprocess.run(["python","-m","pip", "install", "-e", "."], check=True)
             
             # 切换到checkpoints目录下载模型
             os.chdir("checkpoints")