tancredicarli

Hello, thank you for the fast answer. I did not notice that I did not included the test.py. Here it is: ``` if __name__ == "__main__": filename='ex2.txt' print ('open filename=...

Here is the output of ``` python -m pip freeze absl-py==0.13.0 altair==4.1.0 anyio==3.3.0 argon2-cffi==20.1.0 astunparse==1.6.3 attrs==21.2.0 awkward0==0.15.5 Babel==2.9.1 backcall==0.2.0 bleach==4.0.0 cachetools==4.2.2 certifi==2021.5.30 cffi==1.14.6 charset-normalizer==2.0.4 click==7.1.2 cloudpickle==1.3.0 cycler==0.10.0 debugpy==1.4.1 decorator==5.0.9 defusedxml==0.7.1...

Hello @alexander-held thank you very for your help. There was indeed some misunderstanding from my side about the meaning of the modifiers. I corrected this [exupdatederrorconvention.txt](https://github.com/scikit-hep/pyhf/files/7300529/exupdatederrorconvention.txt) However, I still have...