Merge pull request #164 from pappasam/debug-to-stderr

Debug to stderr

CHANGELOG.md

@@ -4,6 +4,12 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## 0.34.5
+
+### Fixed
+
+- InitializationOption `jediSettings.debug` now writes to stderr, not stdout. stdout broke the language server.
+
 ## 0.34.4
 
 ### Added

jedi_language_server/jedi_utils.py

@@ -3,6 +3,7 @@
 Translates pygls types back and forth with Jedi
 """
 
+import sys
 from inspect import Parameter
 from typing import Dict, List, Optional
 
@@ -33,6 +34,17 @@
 from .type_map import get_lsp_completion_type, get_lsp_symbol_type
 
 
+def _jedi_debug_function(
+ color: str, # pylint: disable=unused-argument
+ str_out: str,
+) -> None:
+ """Jedi debugging function that prints to stderr.
+
+ Simple for now, just want it to work.
+ """
+ print(str_out, file=sys.stderr)
+
+
 def set_jedi_settings( # pylint: disable=invalid-name
  initialization_options: InitializationOptions,
 ) -> None:
@@ -48,7 +60,7 @@ def set_jedi_settings( # pylint: disable=invalid-name
  initialization_options.jedi_settings.case_insensitive_completion
  )
  if initialization_options.jedi_settings.debug:
- jedi.set_debug_function()
+ jedi.set_debug_function(func_cb=_jedi_debug_function)
 
 
 def script(project: Optional[Project], document: Document) -> Script: