Is rewriting a PHP app into Python a productive step?
Is your aim purely to improve the applications, or is it that you want to learn/work with Python?
If it's the first, I would say you should stick with PHP, since you already know that.
I have some old apps written in PHP that I'm thinking of converting to Python - both are websites that started as simple static html, then progressed to PHP and now include blogs with admin areas, rss etc. I'm thinking of rewriting them in Python to improve maintainability as well as to take advantage of my increase in experience to write things more robustly.
Is this worth the effort?