I try to read a Minecraft world with Python from the filesystem and the .mca region/anvil files using the NBT 1.4.1 module (Named Binary Tag Reader/Writer), which is supposed to read the NBT format used in Minecraft. It works fine for files such as level.dat, but throws an error for the region files such as r.0.0.mca
Edit: I am referring to the auto generated world files that minecraft stores in the .minecraft/saves/"MyWorld"/ folder. Such as the level.dat (which works), and the mca files stor