Issue with Post-Receive Hook and PATH Corruption after Upgrading to Trac 1.5.4

[Jacques]

I recently upgraded my Trac standalone-installation from version 1.4.3 to 1.5.4 and encountered an unexpected issue with the post-receive hook. I wanted to share my experience here in case others have come across a similar situation or have any insights to offer.

After the upgrade, I noticed that the post-receive hook, which was working seamlessly in version 1.4.3, seems to be causing PATH corruption during the process of adding, committing, and pushing changes. This corruption prevents the committed changes from being available in the ticket as expected.

1. Confirmed the correct version of trac-admin within my active Python environment (Python 3) before performing the add, commit, and push.
2. Observed that during these steps, my PATH got corrupted, leading to the malfunction of the post-receive hook.
3. Even manually setting the PATH to the correct one before the push did not result in an active link in the ticket, indicating that the changeset was not being integrated as it should be.

I would greatly appreciate any insights, suggestions, or guidance from the community regarding this issue. If anyone else has encountered a similar problem after upgrading to Trac 1.5.4 or has any ideas on how to resolve this, your input would be invaluable.

Additionally, if there have been any updates or changes in Trac 1.5.4 related to post-receive hooks or changeset handling that I might have missed, I'd be grateful for that information as well.

Jacques