[BUG]: ddtrace 3.18.0 breaks python 3.9 with FileNotFoundError: [Errno 2] No usable temporary directory found error

[jonflashFD]

Tracer Version(s)

3.18.0

Python Version(s)

3.9.22

Pip Version(s)

23.0.1

Bug Report

After updating to 3.18.0 yesterday, our application no longer ran, throwing the following error at startup:

FileNotFoundError: [Errno 2] No usable temporary directory found in ['/tmp', '/var/tmp', '/usr/tmp', '/app']

The Python and ddtrace versions are shown below. Downgrading our ddtrace to 3.17 fixed the issue for us for now.

Broken version:

Python 3.9.22 (main, Apr  9 2025, 18:21:49)
[GCC 13.2.1 20240309] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import ddtrace
>>> ddtrace.__version__
'3.18.0'

Working version:

Python 3.9.22 (main, Apr  9 2025, 18:21:49)
[GCC 13.2.1 20240309] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import ddtrace
>>> ddtrace.__version__
'3.17.2'

Reproduction Code

No code changes related

Error Logs

FileNotFoundError: [Errno 2] No usable temporary directory found in ['/tmp', '/var/tmp', '/usr/tmp', '/app']

Libraries in Use

No response

Operating System

alpine3.20