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Cant install python jsonschema package using pip gettting backend BackendUnavailable

stackoverflow.com › questions › 69391017 › cant-install-python-jsonschema-package-using-pip-gettting-backend-backendunavail

jsonschema 3.2.0 and perhaps any version less than 4.0 support Python 2.7. Try

pip install "jsonschema<4.0"

Answer from phd on Stack Overflow

PyPI

pypi.org › project › jsonschema

jsonschema · PyPI

jsonschema is available on PyPI. You can install using pip:

      » pip install jsonschema

Published Jan 07, 2026

Version 4.26.0

Repository https://github.com/python-jsonschema/jsonschema

Stack Overflow

stackoverflow.com › questions › 69391017 › cant-install-python-jsonschema-package-using-pip-gettting-backend-backendunavail

Cant install python jsonschema package using pip gettting backend BackendUnavailable - Stack Overflow

Top answer

1 of 10

I think I have a solution.

I did may things, regenerated my env (anaconda env) from another computer where it worked, but no success.

What I think that nailed it is upgrading jsonschema to 2.5.1

Here are my steps from "bad" jupyter env to working jupyter env.

Good luck and come back if it doesn't work, I will post the notebook* relevant versions.

>conda upgrade pip
pip:        8.1.0-py27_0  --> 8.1.1-py27_0
setuptools: 20.2.2-py27_0 --> 20.3-py27_0 

>pip install functools32
Downloading functools32-3.2.3-2.tar.gz    
Successfully installed functools32-3.2.3.post2

>jupyter notebook
ImportError: No module named _version
Jupyter notebook format depends on the jsonschema package:
    https://pypi.python.org/pypi/jsonschema
Please install it first.

>pip install jsonschema
Requirement already satisfied

>pip install --upgrade jsonschema
Collecting jsonschema
Downloading jsonschema-2.5.1-py2.py3-none-any.whl
Successfully uninstalled jsonschema-2.4.0
Successfully installed jsonschema-2.5.1

>jupyter notebook
[I 16:45:41.708 NotebookApp] Writing notebook server cookie secret to 
[I 16:45:42.134 NotebookApp] Serving notebooks from local directory: 
[I 16:45:42.134 NotebookApp] 0 active kernels 
[I 16:45:42.134 NotebookApp] The Jupyter Notebook is running at: http://localhost:8888/

2 of 10

i also got the same error and none of the above mentioned procedures worked for me so i've checked the documentation of anaconda and found something useful

conda install -c conda-forge/label/cf201901 jsonschema

conda install jupyter

jupyter notebook

this worked for me,thanks to anaconda documentation

piwheels

piwheels.org › project › jsonschema

piwheels - jsonschema

January 7, 2026 - pip3 install jsonschema · attrs · rpds-py · referencing · jsonschema-specifications · PyPI page · pypi.org/ project/ jsonschema · Project JSON · piwheels.org/ project/ jsonschema/ json · Versions · 109 · Files · 107 · Downloads · (all time) loading...

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pytz

pythonhosted.org › json-schema-validator › installation.html

Installation — JSON Schema Validator 2.3.1 documentation

This package is being actively maintained and published in the Python Package Index. You can install it if you have pip tool using just one line:

Readthedocs

python-jsonschema.readthedocs.io › en › v3.2.0

jsonschema — jsonschema 3.2.0 documentation

jsonschema is available on PyPI. You can install using pip:

Howtoinstall.me

howtoinstall.me › ubuntu › 18-04 › python-jsonschema

How to Install python-jsonschema in Ubuntu 18.04

Ubuntu · 18.04 · python-jsonschema · Install python-jsonschema by entering the following commands in the terminal: sudo apt update sudo apt install python-jsonschema · Description: An(other) implementation of JSON Schema (Draft 3 and 4) - Python 2.7 · JSON Schema is a specification for ...

GitHub

github.com › Julian › jsonschema › issues › 276

Unable to pip install jsonschema because of setup_requires vcversioner · Issue #276 · python-jsonschema/jsonschema

March 4, 2016 - I basically have the same issue as #257. The problem is well detailed here : pypa/pip#410 http://stackoverflow.com/a/27789623 Basically, setup_requires is very cumbersome option when you want to avoid a simple pip install to talk to Pypi...

Author Lucas-C

DevManuals

devmanuals.net › install › ubuntu › ubuntu-16-10-yakkety-yak › installing-python-jsonschema-on-ubuntu16-10.html

How to install python-jsonschema on Ubuntu 16.10 (Yakkety Yak)?

In this article we are going to learn the commands and steps to install python-jsonschema package on Ubuntu 16.10.

PyPI

pypi.org › project › jsonschema-specifications

jsonschema-specifications · PyPI

pip install jsonschema-specifications Copy PIP instructions · Latest version · Released: Sep 8, 2025 · The JSON Schema meta-schemas and vocabularies, exposed as a Registry · These details have been verified by PyPI · Homepage · Issues · Source · JSON Schema ·

      » pip install jsonschema-specifications

Published Sep 08, 2025

Version 2025.9.1

Repository https://github.com/python-jsonschema/jsonschema-specifications

GeeksforGeeks

geeksforgeeks.org › python › introduction-to-python-jsonschema

Introduction to Python jsonschema - GeeksforGeeks

July 23, 2025 - To install the jsonschema, we can use pip, the Python package installer.

GitHub

github.com › python-jsonschema › jsonschema

GitHub - python-jsonschema/jsonschema: An implementation of the JSON Schema specification for Python · GitHub

jsonschema is available on PyPI. You can install using pip:

Starred by 4.9K users

Forked by 611 users

Languages Python 99.8% | TypeScript 0.2%

PyPI

pypi.org › project › jsonschema-rs

jsonschema-rs · PyPI

jsonschema-rs supports CPython 3.10 through 3.14 and PyPy 3.10+. ... If you encounter linking errors when building from source on Linux (e.g., undefined symbol errors related to ring or crypto), try using the mold linker: RUSTFLAGS="-C link-arg=-fuse-ld=mold" pip install jsonschema-rs --no-binary :all:

      » pip install jsonschema-rs

Published Mar 08, 2026

Version 0.45.0

Repository https://github.com/Stranger6667/jsonschema

Homepage https://github.com/Stranger6667/jsonschema/tree/master/crates/jsonschema-py

reddit.com › r/learnpython › how to get out of this double circle?

r/learnpython on Reddit: How to get out of this double circle?

May 22, 2024 -

Sorry if my questions are basic. I don't do this (python programming) on a regular basis. Only running these commands according to a README of some repository I had to set up.

My python commands are running in two circles:

it says I need to upgrade to 24.0. I run upgrade, and it shows I'm there. Then it says I need to upgrade again.
It says I'm missing jsonschema module. I installed it, reinstall only says "equirement already satisfied". But then my program still says I'm missing the module.

How do I get out of this trap? Please help!

(mypenv) myuser-mac:myprogram myuser$ ./myproduct_generator.py --fleets-dir inventory_requests/fleets -rd inventory_requests/regions -od ~/temp/finished_myproducts

Traceback (most recent call last): 
File "/Users/myuser/Workplace/WORKDIR/repos/bootstrap-footprint/myprogram/./myproduct_generator.py", line 17, in <module> 
import jsonschema 
ModuleNotFoundError: No module named 'jsonschema'

(mypenv) myuser-mac:myprogram myuser$ pip install jsonschema 
Requirement already satisfied: jsonschema in /Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages (4.22.0) Requirement already satisfied: attrs>=22.2.0 in /Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages (from jsonschema) (23.2.0) 
Requirement already satisfied: jsonschema-specifications>=2023.03.6 in /Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages (from jsonschema) (2023.12.1) 
Requirement already satisfied: rpds-py>=0.7.1 in /Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages (from jsonschema) (0.18.1) 
Requirement already satisfied: referencing>=0.28.4 in /Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages (from jsonschema) (0.35.1)

[notice] A new release of pip available: 22.2 -> 24.0 
[notice] To update, run: python3.9 -m pip install --upgrade pip

(mypenv) myuser-mac:myprogram myuser$ pip3 -V pip 
24.0 from /Users/myuser/python-envs/mypenv/lib/python3.9/site-packages/pip (python 3.9) 

(mypenv) myuser-mac:myprogram myuser$ python3.9 -m pip install --upgrade pip 
Requirement already satisfied: pip in /Users/myuser/python-envs/mypenv/lib/python3.9/site-packages (24.0)

#If I run above commands again, it's basically a repeat.