在Ubuntu 16.04上为box2d.py构建wheel失败

Question

我严格遵循了setup tutorial provided by gym但是，当我运行pip install -e '.[all]'时，我收到一个错误 或pip install -e '.[box2d]'

  Running setup.py bdist_wheel for box2d-py ... error
  Complete output from command /home/aptx/anaconda3/envs/rl/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-rx9l74ei/box2d-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-r9et1nxi --python-tag cp35:
  Using setuptools (version 39.1.0).
  running bdist_wheel
  running build
  running build_py
  creating build
  creating build/lib.linux-x86_64-3.5
  creating build/lib.linux-x86_64-3.5/Box2D
  copying library/Box2D/__init__.py -> build/lib.linux-x86_64-3.5/Box2D
  copying library/Box2D/Box2D.py -> build/lib.linux-x86_64-3.5/Box2D
  creating build/lib.linux-x86_64-3.5/Box2D/b2
  copying library/Box2D/b2/__init__.py -> build/lib.linux-x86_64-3.5/Box2D/b2
  running build_ext
  building 'Box2D._Box2D' extension
  swigging Box2D/Box2D.i to Box2D/Box2D_wrap.cpp
  swig -python -c++ -IBox2D -small -O -includeall -ignoremissing -w201 -globals b2Globals -outdir library/Box2D -keyword -w511 -D_SWIG_KWARGS -o Box2D/Box2D_wrap.cpp Box2D/Box2D.i
  Box2D/Common/b2Math.h:67: Warning 302: Identifier 'b2Vec2' redefined by %extend (ignored),
  Box2D/Box2D_math.i:47: Warning 302: %extend definition of 'b2Vec2'.
  Box2D/Common/b2Math.h:158: Warning 302: Identifier 'b2Vec3' redefined by %extend (ignored),
  Box2D/Box2D_math.i:168: Warning 302: %extend definition of 'b2Vec3'.
  Box2D/Common/b2Math.h:197: Warning 302: Identifier 'b2Mat22' redefined by %extend (ignored),
  Box2D/Box2D_math.i:301: Warning 302: %extend definition of 'b2Mat22'.
  Box2D/Common/b2Math.h:271: Warning 302: Identifier 'b2Mat33' redefined by %extend (ignored),
  Box2D/Box2D_math.i:372: Warning 302: %extend definition of 'b2Mat33'.
  Box2D/Collision/b2DynamicTree.h:44: Warning 312: Nested union not currently supported (ignored).
  Box2D/Common/b2Settings.h:144: Warning 506: Can't wrap varargs with keyword arguments enabled
  Box2D/Common/b2Math.h:91: Warning 509: Overloaded method b2Vec2::operator ()(int32) effectively ignored,
  Box2D/Common/b2Math.h:85: Warning 509: as it is shadowed by b2Vec2::operator ()(int32) const.
  creating build/temp.linux-x86_64-3.5
  creating build/temp.linux-x86_64-3.5/Box2D
  creating build/temp.linux-x86_64-3.5/Box2D/Dynamics
  creating build/temp.linux-x86_64-3.5/Box2D/Dynamics/Contacts
  creating build/temp.linux-x86_64-3.5/Box2D/Dynamics/Joints
  creating build/temp.linux-x86_64-3.5/Box2D/Common
  creating build/temp.linux-x86_64-3.5/Box2D/Collision
  creating build/temp.linux-x86_64-3.5/Box2D/Collision/Shapes
  gcc -pthread -B /home/aptx/anaconda3/envs/rl/compiler_compat -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fPIC -I/home/aptx/anaconda3/envs/rl/include/python3.5m -c Box2D/Box2D_wrap.cpp -o build/temp.linux-x86_64-3.5/Box2D/Box2D_wrap.o -I. -Wno-unused
  cc1plus: warning: command line option ‘-Wstrict-prototypes’ is valid for C/ObjC but not for C++ [enabled by default]
  gcc -pthread -B /home/aptx/anaconda3/envs/rl/compiler_compat -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fPIC -I/home/aptx/anaconda3/envs/rl/include/python3.5m -c Box2D/Dynamics/b2WorldCallbacks.cpp -o build/temp.linux-x86_64-3.5/Box2D/Dynamics/b2WorldCallbacks.o -I. -Wno-unused
  cc1plus: warning: command line option ‘-Wstrict-prototypes’ is valid for C/ObjC but not for C++ [enabled by default]
  cc1plus: warning: command line option ‘-Wstrict-prototypes’ is valid for C/ObjC but not for C++ [enabled by default]
  gcc -pthread -B /home/aptx/anaconda3/envs/rl/compiler_compat -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fPIC -I/home/aptx/anaconda3/envs/rl/include/python3.5m -c Box2D/Dynamics/Contacts/b2ContactSolver.cpp -o build/temp.linux-x86_64-3.5/Box2D/Dynamics/Contacts/b2ContactSolver.o -I. -Wno-unused
  cc1plus: warning: command line option ‘-Wstrict-prototypes’ is valid for C/ObjC but not for C++ [enabled by default]
  Box2D/Dynamics/Contacts/b2ContactSolver.cpp: In member function ‘bool b2ContactSolver::SolvePositionConstraints()’:
  Box2D/Dynamics/Contacts/b2ContactSolver.cpp:713:51: warning: ‘psm.b2PositionSolverManifold::separation’ may be used uninitialized in this function [-Wmaybe-uninitialized]
      float32 C = b2Clamp(b2_baumgarte * (separation + b2_linearSlop), -b2_maxLinearCorrection, 0.0f);

  cc1plus: warning: command line option ‘-Wstrict-prototypes’ is valid for C/ObjC but not for C++ [enabled by default]
  gcc -pthread -B /home/aptx/anaconda3/envs/rl/compiler_compat -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fPIC -I/home/aptx/anaconda3/envs/rl/include/python3.5m -c Box2D/Collision/Shapes/b2EdgeShape.cpp -o build/temp.linux-x86_64-3.5/Box2D/Collision/Shapes/b2EdgeShape.o -I. -Wno-unused
  cc1plus: warning: command line option ‘-Wstrict-prototypes’ is valid for C/ObjC but not for C++ [enabled by default]
  g++ -pthread -shared -L/home/aptx/anaconda3/envs/rl/lib -B /home/aptx/anaconda3/envs/rl/compiler_compat -Wl,-rpath=/home/aptx/anaconda3/envs/rl/lib,--no-as-needed build/temp.linux-x86_64-3.5/Box2D/Box2D_wrap.o build/temp.linux-x86_64-3.5/Box2D/Dynamics/b2WorldCallbacks.o build/temp.linux-x86_64-3.5/Box2D/Dynamics/b2Island.o build/temp.linux-x86_64-3.5/Box2D/Dynamics/b2Fixture.o build/temp.linux-x86_64-3.5/Box2D/Dynamics/b2ContactManager.o build/temp.linux-x86_64-3.5/Box2D/Dynamics/b2World.o build/temp.linux-x86_64-3.5/Box2D/Dynamics/b2Body.o build/temp.linux-x86_64-3.5/Box2D/Dynamics/Contacts/b2CircleContact.o build/temp.linux-x86_64-3.5/Box2D/Dynamics/Contacts/b2EdgeAndCircleContact.o build/temp.linux-x86_64-3.5/Box2D/Dynamics/Contacts/b2PolygonContact.o build/temp.linux-x86_64-3.5/Box2D/Dynamics/Contacts/b2PolygonAndCircleContact.o build/temp.linux-x86_64-3.5/Box2D/Dynamics/Contacts/b2ChainAndCircleContact.o build/temp.linux-x86_64-3.5/Box2D/Dynamics/Contacts/b2ChainAndPolygonContact.o build/temp.linux-x86_64-3.5/Box2D/Dynamics/Contacts/b2EdgeAndPolygonContact.o build/temp.linux-x86_64-3.5/Box2D/Dynamics/Contacts/b2Contact.o build/temp.linux-x86_64-3.5/Box2D/Dynamics/Contacts/b2ContactSolver.o build/temp.linux-x86_64-3.5/Box2D/Dynamics/Joints/b2GearJoint.o build/temp.linux-x86_64-3.5/Box2D/Dynamics/Joints/b2PulleyJoint.o build/temp.linux-x86_64-3.5/Box2D/Dynamics/Joints/b2FrictionJoint.o build/temp.linux-x86_64-3.5/Box2D/Dynamics/Joints/b2MouseJoint.o build/temp.linux-x86_64-3.5/Box2D/Dynamics/Joints/b2DistanceJoint.o build/temp.linux-x86_64-3.5/Box2D/Dynamics/Joints/b2RevoluteJoint.o build/temp.linux-x86_64-3.5/Box2D/Dynamics/Joints/b2MotorJoint.o build/temp.linux-x86_64-3.5/Box2D/Dynamics/Joints/b2PrismaticJoint.o build/temp.linux-x86_64-3.5/Box2D/Dynamics/Joints/b2WeldJoint.o build/temp.linux-x86_64-3.5/Box2D/Dynamics/Joints/b2Joint.o build/temp.linux-x86_64-3.5/Box2D/Dynamics/Joints/b2WheelJoint.o build/temp.linux-x86_64-3.5/Box2D/Dynamics/Joints/b2RopeJoint.o build/temp.linux-x86_64-3.5/Box2D/Common/b2StackAllocator.o build/temp.linux-x86_64-3.5/Box2D/Common/b2BlockAllocator.o build/temp.linux-x86_64-3.5/Box2D/Common/b2Timer.o build/temp.linux-x86_64-3.5/Box2D/Common/b2Math.o build/temp.linux-x86_64-3.5/Box2D/Common/b2Settings.o build/temp.linux-x86_64-3.5/Box2D/Common/b2Draw.o build/temp.linux-x86_64-3.5/Box2D/Collision/b2BroadPhase.o build/temp.linux-x86_64-3.5/Box2D/Collision/b2CollideCircle.o build/temp.linux-x86_64-3.5/Box2D/Collision/b2TimeOfImpact.o build/temp.linux-x86_64-3.5/Box2D/Collision/b2Collision.o build/temp.linux-x86_64-3.5/Box2D/Collision/b2CollidePolygon.o build/temp.linux-x86_64-3.5/Box2D/Collision/b2Distance.o build/temp.linux-x86_64-3.5/Box2D/Collision/b2DynamicTree.o build/temp.linux-x86_64-3.5/Box2D/Collision/b2CollideEdge.o build/temp.linux-x86_64-3.5/Box2D/Collision/Shapes/b2ChainShape.o build/temp.linux-x86_64-3.5/Box2D/Collision/Shapes/b2CircleShape.o build/temp.linux-x86_64-3.5/Box2D/Collision/Shapes/b2PolygonShape.o build/temp.linux-x86_64-3.5/Box2D/Collision/Shapes/b2EdgeShape.o -o build/lib.linux-x86_64-3.5/Box2D/_Box2D.cpython-35m-x86_64-linux-gnu.so
  /home/aptx/anaconda3/envs/rl/compiler_compat/ld: cannot find -lm
  /home/aptx/anaconda3/envs/rl/compiler_compat/ld: cannot find -lpthread
  /home/aptx/anaconda3/envs/rl/compiler_compat/ld: cannot find -lc
  collect2: error: ld returned 1 exit status
  error: command 'g++' failed with exit status 1

  ----------------------------------------
  Failed building wheel for box2d-py

为了简洁起见，我省略了一些警告信息。我查了很多遍，但还是没用。我希望有人能帮我弄清楚。提前谢谢。在

Answer 1

看来你没有安装Python编译器。新版本的Python船有自己的编译器。您可以参考this article了解如何正确设置它。在

如果您已经安装了工具集，请确保您activate有适当的环境，因为这还将设置必要的环境变量（更新后停用/激活也可能有帮助）。在