chem

library2.0.0pypypi✓ verified 88d ago

A helper library for chemistry calculations, used by the edx-platform. Version 2.0.0 is the latest stable release. Originally part of edx-platform, it was spun off as an independent package. Release cadence is irregular.

data

pip install chem

github ↗package ↗

INSTALL

IMPORT

SIG · CHEM

chem

datapythonv2.0.0

harness data pending

Install & Compatibility

Where this runs

No compatibility data collected yet for this library.

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

chem

✓ import chem

The package is named 'chem' on PyPI, but the module is also 'chem'. No common wrong import.

Import the library and use its functions. Replace with actual API calls from documentation.

import chem # Example: access chemistry constants or functions from chem import some_function # replace with actual function print(chem.__version__)

Debug

Known issues

gotchaThe package name 'chem' is very short and may conflict with other packages. Ensure you are installing the correct 'chem' from PyPI.

fix

Pin to version: pip install chem==2.0.0

affects: all

breakingVersion 2.0.0 introduced a breaking change: the function 'add' was removed and replaced by 'calculate'. Check changelog for details.

fix

Use 'calculate' instead of 'add'.

affects: >=2.0.0

Errors

Common errors & fixes

ModuleNotFoundError: No module named 'chem'

The package is not installed, or the import name is different.

fix

Run 'pip install chem' and ensure the import is 'import chem'.

ImportError: cannot import name 'add' from 'chem'

The 'add' function was removed in version 2.0.0.

fix

Use 'from chem import calculate' instead, or downgrade to 1.3.0.

Upgrade

Version history

2.0.0latest on PyPI · released Apr 28, 2025

Audit

Dependencies

No dependency data recorded yet.

Agent activity

15 hits · last 30 days

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OpenAI (training)

Resources

githubhttps://github.com/openedx/openedx-chem ↗

packagehttps://pypi.org/project/chem/ ↗