KeyError occurs in SpliceInit

[xoi]

KeyError following occurs when I run vim 1 2 3 4 -c SpliceInit.

Error detected while processing function splice#SpliceInit:
line    2:
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/home/test/.vim/autoload/splice.py", line 13, in <module>
    import splicelib.init as splice
  File "/home/test/.vim/autoload/splicelib/init.py", line 2, in <module>
    import modes
  File "/home/test/.vim/autoload/splicelib/modes.py", line 894, in <module>
    compare = CompareMode()
  File "/home/test/.vim/autoload/splicelib/modes.py", line 512, in __init__
    self._current_buffer_first = buffers.original
  File "/home/test/.vim/autoload/splicelib/util/bufferlib.py", line 37, in original
    return Buffer(0)
  File "/home/test/.vim/autoload/splicelib/util/bufferlib.py", line 10, in __init__
    self._buffer = vim.buffers[i]
KeyError: 0
line    3:
Traceback (most recent call last):
  File "<string>", line 1, in <module>
NameError: name 'SpliceInit' is not defined

It seems to have occurred by accessing vim.buffers[0].

I suspect the impact of Patch 7.3.945.

Patch 7.3.945
Problem: Python: List of buffers is not very useful.
Solution: Make vim.buffers a map. No iterator yet. (ZyX)

ftp://ftp.vim.org/pub/vim/patches/7.3/7.3.945

In the following states,

:ls
  1 %a   "1"                            line 1
  2      "2"                            line 0
  3      "3"                            line 0
  4      "4"                            line 0

when I run the following:

python print vim.buffers[0]
python print vim.buffers[1]
python print vim.buffers[2]
python print vim.buffers[3]
python print vim.buffers[4]
python print vim.buffers[5]

It will be the following results:

Traceback (most recent call last):
  File "<string>", line 1, in <module>
KeyError: 0
<buffer 1>
<buffer 2>
<buffer 3>
<buffer 4>
Traceback (most recent call last):
  File "<string>", line 1, in <module>
KeyError: 5

Index of vim.buffers is made to 1-4 in this case.

version:

• VIM 7.3.1214
• Python 2.7.5

[xoi]

It seems like the same as #17. Error name is different, though.

[jcf]

Same thing here with the following Vim version:

VIM - Vi IMproved 7.3 (2010 Aug 15, compiled Jul  1 2013 20:47:38)
MacOS X (unix) version
Included patches: 1-1251
Compiled by Homebrew
Huge version with MacVim GUI.  Features included (+) or not (-):
+arabic          +cmdline_info    -ebcdic          +fork()          +lispindent      -mouse_jsbterm   +path_extra      +ruby            -tag_any_white   +visual          -xsmp
+autocmd         +comments        +emacs_tags      +fullscreen      +listcmds        +mouse_netterm   +perl            +scrollbind      +tcl             +visualextra     -xterm_clipboard
+balloon_eval    +conceal         +eval            -gettext         +localmap        +mouse_sgr       +persistent_undo +signs           +terminfo        +viminfo         -xterm_save
+browse          +cryptv          +ex_extra        -hangul_input    +lua             -mouse_sysmouse  +postscript      +smartindent     +termresponse    +vreplace
++builtin_terms  +cscope          +extra_search    +iconv           +menu            +mouse_urxvt     +printer         -sniff           +textobjects     +wildignore
+byte_offset     +cursorbind      +farsi           +insert_expand   +mksession       +mouse_xterm     +profile         +startuptime     +title           +wildmenu
+cindent         +cursorshape     +file_in_path    +jumplist        +modify_fname    +multi_byte      +python          +statusline      +toolbar         +windows
+clientserver    +dialog_con_gui  +find_in_path    +keymap          +mouse           +multi_lang      -python3         -sun_workshop    +transparency    +writebackup
+clipboard       +diff            +float           +langmap         +mouseshape      -mzscheme        +quickfix        +syntax          +user_commands   -X11
+cmdline_compl   +digraphs        +folding         +libcall         +mouse_dec       +netbeans_intg   +reltime         +tag_binary      +vertsplit       -xfontset
+cmdline_hist    +dnd             -footer          +linebreak       -mouse_gpm       +odbeditor       +rightleft       +tag_old_static  +virtualedit     +xim
   system vimrc file: "$VIM/vimrc"
     user vimrc file: "$HOME/.vimrc"
 2nd user vimrc file: "~/.vim/vimrc"
      user exrc file: "$HOME/.exrc"
  system gvimrc file: "$VIM/gvimrc"
    user gvimrc file: "$HOME/.gvimrc"
2nd user gvimrc file: "~/.vim/gvimrc"
    system menu file: "$VIMRUNTIME/menu.vim"
  fall-back for $VIM: "/Applications/MacVim.app/Contents/Resources/vim"
Compilation: clang -c -I. -Iproto -DHAVE_CONFIG_H -DFEAT_GUI_MACVIM -Wall -Wno-unknown-pragmas -pipe  -DMACOS_X_UNIX -no-cpp-precomp  -g -O2 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=1     -I/
System/Library/Frameworks/Tcl.framework/Headers  -D_REENTRANT=1  -D_THREAD_SAFE=1  -D_DARWIN_C_SOURCE=1
Linking: clang   -L.   -L.    -L/usr/local/lib -o Vim -framework Cocoa -framework Carbon       -lncurses -liconv -framework Cocoa  -L/usr/local/lib -llua -fstack-protector -L/usr/local/l
ib  -L/System/Library/Perl/5.12/darwin-thread-multi-2level/CORE -lperl -lm -lutil -lc -framework Python  -F/System/Library/Frameworks -framework Tcl -framework CoreFoundation -framework
Ruby