Is learning Django without initial knowledge of Python possible?
I would suggest it's possible, but definitely steepens the learning curve.  When learning a new language, I usually enjoy using it to actually do something useful rather than just writing Hello World programs.  Learning Django while learning Python at the same time might be a good way to do this.
I did learn Ruby at the same time as I learned Rails, and I did find myself having to lookup basic Ruby syntax every 30 seconds, but I eventually got the hang of it.  I found that looking at some of the weird Rails constructs pushed me into having to learn various Ruby features that I might have not run into on my own as well, so that was an advantage.
I would say give it a shot, and if you find the whole thing overwhelming, then back off a bit and focus on some command line scripts or other simple programs.
I am coming from procedural PHP with fair amount of knowledge on it. I want to learn Django but I don't have initial knowledge of Python. Can I learn Django at the same time also learning Python? Thank you so much!