Launching MacVim with pathfinder.vim installed complains about g:python3_host_prog not being found:
Error detected while processing /Users/itai/.dotfiles/vim/.vim/bundle/pathfinder.vim/plugin/main.vim:
line 27:
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/Users/itai/.dotfiles/vim/.vim/bundle/pathfinder.vim/pathfinder/client/plugin.py", line 15, in __init__
self.client = Client()
File "/Users/itai/.dotfiles/vim/.vim/bundle/pathfinder.vim/pathfinder/client/client.py", line 24, in __init__
self.open()
File "/Users/itai/.dotfiles/vim/.vim/bundle/pathfinder.vim/pathfinder/client/client.py", line 34, in open
self._build_server_cmd(), stdout=subprocess.PIPE, stderr=subprocess.PIPE
File "/Users/itai/.dotfiles/vim/.vim/bundle/pathfinder.vim/pathfinder/client/client.py", line 43, in _build_server_cmd
python3_host_prog = vim.eval("g:python3_host_prog")
vim.error: Vim:E121: Undefined variable: g:python3_host_prog
Press ENTER or type command to continue
Interestingly, this line is only supposed to be hit if nvim is present:
def _build_server_cmd(self):
"""Build the command used to launch the server Vim."""
if vim.eval("has('nvim')"):
python3_host_prog = vim.eval("g:python3_host_prog")
options = [
"--headless",
"--cmd",
f"let g:python3_host_prog='{python3_host_prog}'",
]
else:
options = ["-v", "--not-a-term"]However, I'm not in Neovim, and both :echo has('nvim') and :py3 print(vim.eval("has('nvim')")) print 0. I'm not sure what could cause vim.eval("has('nvim')") to evaluate to a truthy value especially since executing the same test manually doesn't replicate that value.
It's not exactly g:python3_host_prog itself that's an issue, because even if I manually define it, pathfinder.vim is setting options in order to launch a Neovim instance, and regular vim doesn't recognize --headless. Any idea what might be causing this? Would it make sense to inspect v:progpath instead of has('nvim') because that's what eventually gets launched anyway? (Changing the condition to if vim.eval("has('nvim')" == 1: resolves the issue of course, but this seems hacky since 0 should be falsy anyway, right?)
Vim version (expand for features):
VIM - Vi IMproved 8.2 (2019 Dec 12, compiled Dec 3 2020 11:33:19)
macOS version
Included patches: 1-1719
Compiled by Homebrew
Huge version with MacVim GUI. Features included (+) or not (-):
+acl +file_in_path -mouse_sysmouse -tag_old_static
+arabic +find_in_path +mouse_urxvt -tag_any_white
+autocmd +float +mouse_xterm +tcl
+autochdir +folding +multi_byte +termguicolors
-autoservername -footer +multi_lang +terminal
+balloon_eval +fork() -mzscheme +terminfo
+balloon_eval_term +fullscreen +netbeans_intg +termresponse
+browse +gettext +num64 +textobjects
++builtin_terms -hangul_input +odbeditor +textprop
+byte_offset +iconv +packages +timers
+channel +insert_expand +path_extra +title
+cindent +ipv6 +perl +toolbar
+clientserver +job +persistent_undo +transparency
+clipboard +jumplist +popupwin +user_commands
+cmdline_compl +keymap +postscript +vartabs
+cmdline_hist +lambda +printer +vertsplit
+cmdline_info +langmap +profile +virtualedit
+comments +libcall -python +visual
+conceal +linebreak +python3 +visualextra
+cryptv +lispindent +quickfix +viminfo
+cscope +listcmds +reltime +vreplace
+cursorbind +localmap +rightleft +wildignore
+cursorshape +lua +ruby +wildmenu
+dialog_con_gui +menu +scrollbind +windows
+diff +mksession +signs +writebackup
+digraphs +modify_fname +smartindent -X11
+dnd +mouse -sound -xfontset
-ebcdic +mouseshape +spell +xim
+emacs_tags +mouse_dec +startuptime -xpm
+eval -mouse_gpm +statusline -xsmp
+ex_extra -mouse_jsbterm -sun_workshop -xterm_clipboard
+extra_search +mouse_netterm +syntax -xterm_save
-farsi +mouse_sgr +tag_binary
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: "$HOME/.gvimrc"
2nd user gvimrc file: "~/.vim/gvimrc"
defaults file: "$VIMRUNTIME/defaults.vim"
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 -DMACOS_X_DARWIN -g -O2 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=1
Linking: clang -L. -fstack-protector-strong -L/Users/itai/Homebrew/lib -L/Users/itai/Homebrew/opt/libyaml/lib -L/Users/itai/Homebrew/opt/openssl@1.1/lib -L/Users/itai/Homebrew/opt/readline/lib -L. -fstack-protector-strong -L/Users/itai/Homebrew/lib -L/Users/itai/Homebrew/opt/libyaml/lib -L/Users/itai/Homebrew/opt/openssl@1.1/lib -L/Users/itai/Homebrew/opt/readline/lib -L/Users/itai/Homebrew/lib -o Vim -framework Cocoa -framework Carbon -lm -lncurses -liconv /Users/itai/Homebrew/lib/libintl.a -framework AppKit -L/Users/itai/Homebrew/opt/lua/lib -llua5.4 -fstack-protector-strong -L/System/Library/Perl/5.28/darwin-thread-multi-2level/CORE -lperl -L/Users/itai/Homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/lib/python3.9/config-3.9-darwin -lpython3.9 -lintl -framework CoreFoundation -F/System/Library/Frameworks -framework Tcl -framework CoreFoundation -lruby.2.7
Launching MacVim with pathfinder.vim installed complains about
g:python3_host_prognot being found:Interestingly, this line is only supposed to be hit if
nvimis present:However, I'm not in Neovim, and both
:echo has('nvim')and:py3 print(vim.eval("has('nvim')"))print0. I'm not sure what could causevim.eval("has('nvim')")to evaluate to a truthy value especially since executing the same test manually doesn't replicate that value.It's not exactly
g:python3_host_progitself that's an issue, because even if I manually define it, pathfinder.vim is setting options in order to launch a Neovim instance, and regular vim doesn't recognize--headless. Any idea what might be causing this? Would it make sense to inspectv:progpathinstead ofhas('nvim')because that's what eventually gets launched anyway? (Changing the condition toif vim.eval("has('nvim')" == 1:resolves the issue of course, but this seems hacky since0should be falsy anyway, right?)Vim version (expand for features):