Apache CustomLog directive failing - pipe

I have the following directive in my apache2_site.conf file:

        CustomLog "|/home/me/myjlog.py %h \"%r\"" common

which should create a log in my MySQL server. myjlog.py starts with:

#!/usr/bin/python3
import pymysql
import sys

ip=sys.argv[1]
req=sys.argv[2]
...

However, for each request to my site, the logging in my database isn't done.

What appears in /var/log/apache2/error.log is:

AH00106: piped log program '/home/me/myjlog.py %h "%r"' failed unexpectedly
Traceback (most recent call last):
  File "/home/alibaba/myjlog.py", line 2, in <module>
    import pymysql
ModuleNotFoundError: No module named 'pymysql'

It seems that python doesn't recognize the module pymysql. However this module is installed for users me and root...

How may I guarantee access to pymysql to apache2?

EDIT: 1 - I don't use any virtual environment on this server. 2 - After setting chmod -R g+rx /home/me/.local and chmod -R a+rx /home/me/.local, I run sudo -u www-data python3 -m site and obtained:

sys.path = [
    '/home/me',
    '/usr/lib/python36.zip',
    '/usr/lib/python3.6',
    '/usr/lib/python3.6/lib-dynload',
    '/home/me/.local/lib/python3.6/site-packages',
    '/usr/local/lib/python3.6/dist-packages',
    '/usr/lib/python3/dist-packages',
]
USER_BASE: '/home/me/.local' (exists)
USER_SITE: '/home/me/.local/lib/python3.6/site-packages' (exists)
ENABLE_USER_SITE: True

But still the CustomLog directive can't access pymysql.