ImportError: No module named mechanize

Hello,

When I have run script I got this error:

Connected to HTTPS on xxx.xxx.com with ciphersuite (TLS1.2)-(ECDHE-SECP256R1)-(RSA-SHA512)-(AES-128-GCM)
Traceback (most recent call last):
File "/snap/tncc-script/3/tncc-script.py", line 5, in
import mechanize
ImportError: No module named mechanize
Failed to read response from TNCC
Failed to obtain WebVPN cookie

But the package is installed.

$ sudo eopkg li |grep python-mechanize
python-mechanize - Python Mechanize Module

Can you help?
Murat