Python - Crypto 导入失败问题解决记录

python 3.7

Mac

安装 psycopg2#

$ pip install psycopg2
...
Error: pg_config executable not found.
...

出现报错：Error: pg_config executable not found.

解决

参考：https://stackoverflow.com/questions/11618898/pg-config-executable-not-found

$ which pg_config
pg_config not found

# mac
$ brew install postgresql@11
$ ll /usr/local/Cellar | grep postgresql
drwxr-xr-x  3 lan  admin    96B 12 27 12:00 postgresql@11

# pg_config 在 bin 目录下，添加到环境变量内
$ PATH="/usr/local/Cellar/postgresql@11/11.17_3/bin:$PATH"
$ pip install psycopg2
Successfully installed psycopg2-2.9.5

刚开始下载的 postgresql@14 失败，报错需要安装 python3.9，安装了 11 版本，问题解决。

Crypto 导入失败#

from Crypto.Cipher import AES
# 出现 import error

解决

$ pip install pycryptodome
# 进入 \Lib\site-packages
# 将 crypto 首字母小写改为大写