AttributeError occurred when install dependencies: module 'jsonschema' has no attribute 'Draft7Validator'

[cmsax]

• I am on the latest Poetry version.
• I have searched the issues of this repo and believe that this is not a duplicate.
• If an exception occurs when executing a command, I executed it again in debug mode (-vvv option).

• version OS name: 10.15.4 macOS Catalina
• poetry version: 1.0.5
• pyproject.toml: https://gist.github.com/cmsax/12d6cc77849bd4eca645df02fe6aa4cc.js

Issue

Exception occurred when I try to install dependencies with poetry install:

$ poetry install -v

[AttributeError]
module 'jsonschema' has no attribute 'Draft7Validator'

Traceback (most recent call last):
  File "/Users/username/Library/Python/3.7/lib/python/site-packages/clikit/console_application.py", line 131, in run
    status_code = command.handle(parsed_args, io)
  File "/Users/username/Library/Python/3.7/lib/python/site-packages/clikit/api/command/command.py", line 120, in handle
    status_code = self._do_handle(args, io)
  File "/Users/username/Library/Python/3.7/lib/python/site-packages/clikit/api/command/command.py", line 163, in _do_handle
    self._dispatcher.dispatch(PRE_HANDLE, event)
  File "/Users/username/Library/Python/3.7/lib/python/site-packages/clikit/api/event/event_dispatcher.py", line 22, in dispatch
    self._do_dispatch(listeners, event_name, event)
  File "/Users/username/Library/Python/3.7/lib/python/site-packages/clikit/api/event/event_dispatcher.py", line 89, in _do_dispatch
    listener(event, event_name, self)
  File "/Users/username/Library/Python/3.7/lib/python/site-packages/poetry/console/config/application_config.py", line 86, in set_env
    poetry = command.poetry
  File "/Users/username/Library/Python/3.7/lib/python/site-packages/poetry/console/commands/command.py", line 10, in poetry
    return self.application.poetry
  File "/Users/username/Library/Python/3.7/lib/python/site-packages/poetry/console/application.py", line 49, in poetry
    self._poetry = Factory().create_poetry(Path.cwd())
  File "/Users/username/Library/Python/3.7/lib/python/site-packages/poetry/factory.py", line 48, in create_poetry
    check_result = self.validate(local_config)
  File "/Users/username/Library/Python/3.7/lib/python/site-packages/poetry/factory.py", line 272, in validate
    validation_errors = validate_object(config, 'poetry-schema')
  File "/Users/username/Library/Python/3.7/lib/python/site-packages/poetry/json/__init__.py", line 27, in validate_object
    validator = jsonschema.Draft7Validator(schema)

jsonschema version:

$ pip list | grep jsonschema
jsonschema                    3.2.0

The latest jsonschema has attribute Draft7Validator according to jsonschema's documentation

[cmsax]

I solved this issue by:

1. remove poetry in virtualenv
2. remove poetry out of virtualenv by remove poetry binary
3. reinstall poetry in virtualenv

It may because poetry ran with wrong binary.

[BinamB]

I ran into this issue few days ago. Seems to me its some dependency conflict when you try to do pip install poetry. Using the bootstrap script for installing worked for me.
curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | python

[github-actions]

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.