How to remove numbers (written as digits and spelling) from a sentence?

Question

I have an input sentence of the form: This is one input sentence, this is also 1 input sentence. Together they are two sentences

I would like to omit the numbers from this sentence, be it in form of spelling or as numbers itself.

The expected output is: This is input sentence, this is also input sentence. Together they are sentences

I could create a dictionary of the numbers that I would need to omit but then that would be tedious and a bad way to do it.

Is there an easier way to do it in Python?