Anaconda 3 Jupyter: jsonschema installed but says must install

Question

Running "jupyter notebook" from the Anaconda 3 command prompt generates this:

Traceback (most recent call last): File "C:\ProgramData\Anaconda3\lib\site-packages\jsonschema_init_.py", line 31, in from importlib import metadata ImportError: cannot import name 'metadata' from 'importlib' (C:\ProgramData\Anaconda3\lib\importlib_init_.py) During handling of the above exception, another exception occurred: Traceback (most recent call last): File "C:\ProgramData\Anaconda3\lib\site-packages\nbformat\validator.py", line 12, in from jsonschema import ValidationError File "C:\ProgramData\Anaconda3\lib\site-packages\jsonschema_init_.py", line 33, in import importlib_metadata as metadata ModuleNotFoundError: No module named 'importlib_metadata' During handling of the above exception, another exception occurred: Traceback (most recent call last): File "C:\ProgramData\Anaconda3\Scripts\jupyter-notebook-script.py", line 6, in from notebook.notebookapp import main File "C:\ProgramData\Anaconda3\lib\site-packages\notebook\notebookapp.py", line 80, in from .services.contents.manager import ContentsManager File "C:\ProgramData\Anaconda3\lib\site-packages\notebook\services\contents\manager.py", line 17, in from nbformat import sign, validate as validate_nb, ValidationError File "C:\ProgramData\Anaconda3\lib\site-packages\nbformat_init_.py", line 32, in from .validator import validate, ValidationError File "C:\ProgramData\Anaconda3\lib\site-packages\nbformat\validator.py", line 23, in raise ImportError(str(e) + verbose_msg) ImportError: No module named 'importlib_metadata'

Jupyter notebook format depends on the jsonschema package:
    https://pypi.python.org/pypi/jsonschema
Please install it first.

I have tried everything I have found in other threads here, using pip instead of conda install, etc.

For example, here is conda install ... apparently working fine and finding jsonschema already there as well:

(base) C:\WINDOWS\system32>conda install jsonschema Collecting package metadata (current_repodata.json): done Solving environment: done

Package Plan

environment location: C:\ProgramData\Anaconda3 added / updated specs: - jsonschema The following packages will be SUPERSEDED by a higher-priority channel: jsonschema anaconda --> pkgs/main Proceed ([y]/n)? y Preparing transaction: done Verifying transaction: done Executing transaction: done

Nothing that I do gets Jupyter Notebook to work in Anaconda 3.

Sorry about the corruption of the formatting of my note ... I do not understand why it smashed all the lines together into a huge block in this note when I entered it with separate lines.

Answer 1

You must on Anaconda Prompt, do :

conda install jsonschema==3.0.2