Getting Pusher to work on a sudo pip install pusher

pusher

Collecting pusher
  Downloading pusher-1.7.2.tar.gz (155kB)
    100% |████████████████████████████████| 163kB 51kB/s
Collecting six (from pusher)
  Downloading six-1.11.0-py2.py3-none-any.whl
Collecting requests>=2.3.0 (from pusher)
  Downloading requests-2.18.4-py2.py3-none-any.whl (88kB)
    100% |████████████████████████████████| 92kB 93kB/s
Collecting urllib3 (from pusher)
  Downloading urllib3-1.22-py2.py3-none-any.whl (132kB)
    100% |████████████████████████████████| 133kB 89kB/s
Collecting pyopenssl (from pusher)
  Downloading pyOpenSSL-17.3.0-py2.py3-none-any.whl (51kB)
    100% |████████████████████████████████| 51kB 148kB/s
Collecting ndg-httpsclient (from pusher)
  Downloading ndg_httpsclient-0.4.3-py2-none-any.whl
Collecting pyasn1 (from pusher)
  Downloading pyasn1-0.3.7-py2.py3-none-any.whl (63kB)
    100% |████████████████████████████████| 71kB 106kB/s
Collecting idna<2.7,>=2.5 (from requests>=2.3.0->pusher)
  Downloading idna-2.6-py2.py3-none-any.whl (56kB)
    100% |████████████████████████████████| 61kB 115kB/s
Collecting certifi>=2017.4.17 (from requests>=2.3.0->pusher)
  Downloading certifi-2017.7.27.1-py2.py3-none-any.whl (349kB)
    100% |████████████████████████████████| 358kB 95kB/s
Collecting chardet<3.1.0,>=3.0.2 (from requests>=2.3.0->pusher)
  Downloading chardet-3.0.4-py2.py3-none-any.whl (133kB)
    100% |████████████████████████████████| 143kB 54kB/s
Collecting cryptography>=1.9 (from pyopenssl->pusher)
  Downloading cryptography-2.0.3.tar.gz (427kB)
    100% |████████████████████████████████| 430kB 72kB/s
Collecting asn1crypto>=0.21.0 (from cryptography>=1.9->pyopenssl->pusher)
  Downloading asn1crypto-0.23.0-py2.py3-none-any.whl (99kB)
    100% |████████████████████████████████| 102kB 154kB/s
Collecting enum34 (from cryptography>=1.9->pyopenssl->pusher)
  Downloading enum34-1.1.6-py2-none-any.whl
Collecting ipaddress (from cryptography>=1.9->pyopenssl->pusher)
  Downloading ipaddress-1.0.18-py2-none-any.whl
Collecting cffi>=1.7 (from cryptography>=1.9->pyopenssl->pusher)
  Downloading cffi-1.11.2.tar.gz (435kB)
    100% |████████████████████████████████| 440kB 97kB/s
Collecting pycparser (from cffi>=1.7->cryptography>=1.9->pyopenssl->pusher)
  Downloading pycparser-2.18.tar.gz (245kB)
    100% |████████████████████████████████| 256kB 101kB/s
Building wheels for collected packages: pusher, cryptography, cffi, pycparser
  Running setup.py bdist_wheel for pusher ... done
  Stored in directory: /root/.cache/pip/wheels/ec/a8/60/7f825f489b5274e631de9e61d3e8a29af5dca9f5d977bfde49
  Running setup.py bdist_wheel for cryptography ... error
  Complete output from command /usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-3irOo2/cryptography/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/tmpwnTTPDpip-wheel- --python-tag cp27:
  Package libffi was not found in the pkg-config search path.
  Perhaps you should add the directory containing `libffi.pc'
  to the PKG_CONFIG_PATH environment variable
  No package 'libffi' found
  Package libffi was not found in the pkg-config search path.
  Perhaps you should add the directory containing `libffi.pc'
  to the PKG_CONFIG_PATH environment variable
  No package 'libffi' found
  Package libffi was not found in the pkg-config search path.
  Perhaps you should add the directory containing `libffi.pc'
  to the PKG_CONFIG_PATH environment variable
  No package 'libffi' found
  Package libffi was not found in the pkg-config search path.
  Perhaps you should add the directory containing `libffi.pc'
  to the PKG_CONFIG_PATH environment variable
  No package 'libffi' found
  Package libffi was not found in the pkg-config search path.
  Perhaps you should add the directory containing `libffi.pc'
  to the PKG_CONFIG_PATH environment variable
  No package 'libffi' found
  c/_cffi_backend.c:15:17: fatal error: ffi.h: No such file or directory
   #include <ffi.h>
                   ^
  compilation terminated.
  Traceback (most recent call last):
    File "<string>", line 1, in <module>
    File "/tmp/pip-build-3irOo2/cryptography/setup.py", line 312, in <module>
      **keywords_with_side_effects(sys.argv)
    File "/usr/lib/python2.7/distutils/core.py", line 111, in setup
      _setup_distribution = dist = klass(attrs)
    File "/usr/local/lib/python2.7/dist-packages/setuptools/dist.py", line 335, in __init__
      self.fetch_build_eggs(attrs['setup_requires'])
    File "/usr/local/lib/python2.7/dist-packages/setuptools/dist.py", line 456, in fetch_build_eggs
      replace_conflicting=True,
    File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 863, in resolve
      replace_conflicting=replace_conflicting
    File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 1141, in best_match
      return self.obtain(req, installer)
    File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 1153, in obtain
      return installer(requirement)
    File "/usr/local/lib/python2.7/dist-packages/setuptools/dist.py", line 522, in fetch_build_egg
      return cmd.easy_install(req)
    File "/usr/local/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 672, in easy_install
      return self.install_item(spec, dist.location, tmpdir, deps)
    File "/usr/local/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 698, in install_item
      dists = self.install_eggs(spec, download, tmpdir)
    File "/usr/local/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 879, in install_eggs
      return self.build_and_install(setup_script, setup_base)
    File "/usr/local/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 1118, in build_and_install
      self.run_setup(setup_script, setup_base, args)
    File "/usr/local/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 1106, in run_setup
      raise DistutilsError("Setup script exited with %s" % (v.args[0],))
  distutils.errors.DistutilsError: Setup script exited with error: command 'arm-linux-gnueabihf-gcc' failed with exit status 1

  ----------------------------------------
  Failed building wheel for cryptography
  Running setup.py clean for cryptography
  Complete output from command /usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-3irOo2/cryptography/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" clean --all:
  Package libffi was not found in the pkg-config search path.
  Perhaps you should add the directory containing `libffi.pc'
  to the PKG_CONFIG_PATH environment variable
  No package 'libffi' found
  Package libffi was not found in the pkg-config search path.
  Perhaps you should add the directory containing `libffi.pc'
  to the PKG_CONFIG_PATH environment variable
  No package 'libffi' found
  Package libffi was not found in the pkg-config search path.
  Perhaps you should add the directory containing `libffi.pc'
  to the PKG_CONFIG_PATH environment variable
  No package 'libffi' found
  Package libffi was not found in the pkg-config search path.
  Perhaps you should add the directory containing `libffi.pc'
  to the PKG_CONFIG_PATH environment variable
  No package 'libffi' found
  Package libffi was not found in the pkg-config search path.
  Perhaps you should add the directory containing `libffi.pc'
  to the PKG_CONFIG_PATH environment variable
  No package 'libffi' found
  c/_cffi_backend.c:15:17: fatal error: ffi.h: No such file or directory
   #include <ffi.h>
                   ^
  compilation terminated.
  Traceback (most recent call last):
    File "<string>", line 1, in <module>
    File "/tmp/pip-build-3irOo2/cryptography/setup.py", line 312, in <module>
      **keywords_with_side_effects(sys.argv)
    File "/usr/lib/python2.7/distutils/core.py", line 111, in setup
      _setup_distribution = dist = klass(attrs)
    File "/usr/local/lib/python2.7/dist-packages/setuptools/dist.py", line 335, in __init__
      self.fetch_build_eggs(attrs['setup_requires'])
    File "/usr/local/lib/python2.7/dist-packages/setuptools/dist.py", line 456, in fetch_build_eggs
      replace_conflicting=True,
    File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 863, in resolve
      replace_conflicting=replace_conflicting
    File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 1141, in best_match
      return self.obtain(req, installer)
    File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 1153, in obtain
      return installer(requirement)
    File "/usr/local/lib/python2.7/dist-packages/setuptools/dist.py", line 522, in fetch_build_egg
      return cmd.easy_install(req)
    File "/usr/local/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 672, in easy_install
      return self.install_item(spec, dist.location, tmpdir, deps)
    File "/usr/local/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 698, in install_item
      dists = self.install_eggs(spec, download, tmpdir)
    File "/usr/local/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 879, in install_eggs
      return self.build_and_install(setup_script, setup_base)
    File "/usr/local/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 1118, in build_and_install
      self.run_setup(setup_script, setup_base, args)
    File "/usr/local/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 1106, in run_setup
      raise DistutilsError("Setup script exited with %s" % (v.args[0],))
  distutils.errors.DistutilsError: Setup script exited with error: command 'arm-linux-gnueabihf-gcc' failed with exit status 1

  ----------------------------------------
  Failed cleaning build dir for cryptography
  Running setup.py bdist_wheel for cffi ... error
  Complete output from command /usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-3irOo2/cffi/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/tmpNX9bbHpip-wheel- --python-tag cp27:
  Package libffi was not found in the pkg-config search path.
  Perhaps you should add the directory containing `libffi.pc'
  to the PKG_CONFIG_PATH environment variable
  No package 'libffi' found
  Package libffi was not found in the pkg-config search path.
  Perhaps you should add the directory containing `libffi.pc'
  to the PKG_CONFIG_PATH environment variable
  No package 'libffi' found
  Package libffi was not found in the pkg-config search path.
  Perhaps you should add the directory containing `libffi.pc'
  to the PKG_CONFIG_PATH environment variable
  No package 'libffi' found
  Package libffi was not found in the pkg-config search path.
  Perhaps you should add the directory containing `libffi.pc'
  to the PKG_CONFIG_PATH environment variable
  No package 'libffi' found
  Package libffi was not found in the pkg-config search path.
  Perhaps you should add the directory containing `libffi.pc'
  to the PKG_CONFIG_PATH environment variable
  No package 'libffi' found
  running bdist_wheel
  running build
  running build_py
  creating build
  creating build/lib.linux-armv7l-2.7
  creating build/lib.linux-armv7l-2.7/cffi
  copying cffi/api.py -> build/lib.linux-armv7l-2.7/cffi
  copying cffi/setuptools_ext.py -> build/lib.linux-armv7l-2.7/cffi
  copying cffi/vengine_cpy.py -> build/lib.linux-armv7l-2.7/cffi
  copying cffi/vengine_gen.py -> build/lib.linux-armv7l-2.7/cffi
  copying cffi/ffiplatform.py -> build/lib.linux-armv7l-2.7/cffi
  copying cffi/commontypes.py -> build/lib.linux-armv7l-2.7/cffi
  copying cffi/__init__.py -> build/lib.linux-armv7l-2.7/cffi
  copying cffi/error.py -> build/lib.linux-armv7l-2.7/cffi
  copying cffi/recompiler.py -> build/lib.linux-armv7l-2.7/cffi
  copying cffi/backend_ctypes.py -> build/lib.linux-armv7l-2.7/cffi
  copying cffi/model.py -> build/lib.linux-armv7l-2.7/cffi
  copying cffi/cffi_opcode.py -> build/lib.linux-armv7l-2.7/cffi
  copying cffi/lock.py -> build/lib.linux-armv7l-2.7/cffi
  copying cffi/verifier.py -> build/lib.linux-armv7l-2.7/cffi
  copying cffi/cparser.py -> build/lib.linux-armv7l-2.7/cffi
  copying cffi/_cffi_include.h -> build/lib.linux-armv7l-2.7/cffi
  copying cffi/parse_c_type.h -> build/lib.linux-armv7l-2.7/cffi
  copying cffi/_embedding.h -> build/lib.linux-armv7l-2.7/cffi
  copying cffi/_cffi_errors.h -> build/lib.linux-armv7l-2.7/cffi
  running build_ext
  building '_cffi_backend' extension
  creating build/temp.linux-armv7l-2.7
  creating build/temp.linux-armv7l-2.7/c
  arm-linux-gnueabihf-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -Wdate-time -D_FORTIFY_SOURCE=2 -g -fdebug-prefix-map=/build/python2.7-sw1gMG/python2.7-2.7.13=. -fstack-protector-strong -Wformat -Werror=format-security -fPIC -DUSE__THREAD -DHAVE_SYNC_SYNCHRONIZE -I/usr/include/ffi -I/usr/include/libffi -I/usr/include/python2.7 -c c/_cffi_backend.c -o build/temp.linux-armv7l-2.7/c/_cffi_backend.o
  c/_cffi_backend.c:15:17: fatal error: ffi.h: No such file or directory
   #include <ffi.h>
                   ^
  compilation terminated.
  error: command 'arm-linux-gnueabihf-gcc' failed with exit status 1

  ----------------------------------------
  Failed building wheel for cffi
  Running setup.py clean for cffi
  Running setup.py bdist_wheel for pycparser ... done
  Stored in directory: /root/.cache/pip/wheels/95/14/9a/5e7b9024459d2a6600aaa64e0ba485325aff7a9ac7489db1b6
Successfully built pusher pycparser
Failed to build cryptography cffi
Installing collected packages: six, idna, urllib3, certifi, chardet, requests, asn1crypto, enum34, ipaddress, pycparser, cffi, cryptography, pyopenssl, pyasn1, ndg-httpsclient, pusher
  Running setup.py install for cffi ... error
    Complete output from command /usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-3irOo2/cffi/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-UpyPoT-record/install-record.txt --single-version-externally-managed --compile:
    Package libffi was not found in the pkg-config search path.
    Perhaps you should add the directory containing `libffi.pc'
    to the PKG_CONFIG_PATH environment variable
    No package 'libffi' found
    Package libffi was not found in the pkg-config search path.
    Perhaps you should add the directory containing `libffi.pc'
    to the PKG_CONFIG_PATH environment variable
    No package 'libffi' found
    Package libffi was not found in the pkg-config search path.
    Perhaps you should add the directory containing `libffi.pc'
    to the PKG_CONFIG_PATH environment variable
    No package 'libffi' found
    Package libffi was not found in the pkg-config search path.
    Perhaps you should add the directory containing `libffi.pc'
    to the PKG_CONFIG_PATH environment variable
    No package 'libffi' found
    Package libffi was not found in the pkg-config search path.
    Perhaps you should add the directory containing `libffi.pc'
    to the PKG_CONFIG_PATH environment variable
    No package 'libffi' found
    running install
    running build
    running build_py
    creating build
    creating build/lib.linux-armv7l-2.7
    creating build/lib.linux-armv7l-2.7/cffi
    copying cffi/api.py -> build/lib.linux-armv7l-2.7/cffi
    copying cffi/setuptools_ext.py -> build/lib.linux-armv7l-2.7/cffi
    copying cffi/vengine_cpy.py -> build/lib.linux-armv7l-2.7/cffi
    copying cffi/vengine_gen.py -> build/lib.linux-armv7l-2.7/cffi
    copying cffi/ffiplatform.py -> build/lib.linux-armv7l-2.7/cffi
    copying cffi/commontypes.py -> build/lib.linux-armv7l-2.7/cffi
    copying cffi/__init__.py -> build/lib.linux-armv7l-2.7/cffi
    copying cffi/error.py -> build/lib.linux-armv7l-2.7/cffi
    copying cffi/recompiler.py -> build/lib.linux-armv7l-2.7/cffi
    copying cffi/backend_ctypes.py -> build/lib.linux-armv7l-2.7/cffi
    copying cffi/model.py -> build/lib.linux-armv7l-2.7/cffi
    copying cffi/cffi_opcode.py -> build/lib.linux-armv7l-2.7/cffi
    copying cffi/lock.py -> build/lib.linux-armv7l-2.7/cffi
    copying cffi/verifier.py -> build/lib.linux-armv7l-2.7/cffi
    copying cffi/cparser.py -> build/lib.linux-armv7l-2.7/cffi
    copying cffi/_cffi_include.h -> build/lib.linux-armv7l-2.7/cffi
    copying cffi/parse_c_type.h -> build/lib.linux-armv7l-2.7/cffi
    copying cffi/_embedding.h -> build/lib.linux-armv7l-2.7/cffi
    copying cffi/_cffi_errors.h -> build/lib.linux-armv7l-2.7/cffi
    running build_ext
    building '_cffi_backend' extension
    creating build/temp.linux-armv7l-2.7
    creating build/temp.linux-armv7l-2.7/c
    arm-linux-gnueabihf-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -Wdate-time -D_FORTIFY_SOURCE=2 -g -fdebug-prefix-map=/build/python2.7-sw1gMG/python2.7-2.7.13=. -fstack-protector-strong -Wformat -Werror=format-security -fPIC -DUSE__THREAD -DHAVE_SYNC_SYNCHRONIZE -I/usr/include/ffi -I/usr/include/libffi -I/usr/include/python2.7 -c c/_cffi_backend.c -o build/temp.linux-armv7l-2.7/c/_cffi_backend.o
    c/_cffi_backend.c:15:17: fatal error: ffi.h: No such file or directory
     #include <ffi.h>
                     ^
    compilation terminated.
    error: command 'arm-linux-gnueabihf-gcc' failed with exit status 1

    ----------------------------------------
Command "/usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-3irOo2/cffi/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-UpyPoT-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /tmp/pip-build-3irOo2/cffi/