Excercise 1 train_val_split fails with error 'There was a problem compiling the code from your notebook, please check that you saved before submitting. Details: 'NoneType' object is not iterable'

[Deepti_Prasad]

the error is train_val split or the submission grader provide that general error information to all grade functions?

you can rather post screenshot of the error or your grade output with show grader output than posting grade function codes as it is against community guidelines.

if that error information was in general for all grade functions, then refer the linked post to debug your codes

C4W1 Assignment compiling error resulting in 0 points

hi @edmos7 When you do now correction please make sure to get a fresh copy of assignment and only write codes between assigned markers ###START AND END CODE HERE### and making sure not to delete the already given instructions and do not add your own way of writing the codes. You suppose to only replace None placed between the Markers ###START AND END CODE HERE### without editing the already given instructions or part of codes already given to you when you first open the assignment notebook. By…