error when using pip to install mujoco library

Question

Hi I get an error when I pip install a library called mujoco-py. However I am unable to identify how to resolve this from the error message below:

~$ pip3 install -U --user 'mujoco-py<1.50.2,>=1.50.1'
Collecting mujoco-py<1.50.2,>=1.50.1
  Using cached https://files.pythonhosted.org/packages/cf/8c/64e0630b3d450244feef0688d90eab2448631e40ba6bdbd90a70b84898e7/mujoco-py-1.50.1.68.tar.gz
Requirement already satisfied, skipping upgrade: Cython>=0.27.2 in ./.local/lib/python3.7/site-packages (from mujoco-py<1.50.2,>=1.50.1) (0.29.3)
Requirement already satisfied, skipping upgrade: cffi>=1.10 in ./.local/lib/python3.7/site-packages (from mujoco-py<1.50.2,>=1.50.1) (1.11.5)
Requirement already satisfied, skipping upgrade: glfw>=1.4.0 in ./.local/lib/python3.7/site-packages (from mujoco-py<1.50.2,>=1.50.1) (1.7.0)
Requirement already satisfied, skipping upgrade: imageio>=2.1.2 in ./.local/lib/python3.7/site-packages (from mujoco-py<1.50.2,>=1.50.1) (2.4.1)
Requirement already satisfied, skipping upgrade: lockfile>=0.12.2 in ./.local/lib/python3.7/site-packages (from mujoco-py<1.50.2,>=1.50.1) (0.12.2)
Requirement already satisfied, skipping upgrade: numpy>=1.11 in ./.local/lib/python3.7/site-packages (from mujoco-py<1.50.2,>=1.50.1) (1.16.0)
Requirement already satisfied, skipping upgrade: pycparser in ./.local/lib/python3.7/site-packages (from cffi>=1.10->mujoco-py<1.50.2,>=1.50.1) (2.19)
Requirement already satisfied, skipping upgrade: pillow in /usr/lib/python3/dist-packages (from imageio>=2.1.2->mujoco-py<1.50.2,>=1.50.1) (5.1.0)
Building wheels for collected packages: mujoco-py
  Building wheel for mujoco-py (setup.py) ... error
  Complete output from command /usr/bin/python3 -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-z3t4vdud/mujoco-py/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" bdist_wheel -d /tmp/pip-wheel-49u4_yeg --python-tag cp37:
  running bdist_wheel
  running build
  Removing old mujoco_py cext /tmp/pip-install-z3t4vdud/mujoco-py/mujoco_py/generated/cymj_1.50.1.68_37_linuxcpuextensionbuilder_37.so
  Compiling /tmp/pip-install-z3t4vdud/mujoco-py/mujoco_py/cymj.pyx because it changed.
  [1/1] Cythonizing /tmp/pip-install-z3t4vdud/mujoco-py/mujoco_py/cymj.pyx
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:99:4: 'mjtDisableBit' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:114:4: 'mjtEnableBit' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:121:4: 'mjtJoint' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:127:4: 'mjtGeom' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:149:4: 'mjtCamLight' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:157:4: 'mjtTexture' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:163:4: 'mjtIntegrator' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:168:4: 'mjtCollision' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:174:4: 'mjtCone' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:179:4: 'mjtJacobian' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:185:4: 'mjtSolver' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:191:4: 'mjtImp' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:198:4: 'mjtRef' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:203:4: 'mjtEq' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:211:4: 'mjtWrap' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:220:4: 'mjtTrn' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:230:4: 'mjtDyn' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:237:4: 'mjtGain' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:242:4: 'mjtBias' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:248:4: 'mjtObj' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:274:4: 'mjtConstraint' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:285:4: 'mjtConstraintState' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:294:4: 'mjtSensor' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:338:4: 'mjtStage' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:345:4: 'mjtDataType' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:99:4: 'mjtDisableBit' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:114:4: 'mjtEnableBit' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:121:4: 'mjtJoint' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:127:4: 'mjtGeom' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:149:4: 'mjtCamLight' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:157:4: 'mjtTexture' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:163:4: 'mjtIntegrator' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:168:4: 'mjtCollision' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:174:4: 'mjtCone' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:179:4: 'mjtJacobian' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:185:4: 'mjtSolver' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:191:4: 'mjtImp' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:198:4: 'mjtRef' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:203:4: 'mjtEq' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:211:4: 'mjtWrap' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:220:4: 'mjtTrn' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:230:4: 'mjtDyn' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:237:4: 'mjtGain' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:242:4: 'mjtBias' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:248:4: 'mjtObj' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:274:4: 'mjtConstraint' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:285:4: 'mjtConstraintState' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:294:4: 'mjtSensor' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:338:4: 'mjtStage' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:345:4: 'mjtDataType' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:75:4: 'mjtNum' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:77:10: 'mjPI' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:78:10: 'mjMAXVAL' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:79:10: 'mjMINMU' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:80:10: 'mjMINIMP' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:81:10: 'mjMAXIMP' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:82:10: 'mjMAXCONPAIR' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:83:10: 'mjMAXVFS' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:84:10: 'mjMAXVFSNAME' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:87:10: 'mjNEQDATA' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:88:10: 'mjNDYN' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:89:10: 'mjNGAIN' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:90:10: 'mjNBIAS' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:91:10: 'mjNREF' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:92:10: 'mjNIMP' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:93:10: 'mjNSOLVER' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:96:4: 'mjtByte' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:100:8: 'mjDSBL_CONSTRAINT' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:101:8: 'mjDSBL_EQUALITY' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:102:8: 'mjDSBL_FRICTIONLOSS' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:103:8: 'mjDSBL_LIMIT' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:104:8: 'mjDSBL_CONTACT' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:105:8: 'mjDSBL_PASSIVE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:106:8: 'mjDSBL_GRAVITY' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:107:8: 'mjDSBL_CLAMPCTRL' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:108:8: 'mjDSBL_WARMSTART' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:109:8: 'mjDSBL_FILTERPARENT' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:110:8: 'mjDSBL_ACTUATION' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:111:8: 'mjDSBL_REFSAFE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:112:10: 'mjNDISABLE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:115:8: 'mjENBL_OVERRIDE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:116:8: 'mjENBL_ENERGY' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:117:8: 'mjENBL_FWDINV' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:118:8: 'mjENBL_SENSORNOISE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:119:10: 'mjNENABLE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:122:8: 'mjJNT_FREE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:123:8: 'mjJNT_BALL' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:124:8: 'mjJNT_SLIDE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:125:8: 'mjJNT_HINGE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:129:8: 'mjGEOM_PLANE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:130:8: 'mjGEOM_HFIELD' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:131:8: 'mjGEOM_SPHERE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:132:8: 'mjGEOM_CAPSULE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:133:8: 'mjGEOM_ELLIPSOID' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:134:8: 'mjGEOM_CYLINDER' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:135:8: 'mjGEOM_BOX' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:136:8: 'mjGEOM_MESH' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:138:8: 'mjNGEOMTYPES' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:141:8: 'mjGEOM_ARROW' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:142:8: 'mjGEOM_ARROW1' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:143:8: 'mjGEOM_ARROW2' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:144:8: 'mjGEOM_LABEL' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:146:8: 'mjGEOM_NONE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:150:8: 'mjCAMLIGHT_FIXED' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:151:8: 'mjCAMLIGHT_TRACK' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:152:8: 'mjCAMLIGHT_TRACKCOM' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:153:8: 'mjCAMLIGHT_TARGETBODY' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:154:8: 'mjCAMLIGHT_TARGETBODYCOM' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:158:8: 'mjTEXTURE_2D' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:159:8: 'mjTEXTURE_CUBE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:160:8: 'mjTEXTURE_SKYBOX' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:164:8: 'mjINT_EULER' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:165:8: 'mjINT_RK4' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:169:8: 'mjCOL_ALL' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:170:8: 'mjCOL_PAIR' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:171:8: 'mjCOL_DYNAMIC' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:175:8: 'mjCONE_PYRAMIDAL' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:176:8: 'mjCONE_ELLIPTIC' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:180:8: 'mjJAC_DENSE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:181:8: 'mjJAC_SPARSE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:182:8: 'mjJAC_AUTO' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:186:8: 'mjSOL_PGS' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:187:8: 'mjSOL_CG' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:188:8: 'mjSOL_NEWTON' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:192:8: 'mjIMP_CONSTANT' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:193:8: 'mjIMP_SIGMOID' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:194:8: 'mjIMP_LINEAR' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:195:8: 'mjIMP_USER' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:199:8: 'mjREF_SPRING' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:200:8: 'mjREF_USER' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:204:8: 'mjEQ_CONNECT' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:205:8: 'mjEQ_WELD' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:206:8: 'mjEQ_JOINT' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:207:8: 'mjEQ_TENDON' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:208:8: 'mjEQ_DISTANCE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:212:8: 'mjWRAP_NONE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:213:8: 'mjWRAP_JOINT' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:214:8: 'mjWRAP_PULLEY' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:215:8: 'mjWRAP_SITE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:216:8: 'mjWRAP_SPHERE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:217:8: 'mjWRAP_CYLINDER' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:221:8: 'mjTRN_JOINT' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:222:8: 'mjTRN_JOINTINPARENT' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:223:8: 'mjTRN_SLIDERCRANK' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:224:8: 'mjTRN_TENDON' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:225:8: 'mjTRN_SITE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:227:8: 'mjTRN_UNDEFINED' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:231:8: 'mjDYN_NONE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:232:8: 'mjDYN_INTEGRATOR' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:233:8: 'mjDYN_FILTER' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:234:8: 'mjDYN_USER' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:238:8: 'mjGAIN_FIXED' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:239:8: 'mjGAIN_USER' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:243:8: 'mjBIAS_NONE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:244:8: 'mjBIAS_AFFINE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:245:8: 'mjBIAS_USER' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:249:8: 'mjOBJ_UNKNOWN' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:250:8: 'mjOBJ_BODY' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:251:8: 'mjOBJ_XBODY' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:252:8: 'mjOBJ_JOINT' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:253:8: 'mjOBJ_DOF' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:254:8: 'mjOBJ_GEOM' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:255:8: 'mjOBJ_SITE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:256:8: 'mjOBJ_CAMERA' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:257:8: 'mjOBJ_LIGHT' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:258:8: 'mjOBJ_MESH' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:259:8: 'mjOBJ_HFIELD' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:260:8: 'mjOBJ_TEXTURE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:261:8: 'mjOBJ_MATERIAL' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:262:8: 'mjOBJ_PAIR' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:263:8: 'mjOBJ_EXCLUDE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:264:8: 'mjOBJ_EQUALITY' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:265:8: 'mjOBJ_TENDON' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:266:8: 'mjOBJ_ACTUATOR' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:267:8: 'mjOBJ_SENSOR' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:268:8: 'mjOBJ_NUMERIC' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:269:8: 'mjOBJ_TEXT' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:270:8: 'mjOBJ_TUPLE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:271:8: 'mjOBJ_KEY' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:275:8: 'mjCNSTR_EQUALITY' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:276:8: 'mjCNSTR_FRICTION_DOF' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:277:8: 'mjCNSTR_FRICTION_TENDON' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:278:8: 'mjCNSTR_LIMIT_JOINT' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:279:8: 'mjCNSTR_LIMIT_TENDON' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:280:8: 'mjCNSTR_CONTACT_FRICTIONLESS' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:281:8: 'mjCNSTR_CONTACT_PYRAMIDAL' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:282:8: 'mjCNSTR_CONTACT_ELLIPTIC' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:286:8: 'mjCNSTRSTATE_SATISFIED' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:287:8: 'mjCNSTRSTATE_QUADRATIC' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:288:8: 'mjCNSTRSTATE_LINEARNEG' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:289:8: 'mjCNSTRSTATE_LINEARPOS' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:290:8: 'mjCNSTRSTATE_CONE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:296:8: 'mjSENS_TOUCH' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:297:8: 'mjSENS_ACCELEROMETER' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:298:8: 'mjSENS_VELOCIMETER' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:299:8: 'mjSENS_GYRO' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:300:8: 'mjSENS_FORCE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:301:8: 'mjSENS_TORQUE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:302:8: 'mjSENS_MAGNETOMETER' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:303:8: 'mjSENS_RANGEFINDER' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:306:8: 'mjSENS_JOINTPOS' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:307:8: 'mjSENS_JOINTVEL' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:308:8: 'mjSENS_TENDONPOS' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:309:8: 'mjSENS_TENDONVEL' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:310:8: 'mjSENS_ACTUATORPOS' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:311:8: 'mjSENS_ACTUATORVEL' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:306:8: 'mjSENS_JOINTPOS' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:307:8: 'mjSENS_JOINTVEL' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:308:8: 'mjSENS_TENDONPOS' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:309:8: 'mjSENS_TENDONVEL' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:310:8: 'mjSENS_ACTUATORPOS' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:311:8: 'mjSENS_ACTUATORVEL' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:312:8: 'mjSENS_ACTUATORFRC' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:315:8: 'mjSENS_BALLQUAT' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:316:8: 'mjSENS_BALLANGVEL' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:319:8: 'mjSENS_FRAMEPOS' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:320:8: 'mjSENS_FRAMEQUAT' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:321:8: 'mjSENS_FRAMEXAXIS' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:322:8: 'mjSENS_FRAMEYAXIS' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:323:8: 'mjSENS_FRAMEZAXIS' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:324:8: 'mjSENS_FRAMELINVEL' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:325:8: 'mjSENS_FRAMEANGVEL' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:326:8: 'mjSENS_FRAMELINACC' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:327:8: 'mjSENS_FRAMEANGACC' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:330:8: 'mjSENS_SUBTREECOM' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:331:8: 'mjSENS_SUBTREELINVEL' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:332:8: 'mjSENS_SUBTREEANGMOM' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:335:8: 'mjSENS_USER' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:339:8: 'mjSTAGE_NONE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:340:8: 'mjSTAGE_POS' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:341:8: 'mjSTAGE_VEL' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:342:8: 'mjSTAGE_ACC' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:346:8: 'mjDATATYPE_REAL' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:347:8: 'mjDATATYPE_POSITIVE' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:348:8: 'mjDATATYPE_AXIS' redeclared
  warning: mujoco_py/generated/../pxd/mjmodel.pxd:349:8: 'mjDATATYPE_QUAT' redeclared
  running build_ext
  building 'mujoco_py.cymj' extension
  creating /tmp/pip-install-z3t4vdud/mujoco-py/mujoco_py/generated/_pyxbld_1.50.1.68_37_linuxcpuextensionbuilder
  creating /tmp/pip-install-z3t4vdud/mujoco-py/mujoco_py/generated/_pyxbld_1.50.1.68_37_linuxcpuextensionbuilder/temp.linux-x86_64-3.7
  creating /tmp/pip-install-z3t4vdud/mujoco-py/mujoco_py/generated/_pyxbld_1.50.1.68_37_linuxcpuextensionbuilder/temp.linux-x86_64-3.7/tmp
  creating /tmp/pip-install-z3t4vdud/mujoco-py/mujoco_py/generated/_pyxbld_1.50.1.68_37_linuxcpuextensionbuilder/temp.linux-x86_64-3.7/tmp/pip-install-z3t4vdud
  creating /tmp/pip-install-z3t4vdud/mujoco-py/mujoco_py/generated/_pyxbld_1.50.1.68_37_linuxcpuextensionbuilder/temp.linux-x86_64-3.7/tmp/pip-install-z3t4vdud/mujoco-py
  creating /tmp/pip-install-z3t4vdud/mujoco-py/mujoco_py/generated/_pyxbld_1.50.1.68_37_linuxcpuextensionbuilder/temp.linux-x86_64-3.7/tmp/pip-install-z3t4vdud/mujoco-py/mujoco_py
  creating /tmp/pip-install-z3t4vdud/mujoco-py/mujoco_py/generated/_pyxbld_1.50.1.68_37_linuxcpuextensionbuilder/temp.linux-x86_64-3.7/tmp/pip-install-z3t4vdud/mujoco-py/mujoco_py/gl
  x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -g -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -Imujoco_py -I/tmp/pip-install-z3t4vdud/mujoco-py/mujoco_py -I/home/imran/.mujoco/mjpro150/include -I/home/imran/.local/lib/python3.7/site-packages/numpy/core/include -I/usr/include/python3.7m -c /tmp/pip-install-z3t4vdud/mujoco-py/mujoco_py/cymj.c -o /tmp/pip-install-z3t4vdud/mujoco-py/mujoco_py/generated/_pyxbld_1.50.1.68_37_linuxcpuextensionbuilder/temp.linux-x86_64-3.7/tmp/pip-install-z3t4vdud/mujoco-py/mujoco_py/cymj.o -fopenmp -w
  /tmp/pip-install-z3t4vdud/mujoco-py/mujoco_py/cymj.c:53:10: fatal error: Python.h: No such file or directory
   #include "Python.h"
            ^~~~~~~~~~
  compilation terminated.
  error: command 'x86_64-linux-gnu-gcc' failed with exit status 1

  ----------------------------------------
  Failed building wheel for mujoco-py
  Running setup.py clean for mujoco-py
Failed to build mujoco-py
Installing collected packages: mujoco-py
  Running setup.py install for mujoco-py ... error
    Complete output from command /usr/bin/python3 -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-z3t4vdud/mujoco-py/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-record-t_1q5w6p/install-record.txt --single-version-externally-managed --compile --user --prefix=:
    running install
    running build
    Removing old mujoco_py cext /tmp/pip-install-z3t4vdud/mujoco-py/mujoco_py/generated/cymj_1.50.1.68_37_linuxcpuextensionbuilder_37.so
    running build_ext
    building 'mujoco_py.cymj' extension
    x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -g -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -Imujoco_py -I/tmp/pip-install-z3t4vdud/mujoco-py/mujoco_py -I/home/imran/.mujoco/mjpro150/include -I/home/imran/.local/lib/python3.7/site-packages/numpy/core/include -I/usr/include/python3.7m -c /tmp/pip-install-z3t4vdud/mujoco-py/mujoco_py/cymj.c -o /tmp/pip-install-z3t4vdud/mujoco-py/mujoco_py/generated/_pyxbld_1.50.1.68_37_linuxcpuextensionbuilder/temp.linux-x86_64-3.7/tmp/pip-install-z3t4vdud/mujoco-py/mujoco_py/cymj.o -fopenmp -w
    /tmp/pip-install-z3t4vdud/mujoco-py/mujoco_py/cymj.c:53:10: fatal error: Python.h: No such file or directory
     #include "Python.h"
              ^~~~~~~~~~
    compilation terminated.
    error: command 'x86_64-linux-gnu-gcc' failed with exit status 1

    ----------------------------------------
Command "/usr/bin/python3 -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-z3t4vdud/mujoco-py/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-record-t_1q5w6p/install-record.txt --single-version-externally-managed --compile --user --prefix=" failed with error code 1 in /tmp/pip-install-z3t4vdud/mujoco-py/

Answer 1

You have the incorrect Python headers installed, and the compiler cannot find them.

The failing command has this on the command-line:

-I/usr/include/python3.7m

And the last line of your issue contains:

Command "/usr/bin/python3 -u ...

You can usually solve this issue by installing the Python "development" library. It's unclear which Linux you are running, although generally to install the python dev version headers you would do:

$ sudo apt-get install libpython3.7-dev

Once installed try using your pip command again and it should hopefully work.