The 0.12.0 version of s3contents is available on the PyPI official website, but the 0.12.0 version cannot be found on the official PyPI mirror source (https://pypi.org/simple/), so this version cannot be installed using pip.
pip install s3contents==0.12.0 --index-url=https://pypi.org/simple/
Looking in indexes: https://pypi.org/simple/
ERROR: Ignored the following versions that require a different python version: 0.12.0 Requires-Python >=3.12
ERROR: Could not find a version that satisfies the requirement s3contents==0.12.0 (from versions: 0.1.0, 0.1.1, 0.1.2, 0.1.3, 0.1.4, 0.1.5, 0.1.7, 0.1.8, 0.1.9, 0.1.10, 0.1.11, 0.1.12, 0.1.13, 0.3.0, 0.3.1, 0.3.2, 0.3.3, 0.4.0, 0.5.0, 0.5.1, 0.6.0, 0.6.1, 0.6.2, 0.6.3, 0.7.0, 0.9.0, 0.10.0, 0.10.1, 0.11.0, 0.11.1, 0.11.2)
The 0.12.0 version of s3contents is available on the PyPI official website, but the 0.12.0 version cannot be found on the official PyPI mirror source (https://pypi.org/simple/), so this version cannot be installed using pip.