nvim: Refactor py environment detection function

nvim/.config/nvim/after/ftplugin/quarto.lua

@@ -1,8 +1,11 @@
 -- Start quarto session
 local startsession = function(file, args)
-	local path, _ = require("util").get_python_venv()
-	vim.g["python3_host_prog"] = path
 	file = file or "/tmp/jupyter-magma-session.json"
+	local path = require("util").get_python_venv()
+	vim.g["python3_host_prog"] = path
+
+	if vim.fn.executable('jupyter-console') ~= 1 then return end
+
 	if args then
 		file = args[0]
 	end

nvim/.config/nvim/lua/util/pyenv.lua

@@ -1,41 +1,32 @@
-local util = require("lspconfig/util")
+local util = require("lspconfig.util")
 local path = util.path
 local T = {}
 local exepath = vim.fn.exepath
 
-local path_sep = function()
-	local is_win = vim.loop.os_uname().sysname:find("Windows")
-	if is_win then
-		return "\\"
-	else
-		return "/"
-	end
-end
-
 -- from https://github.com/ray-x/navigator.lua/issues/247#issue-1465308677
 T.get_path = function(workspace)
 	-- Use activated virtualenv.
 	if vim.env.VIRTUAL_ENV then
-		return path.join(vim.env.VIRTUAL_ENV, "bin", "python"), "virtual env"
+		return path.join(vim.env.VIRTUAL_ENV, "bin", "python")
 	end
 
 	-- Find and use virtualenv in workspace directory.
 	for _, pattern in ipairs({ "*", ".*" }) do
 		local match = vim.fn.glob(path.join(workspace, pattern, "pyvenv.cfg"))
-		local py = "bin" .. path_sep() .. "python"
 		if match ~= "" then
+		    local py = path.join("bin", "python")
 			match = string.gsub(match, "pyvenv.cfg", py)
-			return match, string.format("venv base folder: %s", match)
+			return match
 		end
 		match = vim.fn.glob(path.join(workspace, pattern, "poetry.lock"))
 		if match ~= "" then
 			local venv_base_folder = vim.fn.trim(vim.fn.system("poetry env info -p"))
-			return path.join(venv_base_folder, "bin", "python"), string.format("venv base folder: %s", venv_base_folder)
+			return path.join(venv_base_folder, "bin", "python")
 		end
 	end
 
 	-- Fallback to system Python.
-	return exepath("python3") or exepath("python") or "python", "fallback to system python path"
+	return exepath("python3") or exepath("python") or "python"
 end
 
 return T