Organising common code in django/python
There is no problem with having helpers, but I think you chose wrong naming strategy. The name of the module or package should tell you what function it performs.
In your case you should name your helpers after the job they help you do. For example, StringHelpers or UrlUtils.
Sometimes we need in auxiliary functions, classes etc.
Sometimes we put such entities into modules or packages.
Currently I have three variants:

Use helpers package or module.
Use utils package or module (like in Java).
Don't use something like it because it is anti pattern. If you have helpers then you have a application design problem.

What do you prefer?