This is a collection of known and unsolved issues with lambeq, including possible workarounds. If you encounter a problem that is not listed here, we encourage you to submit an issue.

SSL error [Windows]

When using lambeq <= 0.2.3 on a Windows machine, the instantiation of the BobcatParser might trigger an SSL certificate error. If you require lambeq <= 0.2.3, you can download the model through this link, extract the archive, and provide the path to the BobcatParser:

from lambeq import BobcatParser
parser = BobcatParser('path/to/model_dir')

Note that using the WebParser will most likely result in the same error.

However, this was resolved in release 0.2.4. Please consider upgrading lambeq:

pip install --upgrade lambeq