py.test plugin for using the same _trial_temp working directory as trial
Install the plugin with pip install pytest-trialtemp and it will be used automatically when tests are run.
To disable it for a particular run, use py.test -p no:trialtemp [...] to run your tests. See pytest's documentation for further options.
I frequently use py.test to run Twisted tests written using trial. This works pretty well on its own, except trial's temporary directory infrastructure assumes the working directory during test runs is ./_trial_temp or something similar.
In order to avoid littering my project root with annoying test-created temporary directories, I wrote this little plugin.