Deriving an ECDSA uncompressed public key from a compressed one

[clara-sininen]

Hey everyone!
I'm currently working on a project where I want to derive an uncompressed Bitcoin ECDSA public key from a compressed one (I have actually posted my problem on Stack Overfow https://stackoverflow.com/questions/43629265/deriving-an-ecdsa-uncompressed-public-key-from-a-compressed-one ).
Have you ever tried (succeded in?) doing so?

Thank you!

[achow101]

There are libraries (e.g. python-bitcoinlib) that do this stuff for you so you could use those instead of figuring out the calculation yourself.