Errors in old Python notebooks and how to fix them

Python 2 · pandas · NumPy

Notebooks from courses, books and Kaggle often stop with the same few errors: the code was written for Python 2 or for an older pandas or NumPy. Each page says why the error happens, shows the fix and shows how NoteRun fixes it in one tap.

• AttributeError: 'DataFrame' object has no attribute 'ix' pandas removed .ix in 1.0; .loc replaces it.
• SyntaxError: Missing parentheses in call to 'print'. Did you mean print(...)? Python 2’s print statement; Python 3 needs print(…).
• AttributeError: module 'numpy' has no attribute 'float' NumPy 1.24 removed np.float; Python’s float replaces it.

NoteRun also fixes Colab paths (/content/…), xrange, iteritems, sklearn.cross_validation and more, and shows every change before it makes it.