can not install psycopg2 on macOS Catalina

Question

when installing psycopg2 in my Django project

pip install psycopg2==2.7.*

I get this error :

psycopg/psycopgmodule.c:689:18: error: incomplete definition of type 'struct _is'

I tried the answer to the following question: Is there any problem installing psycopg2 in virtualenv on MacOS catalina with PostgreSQL 12.1 installed? but I still get the same error

Answer 1

安装psycopg2-binary对我psycopg2-binary 。

Answer 2

If you are using Python 3.8.x then the support for the same was added in psycopg2 2.8.x. I faced the same problem but worked out fine once I switched to python 3.7.x

Answer 3

Installing PostgreSQL fixed it for me, but the error was not exactly the same. Anyways, give it a try:

brew install postgresql

Cheers