Python joint_monkey.py ImportError: libpython3.7m.so.1.0:

I have ubuntu 20.04
When I try run the example joint_monkey.py:

(rlgpu) dmitriy@dmitriy:~/isaacgym/python/examples$ python joint_monkey.py
Importing module 'gym_37' (/home/dmitriy/isaacgym/python/isaacgym/_bindings/linux-x86_64/gym_37.so)
Traceback (most recent call last):
  File "joint_monkey.py", line 19, in <module>
    from isaacgym import gymapi, gymutil
  File "/home/dmitriy/isaacgym/python/isaacgym/__init__.py", line 5, in <module>
    from isaacgym import gymapi
  File "/home/dmitriy/isaacgym/python/isaacgym/gymapi.py", line 104, in <module>
    _import_active_version()
  File "/home/dmitriy/isaacgym/python/isaacgym/gymapi.py", line 63, in _import_active_version
    module = importlib.import_module(package_path)
  File "/home/dmitriy/miniconda3/envs/rlgpu/lib/python3.7/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
ImportError: libpython3.7m.so.1.0: cannot open shared object file: No such file or directory

I improve it by run :sudo apt-get install libpython3.7, but I have this error when running:

/buildAgent/work/45f70df4210b2e3e/source/physx/src/NpScene.cpp (2869) : internal error : PhysX Internal CUDA error. Simulation can not continue!

/buildAgent/work/45f70df4210b2e3e/source/physx/src/NpScene.cpp (3175) : invalid operation : PxScene::fetchResults: fetchResults() called illegally! It must be called after advance() or simulate()

[Error] [carb.gym.plugin] Gym cuda error: an illegal memory access was encountered: ../../../source/plugins/carb/gym/impl/Gym/GymPhysX.cpp: 3362
[Error] [carb.gym.plugin] Gym cuda error: an illegal memory access was encountered: ../../../source/plugins/carb/gym/impl/Gym/GymPhysX.cpp: 3428
[Error] [carb.gym.plugin] Gym cuda error: an illegal memory access was encountered: ../../../source/plugins/carb/gym/impl/Gym/GymPhysX.cpp: 3492
[Error] [carb.gym.plugin] Gym cuda error: an illegal memory access was encountered: ../../../source/plugins/carb/gym/impl/Gym/GymPhysX.cpp: 3336

But when I run export LD_LIBRARY_PATH=/home/xyz/anaconda3/envs/rlgpu/lib program worked correct.

same for me (also in ubuntu 18.04) except after sudo apt-get install libpython3.7 i kept getting that same initial error message (…No such file or directory)