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importing `DefaultV1Recipe` leads to AttributeError: module 'pyparsing' has no attribute 'downcaseTokens'

See original GitHub issue

On the main branch, importing this line of code in a try_this.py script file causes an error.

from rasa.engine.recipes.default_recipe import DefaultV1Recipe

This is the traceback.

Traceback (most recent call last):
  File "components/test_nlu_tok.py", line 7, in <module>
    from rasa.engine.recipes.default_recipe import DefaultV1Recipe
  File "/Users/vincent/Development/rasa-examples/venv/lib/python3.7/site-packages/rasa/engine/recipes/default_recipe.py", line 24, in <module>
    from rasa.engine.constants import (
  File "/Users/vincent/Development/rasa-examples/venv/lib/python3.7/site-packages/rasa/engine/constants.py", line 3, in <module>
    from rasa.core.channels import UserMessage
  File "/Users/vincent/Development/rasa-examples/venv/lib/python3.7/site-packages/rasa/core/channels/__init__.py", line 26, in <module>
    from rasa.core.channels.hangouts import HangoutsInput  # noqa: F401
  File "/Users/vincent/Development/rasa-examples/venv/lib/python3.7/site-packages/rasa/core/channels/hangouts.py", line 9, in <module>
    from oauth2client import client
  File "/Users/vincent/Development/rasa-examples/venv/lib/python3.7/site-packages/oauth2client/client.py", line 39, in <module>
    from oauth2client import transport
  File "/Users/vincent/Development/rasa-examples/venv/lib/python3.7/site-packages/oauth2client/transport.py", line 17, in <module>
    import httplib2
  File "/Users/vincent/Development/rasa-examples/venv/lib/python3.7/site-packages/httplib2/__init__.py", line 52, in <module>
    from . import auth
  File "/Users/vincent/Development/rasa-examples/venv/lib/python3.7/site-packages/httplib2/auth.py", line 20, in <module>
    auth_param_name = token.copy().setName("auth-param-name").addParseAction(pp.downcaseTokens)
AttributeError: module 'pyparsing' has no attribute 'downcaseTokens'

Here’s the version info.

Rasa Version      :         2.8.12
Minimum Compatible Version: 2.8.9
Rasa SDK Version  :         2.8.2
Rasa X Version    :         None
Python Version    :         3.7.7
Operating System  :         Darwin-19.3.0-x86_64-i386-64bit
Python Path       :         /Users/vincent/Development/rasa-examples/venv/bin/python

Issue Analytics

State:
Created 2 years ago
Comments:6 (3 by maintainers)

Top GitHub Comments

4reactions

jeanveaucommented, Oct 29, 2021

I have the same issue today when I tried to configure a new virtualenv

The issue is caused by some updates in last release of pyparsing (3.0.3), by limit the pyparsing version to 2.4.7, problem solved.

Think rasa need to update pyproject.toml file to fix this issue.

2reactions

marisbeautypalacecommented, Oct 31, 2021

Shalom guys, there is the following workaround/fix:

replace pp.downcaseTokens with pp.pyparsing_common.downcase_tokens in script auth.ph. That should run smoothly.

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