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报错

命令：python manage.py runerver 0.0.0.0:8001
原因：django版本更新，需要使用更高版本的sqlite，但是sqlite在python中被内置，无法直接升级卸载

Traceback (most recent call last): File "/home/project/new_django/manage.py", line 11, in main from django.core.management import execute_from_command_line ModuleNotFoundError: No module named 'django' The above exception was the direct cause of the following exception: Traceback (most recent call last): File "/home/project/new_django/manage.py", line 22, in <module> main() File "/home/project/new_django/manage.py", line 13, in main raise ImportError( ImportError: Couldn't import Django. Are you sure it's installed and available on your PYTHONPATH environment variable? Did you forget to activate a virtual environment

快速修复（可直接复制执行）

系统 SQLite 太旧，需用 pysqlite3 替代内置 sqlite3

• 安装替代库：

source .venv/bin/activate # 激活对应的虚拟环境
pip install pysqlite3-binary

• 在虚拟环境的 site-packages 放置 sitecustomize.py：

SITE_PACKAGES=$(python -c ‘import sysconfig; print(sysconfig.get_paths()[“purelib”])’)

cat > “$SITE_PACKAGES/sitecustomize.py” <<‘PY’
import pysqlite3 as sqlite3
import sys
sys.modules[‘sqlite3’] = sqlite3
sys.modules[‘sqlite3.dbapi2’] = sqlite3.dbapi2
PY

• 验证：

python -c ‘import sqlite3; print(sqlite3.sqlite_version)’

实测后效果，可用