Comment 2 for bug 1520736

Yes. It uses python 2.7. I tried editing the file /usr/local/bin/bzr (with sudo) first line #!/usr/bin/python to #!/usr/bin/python2.6, which has been the fix in the past, from Lion to Yosemite, but it doesn't work, and apparently, not permitted anymore.

A colleague informed me that Apple implemented rootless, or SIP (https://en.wikipedia.org/wiki/System_Integrity_Protection), which may be the reason for the app no longer working. It was suggested that I completely disable SIP requiring advanced tech knowledge, at my own risk, and with no guarantee that it'll work.

However, I don't want to lessen security if it's not necessary. Any help would be greatly appreciated. I'll keep a lookout for the new installers.