You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.
electrum-bch was reported malicious
OSV:MAL-2025-47762 - Malicious code in electrum-bch (PyPI)

electrum-bch
0.3.7

This version was deleted from PyPI around 2025-08-25. Installing fails with:
$ pip3 install electrum-bch==0.3.7 ERROR: Could not find a version that satisfies the requirement electrum-bch==0.3.7
View other deleted versions of electrum-bch

Install through StableBuild

You can install this package from StableBuild's PyPI snapshots from before the version was deleted:
pip3 install \ -i https://YOUR_API_KEY.pypimirror.stablebuild.com/2025-08-24/ \ electrum-bch==0.3.7
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Or, download files manually

And install manually via pip:
electrum_bch-0.3.7-py3-none-any.whl (841.2KB)
electrum_bch-0.3.7.tar.gz (750.6KB)