I would suggest that this is possible, but definitely twists the learning curve. When I learn a new language, I usually like to use it to actually do something useful, and not just write Hello World programs. Learning Django while learning Python can be a good way to do this.
I studied Ruby at the same time that I learned Rails, and I had to look for the basic Ruby syntax every 30 seconds, but in the end I hung it. I found that looking at some of the weird Rails constructs prompted me to explore various Ruby functions that I might not have performed on my own either, so that was an advantage.
I would say give it a chance, and if you find it all overwhelming, sit back a bit and focus on some command line scripts or other simple programs.
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