Merge remote-tracking branch 'origin' into support-dataclass-transform

* origin:
  Don't remove `sys.path[0]`.
  perf: improve performance by replacing list to set
  Explicit sphinx config path

.readthedocs.yml

@@ -10,6 +10,9 @@ python:
 submodules:
   include: all
 
+sphinx:
+  configuration: docs/conf.py
+
 build:
   os: ubuntu-22.04
   tools:

jedi/inference/compiled/subprocess/__main__.py

@@ -3,10 +3,6 @@ import sys
 from importlib.abc import MetaPathFinder
 from importlib.machinery import PathFinder
 
-# Remove the first entry, because it's simply a directory entry that equals
-# this directory.
-del sys.path[0]
-
 
 def _get_paths():
     # Get the path to jedi.

jedi/inference/imports.py

@@ -480,7 +480,7 @@ def _load_builtin_module(inference_state, import_names=None, sys_path=None):
     if sys_path is None:
         sys_path = inference_state.get_sys_path()
     if not project._load_unsafe_extensions:
-        safe_paths = project._get_base_sys_path(inference_state)
+        safe_paths = set(project._get_base_sys_path(inference_state))
         sys_path = [p for p in sys_path if p in safe_paths]
 
     dotted_name = '.'.join(import_names)