a different question: can you earn a living with *just* python?

[John Salerno]

It's a nice thought that a person can earn a living programming with 
Python, which is fun enough to use just for its own sake. But for 
someone like me (i.e. no programming experience) it's always a little 
disheartening to see that most (if not all) job descriptions that ask 
for Python still require some C/C++ or other language knowledge. I 
suppose this isn't an issue if you studied CS in college, because you 
would have been exposed to many languages.

But what if you are an expert Python program and have zero clue about 
other languages? Can you still earn a living that way, or do most/all 
companies require multiple language proficiency?

(I suppose this isn't exactly a Python problem, either. I'm sure even 
companies that don't use Python still use multiple languages. Maybe it 
isn't a good idea to focus entirely on a single language, depending on 
the job at hand.)