Termdbg
Termdbg is a terminal debugger plugin for vim 8.1+ and neovim 0.3.6+. Currently, termdbg supports pdb, ipdb, lldb, dlv(go Delve). If you need gdb support, try termdebug (:h termdebug)
Commands
-  
:TNext: Step over -  
:TStep: Step in -  
:TFinish: Return from current function -  
:TContinue: Continue -  
:TLocateCursor: Locate cursor to running line -  
:TToggleBreak: Toggle breakpoint in current line -  
:TSendCommand: Send command to debugger