Well, it would be possible to put Python in an iOS app, actually, or other non-C-related languages like Lua or Ruby. I've never done anything like that, but from what I understand, it would basically involve including and compiling the Python runtime code - that is, the C code for the application which reads and interprets the Python code - in your app, then writing an Objective-C wrapper which throws a Python file into that runtime and reads whatever the results may be; either form standard output, or by directly accessing the memory structures and such that Python is using, if you need more complex integration. (This is basically what something like
RubyMotion would be doing, but I couldn't find a Python equivalent after a quick search.)
Eventually you can get to a point where, yes, you can just dump some Python code into a file and manipulate the behavior of your app through that, but yeah, starting from scratch, I'm afraid it's not going to be that easy.