jedi: cache environments

- Large performance improvement on Windows
- Bump to 0.0.31

Author: smathot

pyqt_code_editor/__init__.py

@@ -2,4 +2,4 @@
 
 from ._settings import settings
 
-__version__ = '0.0.30'
+__version__ = '0.0.31'

pyqt_code_editor/worker/providers/jedi.py

@@ -4,6 +4,7 @@
 from .. import settings
 
 logger = logging.getLogger(__name__)
+env_cache = {}
 
 
 def _signature_to_html(signature) -> str:
@@ -42,7 +43,11 @@ def _prepare_jedi_script(code: str, cursor_position: int, path: str | None,
              path, line_no, column_no)
     # We explicitly indicate that the environment is safe, because we know that
     # they come from the app itself
-    env = jedi.create_environment(env_path, safe=False) if env_path else None
+    if env_path not in env_cache:        
+        env = jedi.create_environment(env_path, safe=False) if env_path else None
+        env_cache[env_path] = env
+    else:
+        env = env_cache[env_path]
     script = jedi.Script(code, path=path, environment=env)
     return script, line_no, column_no