NameError: name 'exit' is not defined

[Vikram12301]

I am getting this error, and when I re-run, I am not getting it

[Abhinawap]

Same I got this error when running this line of code: X_train, X_test = transform(X_train, X_test, features, n_jobs=20)

[mgiovino90]

I also saw this error, but it didn't go away if I try to run multiple times.
I saw this error during this line:
new_features= open1.fit(data= x_train, label= y_train)

notebook9bf6a63127 (2).ipynb