Here is the post for archival purposes Author bamfbaus Content So I had some coins stored in my bitcoin core wallet . I wanted to store them in armory so I sent them to an address there . Later I figured it was too much to handle so I sent the coins to an address I created in electrum . Now my coins are watch only in electrum . I have the original bitcoin wallet from before I started this whole thing . And the blockchain was deleted from my laptop so I have to resync now . What do I do ? How can I recoup my coins ? Any help will be greatly appreciated and I ' ll tip of course . <| sep |> that would be because old C code is still compileable with the new compilers and will run exactly the same save some edge cases because C is weird that way . Py 3 is a new runtime meaning old Py 2 code won ' t run on it unless written in a specific way . this in one of the few valid criticisms of Py 3 .