Invalid syntax in decorators.py

[PoCk3T]

Describe the bug See https://github.com/joosthoeks/jhTAlib/commit/8b434ec70a1cde608e6473e67a794f327ce5fe36#commitcomment-38003743

It seems like this commit is bringing a new file decorators.py which doesn't run on Python3.5 : _File "/root/venv/lib/python3.5/site-packages/jhtalib/decorators.py", line 20 print(f"Finished {func.name!r} in {runtime:.4f} secs") ^ SyntaxError: invalid syntax

To Reproduce Steps to reproduce the behavior:

1. Update jhTAlib to latest version
2. With Python3.5 : import jhtalib as jhta
3. Get the error

Expected behavior No SyntaxError on import jhtalib as jhta

Additional context Before upgrading jhTAlib, and without any change to my own code, all was working fine

[joosthoeks]

I'm running Python 3.6.9 without any errors. Is it possible too upgrade Python to the latest version and run it again?

If not. Can you post your code what's generate this error?

[PoCk3T]

I unfortunately can't upgrade to Python3.6.9 for compatibility purposes

I tried to create a minimal Docker environment where this issue would reproduce, based on the same Python 3.5.2 and all other libraries I use, I could reproduce the issue with a simple "import jhtalib as jhta", no other code needed

Steps to reproduce:

1. Download Dockerfile here: https://justpaste.it/5s51d
2. docker build -f Dockerfile -t jhtalibbugrepro --no-cache .
3. docker run -it jhtalibbugrepro /bin/bash
4. python
5. import jhtalib as jhta
6. ==> observe that it works fine on jhTAlib==20200211.0
7. python -m pip install jhtalib --upgrade
8. python
9. import jhtalib as jhta
10. ==> observe that it doesn't work anymore on latest jhTAlib

[joosthoeks]

Fixed: https://github.com/joosthoeks/jhTAlib/commit/6db3b5e094973936660616fbb0ede3547645d008

[PoCk3T]

Wow, less than 20 hours after I opened the issue, well done :) I will give it a try!

Thank you for that, and thank you for the whole library in general, tremendously helpful Keep on the good work !