Following along in the nbdev tutorial I keep running into the below error:
$ nbdev_build_lib
Traceback (most recent call last):
File "/usr/local/anaconda3/envs/person_compare/bin/nbdev_build_lib", line 7, in <module>
from nbdev.export2html import nbdev_build_lib
File "/usr/local/anaconda3/envs/person_compare/site-packages/nbdev/__init__.py", line 4, in <module>
from .imports import *
File "/usr/local/anaconda3/envs/person_compare/site-packages/nbdev/imports.py", line 6, in <module>
import os,re,json,glob,collections,pickle,shutil,inspect,yaml,tempfile,enum,stat,time,random,sys
File "/usr/local/anaconda3/envs/person_compare/site-packages/yaml/__init__.py", line 13, in <module>
from .cyaml import *
File "/usr/local/anaconda3/envs/person_compare/site-packages/yaml/cyaml.py", line 7, in <module>
from yaml._yaml import CParser, CEmitter
File "/usr/local/anaconda3/envs/person_compare/site-packages/yaml/_yaml.py", line 9, in <module>
__bootstrap__()
File "/usr/local/anaconda3/envs/person_compare/site-packages/yaml/_yaml.py", line 7, in __bootstrap__
mod = importlib.util.module_from_spec(spec)
File "<frozen importlib._bootstrap>", line 589, in module_from_spec
AttributeError: 'NoneType' object has no attribute 'loader'
Versions:
conda list | rg "(nbdev|python)"
ipython 7.26.0 py37h5b6bc8d_0 conda-forge
ipython_genutils 0.2.0 pyhd3eb1b0_1
nbdev 1.1.15 py_0 fastai
python 3.7.10 1_73_pypy conda-forge
python-dateutil 2.8.2 pyhd3eb1b0_0
python-lsp-jsonrpc 1.0.0 pyhd8ed1ab_0 conda-forge
python-lsp-server 1.2.0 pyhd8ed1ab_0 conda-forge
python_abi 3.7 2_pypy37_pp73 conda-forge
❯ conda list | rg "(nbdev|python|jupyter)"
ipython 7.26.0 py37h5b6bc8d_0 conda-forge
ipython_genutils 0.2.0 pyhd3eb1b0_1
jupyter 1.0.0 py37h5186d4c_6 conda-forge
jupyter-lsp 1.4.1 pyhd8ed1ab_0 conda-forge
jupyter-packaging 0.10.4 pyhd8ed1ab_0 conda-forge
jupyter_client 6.1.12 pyhd3eb1b0_0
jupyter_console 6.4.0 pyhd3eb1b0_0
jupyter_core 4.7.1 py37hecd8cb5_0
jupyter_server 1.4.1 py37hecd8cb5_0
jupyterlab 3.1.1 pyhd8ed1ab_0 conda-forge
jupyterlab-lsp 3.8.1 pyhd8ed1ab_0 conda-forge
jupyterlab_server 2.6.1 pyhd3eb1b0_0
jupyterlab_vim 0.14.2 pyhd8ed1ab_0 conda-forge
jupyterlab_widgets 1.0.0 pyhd3eb1b0_1
nbdev 1.1.15 py_0 fastai
python 3.7.10 1_73_pypy conda-forge
python-dateutil 2.8.2 pyhd3eb1b0_0
python-lsp-jsonrpc 1.0.0 pyhd8ed1ab_0 conda-forge
python-lsp-server 1.2.0 pyhd8ed1ab_0 conda-forge
python_abi 3.7 2_pypy37_pp73 conda-forge