修改

deploy/lib.sh

@@ -36,3 +36,36 @@ git_update_safe() {
     git stash pop || echo "    提示: stash 恢复冲突时可手动处理: git stash list"
   fi
 }
+
+# 创建 .venv 并安装依赖（不依赖系统 pip）
+ensure_python_venv() {
+  local repo_dir="${1:?}"
+  cd "$repo_dir"
+
+  local venv_python="${repo_dir}/.venv/bin/python"
+  local venv_pip="${repo_dir}/.venv/bin/pip"
+
+  if [ ! -x "$venv_python" ]; then
+    echo "    创建虚拟环境 .venv ..."
+    if ! python3 -m venv .venv 2>/dev/null; then
+      echo "    安装 python3-venv（需要 root）..."
+      if command -v apt-get &>/dev/null; then
+        sudo apt-get update -qq
+        sudo DEBIAN_FRONTEND=noninteractive apt-get install -y -qq python3-venv python3-pip
+      elif command -v yum &>/dev/null; then
+        sudo yum install -y python3-pip
+      elif command -v dnf &>/dev/null; then
+        sudo dnf install -y python3-pip
+      else
+        echo "错误: 无法创建 venv，请手动安装 python3-venv 或 python3-pip"
+        exit 1
+      fi
+      python3 -m venv .venv
+    fi
+  fi
+
+  echo "    安装 Python 依赖到 .venv ..."
+  "$venv_pip" install -U pip -q
+  "$venv_pip" install -r backend/requirements.txt -q
+  echo "    使用: $("$venv_python" --version 2>&1) ($venv_python)"
+}

deploy/pm2-deploy.sh

@@ -45,9 +45,7 @@ fi
 
 mkdir -p data logs
 
-echo "==> 安装 Python 依赖..."
-python3 -m pip install -U pip -q
-python3 -m pip install -r backend/requirements.txt -q
+ensure_python_venv "${INSTALL_DIR}"
 
 echo "==> 启动 PM2..."
 pm2 delete binance-altcoin-monitor 2>/dev/null || true