How to get image height using Python

[Shaafi]

I want to expand the height of a picture in python......Any suggestions?

I want to define a function that takes a picture and an integer. The integer value determines how many times taller the expanded picture is than the original. eg a value of 2 returns a picture that is twice as tall

[bvdet]

I have never done it, but PIL Image method transform() can be used to scale, translate, rotate and shear an image, returning a new image.