$ pip install gym[mujoco]
Requirement already satisfied: gym[mujoco] in c:\users\esmail\appdata\local\programs\python\python311\lib\site-packages (0.26.2)
Requirement already satisfied: numpy>=1.18.0 in c:\users\esmail\appdata\local\programs\python\python311\lib\site-packages (from gym[mujoco]) (1.24.3)
Requirement already satisfied: cloudpickle>=1.2.0 in c:\users\esmail\appdata\local\programs\python\python311\lib\site-packages (from gym[mujoco]) (3.0.0)
Requirement already satisfied: gym-notices>=0.0.4 in c:\users\esmail\appdata\local\programs\python\python311\lib\site-packages (from gym[mujoco]) (0.0.8)
Collecting mujoco==2.2 (from gym[mujoco])
  Using cached mujoco-2.2.0.tar.gz (138 kB)
  Preparing metadata (setup.py) ... done
Collecting imageio>=2.14.1 (from gym[mujoco])
  Using cached imageio-2.34.2-py3-none-any.whl.metadata (4.9 kB)
Requirement already satisfied: absl-py in c:\users\esmail\appdata\local\programs\python\python311\lib\site-packages (from mujoco==2.2->gym[mujoco]) (2.0.0)
Requirement already satisfied: glfw in c:\users\esmail\appdata\local\programs\python\python311\lib\site-packages (from mujoco==2.2->gym[mujoco]) (2.7.0)
Requirement already satisfied: pyopengl in c:\users\esmail\appdata\local\programs\python\python311\lib\site-packages (from mujoco==2.2->gym[mujoco]) (3.1.7)
Requirement already satisfied: pillow>=8.3.2 in c:\users\esmail\appdata\local\programs\python\python311\lib\site-packages (from imageio>=2.14.1->gym[mujoco]) (10.4.0)
Using cached imageio-2.34.2-py3-none-any.whl (313 kB)
Building wheels for collected packages: mujoco
  Building wheel for mujoco (setup.py) ... error
  error: subprocess-exited-with-error

  × python setup.py bdist_wheel did not run successfully.
  │ exit code: 1
  ╰─> [60 lines of output]
      running bdist_wheel
      running build
      running build_py
      creating build
      creating build\lib.win-amd64-cpython-311
      creating build\lib.win-amd64-cpython-311\mujoco
      copying mujoco\bindings_test.py -> build\lib.win-amd64-cpython-311\mujoco
      copying mujoco\render_test.py -> build\lib.win-amd64-cpython-311\mujoco
      copying mujoco\rollout.py -> build\lib.win-amd64-cpython-311\mujoco
      copying mujoco\rollout_test.py -> build\lib.win-amd64-cpython-311\mujoco
      copying mujoco\__init__.py -> build\lib.win-amd64-cpython-311\mujoco
      creating build\lib.win-amd64-cpython-311\mujoco\egl
      copying mujoco\egl\egl_ext.py -> build\lib.win-amd64-cpython-311\mujoco\egl
      copying mujoco\egl\__init__.py -> build\lib.win-amd64-cpython-311\mujoco\egl
      creating build\lib.win-amd64-cpython-311\mujoco\glfw
      copying mujoco\glfw\__init__.py -> build\lib.win-amd64-cpython-311\mujoco\glfw        
      creating build\lib.win-amd64-cpython-311\mujoco\osmesa
      copying mujoco\osmesa\__init__.py -> build\lib.win-amd64-cpython-311\mujoco\osmesa    
      running build_ext
      Traceback (most recent call last):
        File "<string>", line 2, in <module>
        File "<pip-setuptools-caller>", line 34, in <module>
        File "C:\Users\Esmail\AppData\Local\Temp\pip-install-wmwdu7wl\mujoco_057fcbc72af04795856e1d8c6a53e375\setup.py", line 265, in <module>
          setup(
        File "C:\Users\Esmail\AppData\Local\Programs\Python\Python311\Lib\site-packages\setuptools\__init__.py", line 103, in setup
          return distutils.core.setup(**attrs)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        File "C:\Users\Esmail\AppData\Local\Programs\Python\Python311\Lib\site-packages\setuptools\_distutils\core.py", line 185, in setup
          return run_commands(dist)
                 ^^^^^^^^^^^^^^^^^^
        File "C:\Users\Esmail\AppData\Local\Programs\Python\Python311\Lib\site-packages\setuptools\_distutils\core.py", line 201, in run_commands
          dist.run_commands()
        File "C:\Users\Esmail\AppData\Local\Programs\Python\Python311\Lib\site-packages\setuptools\_distutils\dist.py", line 969, in run_commands
          self.run_command(cmd)
        File "C:\Users\Esmail\AppData\Local\Programs\Python\Python311\Lib\site-packages\setuptools\dist.py", line 989, in run_command
          super().run_command(command)
        File "C:\Users\Esmail\AppData\Local\Programs\Python\Python311\Lib\site-packages\setuptools\_distutils\dist.py", line 988, in run_command
          cmd_obj.run()
        File "C:\Users\Esmail\AppData\Local\Programs\Python\Python311\Lib\site-packages\wheel\bdist_wheel.py", line 364, in run
          self.run_command("build")
        File "C:\Users\Esmail\AppData\Local\Programs\Python\Python311\Lib\site-packages\setuptools\_distutils\cmd.py", line 318, in run_command
          self.distribution.run_command(command)
        File "C:\Users\Esmail\AppData\Local\Programs\Python\Python311\Lib\site-packages\setuptools\dist.py", line 989, in run_command
          super().run_command(command)
        File "C:\Users\Esmail\AppData\Local\Programs\Python\Python311\Lib\site-packages\setuptools\_distutils\dist.py", line 988, in run_command
          cmd_obj.run()
        File "C:\Users\Esmail\AppData\Local\Programs\Python\Python311\Lib\site-packages\setuptools\_distutils\command\build.py", line 131, in run
          self.run_command(cmd_name)
        File "C:\Users\Esmail\AppData\Local\Programs\Python\Python311\Lib\site-packages\setuptools\_distutils\cmd.py", line 318, in run_command
          self.distribution.run_command(command)
        File "C:\Users\Esmail\AppData\Local\Programs\Python\Python311\Lib\site-packages\setuptools\dist.py", line 989, in run_command
          super().run_command(command)
        File "C:\Users\Esmail\AppData\Local\Programs\Python\Python311\Lib\site-packages\setuptools\_distutils\dist.py", line 988, in run_command
          cmd_obj.run()
        File "C:\Users\Esmail\AppData\Local\Temp\pip-install-wmwdu7wl\mujoco_057fcbc72af04795856e1d8c6a53e375\setup.py", line 143, in run
          self._mujoco_framework_path) = self._find_mujoco()
                                         ^^^^^^^^^^^^^^^^^^^
        File "C:\Users\Esmail\AppData\Local\Temp\pip-install-wmwdu7wl\mujoco_057fcbc72af04795856e1d8c6a53e375\setup.py", line 154, in _find_mujoco
          raise RuntimeError(f'{MUJOCO_PATH} environment variable is not set')
      RuntimeError: MUJOCO_PATH environment variable is not set
      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.      
  ERROR: Failed building wheel for mujoco
  Running setup.py clean for mujoco
Failed to build mujoco
ERROR: Could not build wheels for mujoco, which is required to install pyproject.toml-based 
projects