title: Error in the execution of pip install pyaudio on Mac OS Mojave
body: <blockquote>
    <p><code>Collecting pyaudio
      Downloading https://files.pythonhosted.org/packages/ab/42/b4f04721c5c5bfc196ce156b3c768998ef8c0ae3654ed29ea5020c749a6b/PyAudio-0.2.11.tar.gz
    Building wheels for collected packages: pyaudio
      Building wheel for pyaudio (setup.py) ... error
      ERROR: Command errored out with exit status 1:
       command: /anaconda3/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/tmp/pip-install-_jk8c3tj/pyaudio/setup.py'"'"'; __file__='"'"'/private/tmp/pip-install-_jk8c3tj/pyaudio/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 /private/tmp/pip-wheel-ze2dwvn0 --python-tag cp36
           cwd: /private/tmp/pip-install-_jk8c3tj/pyaudio/
      Complete output (16 lines):
      running bdist_wheel
      running build
      running build_py
      creating build
      creating build/lib.macosx-10.7-x86_64-3.6
      copying src/pyaudio.py -&gt; build/lib.macosx-10.7-x86_64-3.6
      running build_ext
      building '_portaudio' extension
      creating build/temp.macosx-10.7-x86_64-3.6
      creating build/temp.macosx-10.7-x86_64-3.6/src
      gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/anaconda3/include -arch x86_64 -I/anaconda3/include -arch x86_64 -DMACOSX=1 -I/anaconda3/include/python3.6m -c src/_portaudiomodule.c -o build/temp.macosx-10.7-x86_64-3.6/src/_portaudiomodule.o
      src/_portaudiomodule.c:29:10: fatal error: 'portaudio.h' file not found
      #include "portaudio.h"
               ^~~~~~~~~~~~~
      1 error generated.
      error: command 'gcc' failed with exit status 1</code></p>
    
    <hr>
    
    <p><code>ERROR: Failed building wheel for pyaudio
      Running setup.py clean for pyaudio
    Failed to build pyaudio
    Installing collected packages: pyaudio
        Running setup.py install for pyaudio ... error
        ERROR: Command errored out with exit status 1:
         command: /anaconda3/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/tmp/pip-install-_jk8c3tj/pyaudio/setup.py'"'"'; __file__='"'"'/private/tmp/pip-install-_jk8c3tj/pyaudio/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /private/tmp/pip-record-a_zim1cg/install-record.txt --single-version-externally-managed --compile
             cwd: /private/tmp/pip-install-_jk8c3tj/pyaudio/
        Complete output (16 lines):
        running install
        running build
        running build_py
        creating build
        creating build/lib.macosx-10.7-x86_64-3.6
        copying src/pyaudio.py -&gt; build/lib.macosx-10.7-x86_64-3.6
        running build_ext
        building '_portaudio' extension
        creating build/temp.macosx-10.7-x86_64-3.6
        creating build/temp.macosx-10.7-x86_64-3.6/src
        gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/anaconda3/include -arch x86_64 -I/anaconda3/include -arch x86_64 -DMACOSX=1 -I/anaconda3/include/python3.6m -c src/_portaudiomodule.c -o build/temp.macosx-10.7-x86_64-3.6/src/_portaudiomodule.o
        src/_portaudiomodule.c:29:10: fatal error: 'portaudio.h' file not found
        #include "portaudio.h"
                 ^~~~~~~~~~~~~
        1 error generated.
        error: command 'gcc' failed with exit status 1
        ----------------------------------------
    ERROR: Command errored out with exit status 1: /anaconda3/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/tmp/pip-install-_jk8c3tj/pyaudio/setup.py'"'"'; __file__='"'"'/private/tmp/pip-install-_jk8c3tj/pyaudio/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /private/tmp/pip-record-a_zim1cg/install-record.txt --single-version-externally-managed --compile Check the logs for full command output.</code></p>
  </blockquote>