vscode对isaac lab开发时包不能正常导入的问题

在settings.json 的 "python.analysis.extraPaths":下加

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        "/home/tl/IsaacLab/source/isaaclab_mimic",
        "/home/tl/IsaacLab/source/isaaclab",
        "/home/tl/IsaacLab/source/isaaclab_assets",
        "/home/tl/IsaacLab/source/isaaclab_rl",

在isaac lab 使用的过程中发现一个十分奇葩的bug

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2026-03-11T10:21:24Z [2,828ms] [Error] [carb.scripting-python.plugin] ModuleNotFoundError: No module named 'typing_extensions'

At:
  /home/tl/isaacsim/exts/omni.pip.cloud/omni/pip/cloud/__init__.py(25): on_startup
  /home/tl/isaacsim/kit/kernel/py/omni/ext/_impl/_internal.py(173): _startup_ext
  /home/tl/isaacsim/kit/kernel/py/carb/profiler/__init__.py(101): wrapper
  /home/tl/isaacsim/kit/kernel/py/omni/ext/_impl/_internal.py(233): startup
  /home/tl/isaacsim/kit/kernel/py/omni/ext/_impl/_internal.py(337): startup_extension
  PythonExtension.cpp::startup()(2): <module>

2026-03-11T10:21:24Z [2,828ms] [Error] [omni.ext.plugin] [ext: omni.pip.cloud-1.3.6] Failed to startup python extension.

这个bug的含义是找不到 typing_extensions 这个包

但是我明明确认这包就在我的虚拟环境下

使用虚拟环境导入也是正确不报错的，那么问题出在哪里呢？

然后就会引发一连串的雪崩，诸如此类的报错

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2026-03-11T10:28:27Z [11,985ms] [Error] [omni.ext._impl.custom_importer] Failed to import python module isaacsim.util.camera_inspector. Error: No module named 'typing_extensions'. Traceback:
Traceback (most recent call last):
  File "/home/tl/isaacsim/kit/kernel/py/omni/ext/_impl/custom_importer.py", line 85, in import_module
    return importlib.import_module(name)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/tl/isaacsim/kit/python/lib/python3.11/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<frozen importlib._bootstrap>", line 1204, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1176, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1147, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 690, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 940, in exec_module
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "/home/tl/isaacsim/exts/isaacsim.util.camera_inspector/isaacsim/util/camera_inspector/__init__.py", line 16, in <module>
    from .extension import *
  File "/home/tl/isaacsim/exts/isaacsim.util.camera_inspector/isaacsim/util/camera_inspector/extension.py", line 26, in <module>
    from isaacsim.core.utils.prims import is_prim_path_valid
  File "/home/tl/isaacsim/exts/isaacsim.core.utils/isaacsim/core/utils/prims.py", line 31, in <module>
    from isaacsim.core.utils.types import SDF_type_to_Gf
  File "/home/tl/isaacsim/exts/isaacsim.core.utils/isaacsim/core/utils/types.py", line 18, in <module>
    import torch
  File "/home/tl/isaacsim/exts/omni.isaac.ml_archive/pip_prebundle/torch/__init__.py", line 34, in <module>
    from typing_extensions import ParamSpec as _ParamSpec
ModuleNotFoundError: No module named 'typing_extensions'

2026-03-11T10:28:27Z [11,985ms] [Error] [carb.scripting-python.plugin] Exception: Extension python module: 'isaacsim.util.camera_inspector' in '/home/tl/isaacsim/exts/isaacsim.util.camera_inspector' failed to load.

At:
  /home/tl/isaacsim/kit/kernel/py/omni/ext/_impl/_internal.py(222): startup
  /home/tl/isaacsim/kit/kernel/py/omni/ext/_impl/_internal.py(337): startup_extension
  PythonExtension.cpp::startup()(2): <module>

2026-03-11T10:28:27Z [11,985ms] [Error] [omni.ext.plugin] [ext: isaacsim.util.camera_inspector-1.0.15] Failed to startup python extension.

是不是它用错解释器了？

打开/home/tl/isaacsim/exts/omni.pip.cloud/omni/pip/cloud/init .py

定位到import typing_extensions

在它的上面添加

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import sys
print(f"用的解释器是 ---------------------{sys.executable} -------------")

发现用的确实是我虚拟环境下的解释器，

那么是不是没有正确地去搜素包呢

于是再次添加

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print(f"当前模块搜索路径：{sys.path}")

发现确实没有去我虚拟环境下去搜索这些包

但是为什么用了我虚拟环境下的解释器名，但是却不去我虚拟环境里去搜索包呢？？？？？？？？？？

妥妥的渣男

反正解决办法如下

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# ========== 核心修复：强制插入虚拟环境路径 ==========
VENV_SITE_PACKAGES = "/home/tl/anaconda3/envs/acan_issaclab/lib/python3.11/site-packages"
# 插入到 sys.path 第一个位置（最高优先级）
if VENV_SITE_PACKAGES not in sys.path:
    sys.path.insert(0, VENV_SITE_PACKAGES)
# ========== 修复结束 ==========