There are instances where I have multiple axes in axes[0], while other times there is just one. To iterate over them, I use the following approach:
for ax,_x in [(axes[0], X[0])] if len(X)==1 else zip(axes[0],X):Is there a preferred or more common way to accomplish this?
Instead of constantly checking for permission with conditional statements, it's generally better to just iterate and handle exceptions when necessary using a try-except block.
It's important to note, as others have pointed out, that creating different cases based on whether X is a list of size 1 can be unnecessary since even a single-element list is iterable. When using the zip function, it will stop at the shortest iterable:
>>> l = [1, 2, 3]
>>> y = [1, 2]
>>> list(zip(l, y))
[(1, 1), (2, 2)]
If you need to work with all values from the longer iterable while providing defaults for missing values in the shorter one, consider using zip_longest from itertools along with an appropriate fillvalue:
>>> from itertools import zip_longest
>>> list(zip_longest(l, y, fillvalue=0))
[(1, 1), (2, 2), (3, 0)]
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