opentelemetry-instrument fails to load flask instrumentaiton if werkzeug==3.0.0

[aleuyX]

Steps to reproduce
Use opentelemetry-instrument command to instrument a flask application (flask<3)

What is the expected behavior?
Instrumentation works

What is the actual behavior?
Instrumentation does not work, and no error is shown in the console

Additional context
I had to use breakpoints to inspect instrumentation loading, found that the instrumentation wants
werkzeug<3.0.0 when I have werkzeug==3.0.0

I was following opentelemetry flask instrumentation tutorial which asks for flask<3, the latest version installed by pip is flask==2.3.3 which requires Werkzeug >= 2.3.7, currently pip will install Werkzeug==3.0.0 which leads to this issue.

As the logs of the instrumentation are muted the dependency error is not shown, werkzeug version was pinned here #1980

[antymijaljevic]

Yes, confirming this
@aleuyX True. I made it work properly only with Flask==2.3.3 and Werkzeug==2.3.7
Hopefully the team will fix the bug so that we can use Flask 3.

[philipcwhite]

I had the same issues. It looks like there is a pull request pending to fix this. #2013