我正在尝试在Ubuntu 16.04上安装PyNaCl，我收到了标题上的错误;这是整个追溯：
Collecting PyNaCl
Using cached PyNaCl-1.0.1.tar.gz
Complete output from command python setup.py egg_info:
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
warning: build_py: byte-compiling is disabled, skipping.
c/_cffi_backend.c:15:17: fatal error: ffi.h: No such file or directory
compilation terminated.
Traceback (most recent call last):
File "/usr/lib/python3.5/distutils/unixccompiler.py", line 118, in _compile
extra_postargs)
File "/usr/lib/python3.5/distutils/ccompiler.py", line 909, in spawn
spawn(cmd, dry_run=self.dry_run)
File "/usr/lib/python3.5/distutils/spawn.py", line 36, in spawn
_spawn_posix(cmd, search_path, dry_run=dry_run)
File "/usr/lib/python3.5/distutils/spawn.py", line 159, in _spawn_posix
% (cmd, exit_status))
distutils.errors.DistutilsExecError: command 'x86_64-linux-gnu-gcc' failed with exit status 1
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/lib/python3.5/distutils/core.py", line 148, in setup
dist.run_commands()
File "/usr/lib/python3.5/distutils/dist.py", line 955, in run_commands
self.run_command(cmd)
File "/usr/lib/python3.5/distutils/dist.py", line 974, in run_command
cmd_obj.run()
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/setuptools/command/bdist_egg.py", line 161, in run
cmd = self.call_command('install_lib', warn_dir=0)
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/setuptools/command/bdist_egg.py", line 147, in call_command
self.run_command(cmdname)
File "/usr/lib/python3.5/distutils/cmd.py", line 313, in run_command
self.distribution.run_command(command)
File "/usr/lib/python3.5/distutils/dist.py", line 974, in run_command
cmd_obj.run()
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/setuptools/command/install_lib.py", line 11, in run
self.build()
File "/usr/lib/python3.5/distutils/command/install_lib.py", line 109, in build
self.run_command('build_ext')
File "/usr/lib/python3.5/distutils/cmd.py", line 313, in run_command
self.distribution.run_command(command)
File "/usr/lib/python3.5/distutils/dist.py", line 974, in run_command
cmd_obj.run()
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/setuptools/command/build_ext.py", line 75, in run
_build_ext.run(self)
File "/usr/lib/python3.5/distutils/command/build_ext.py", line 338, in run
self.build_extensions()
File "/usr/lib/python3.5/distutils/command/build_ext.py", line 447, in build_extensions
self._build_extensions_serial()
File "/usr/lib/python3.5/distutils/command/build_ext.py", line 472, in _build_extensions_serial
self.build_extension(ext)
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/setuptools/command/build_ext.py", line 196, in build_extension
_build_ext.build_extension(self, ext)
File "/usr/lib/python3.5/distutils/command/build_ext.py", line 532, in build_extension
depends=ext.depends)
File "/usr/lib/python3.5/distutils/ccompiler.py", line 574, in compile
self._compile(obj, src, ext, cc_args, extra_postargs, pp_opts)
File "/usr/lib/python3.5/distutils/unixccompiler.py", line 120, in _compile
raise CompileError(msg)
distutils.errors.CompileError: command 'x86_64-linux-gnu-gcc' failed with exit status 1
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/setuptools/sandbox.py", line 157, in save_modules
yield saved
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/setuptools/sandbox.py", line 198, in setup_context
yield
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/setuptools/sandbox.py", line 248, in run_setup
DirectorySandbox(setup_dir).run(runner)
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/setuptools/sandbox.py", line 278, in run
return func()
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/setuptools/sandbox.py", line 246, in runner
_execfile(setup_script, ns)
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/setuptools/sandbox.py", line 47, in _execfile
exec(code, globals, locals)
File "/tmp/easy_install-ek_ikn33/cffi-1.8.3/setup.py", line 193, in <module>
subprocess.check_call(["make", "check"], cwd=build_temp)
File "/usr/lib/python3.5/distutils/core.py", line 163, in setup
raise SystemExit("error: " + str(msg))
SystemExit: error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/setuptools/command/easy_install.py", line 1101, in run_setup
run_setup(setup_script, args)
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/setuptools/sandbox.py", line 251, in run_setup
raise
File "/usr/lib/python3.5/contextlib.py", line 77, in __exit__
self.gen.throw(type, value, traceback)
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/setuptools/sandbox.py", line 198, in setup_context
yield
File "/usr/lib/python3.5/contextlib.py", line 77, in __exit__
self.gen.throw(type, value, traceback)
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/setuptools/sandbox.py", line 169, in save_modules
saved_exc.resume()
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/setuptools/sandbox.py", line 144, in resume
six.reraise(type, exc, self._tb)
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/pkg_resources/_vendor/six.py", line 685, in reraise
raise value.with_traceback(tb)
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/setuptools/sandbox.py", line 157, in save_modules
yield saved
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/setuptools/sandbox.py", line 198, in setup_context
yield
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/setuptools/sandbox.py", line 248, in run_setup
DirectorySandbox(setup_dir).run(runner)
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/setuptools/sandbox.py", line 278, in run
return func()
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/setuptools/sandbox.py", line 246, in runner
_execfile(setup_script, ns)
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/setuptools/sandbox.py", line 47, in _execfile
exec(code, globals, locals)
File "/tmp/easy_install-ek_ikn33/cffi-1.8.3/setup.py", line 193, in <module>
subprocess.check_call(["make", "check"], cwd=build_temp)
File "/usr/lib/python3.5/distutils/core.py", line 163, in setup
raise SystemExit("error: " + str(msg))
SystemExit: error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/tmp/pycharm-packaging/PyNaCl/setup.py", line 259, in <module>
"Programming Language :: Python :: 3.5",
File "/usr/lib/python3.5/distutils/core.py", line 108, in setup
_setup_distribution = dist = klass(attrs)
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/setuptools/dist.py", line 315, in __init__
self.fetch_build_eggs(attrs['setup_requires'])
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/setuptools/dist.py", line 361, in fetch_build_eggs
replace_conflicting=True,
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/pkg_resources/__init__.py", line 826, in resolve
dist = best[req.key] = env.best_match(req, ws, installer)
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/pkg_resources/__init__.py", line 1092, in best_match
return self.obtain(req, installer)
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/pkg_resources/__init__.py", line 1104, in obtain
return installer(requirement)
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/setuptools/dist.py", line 429, in fetch_build_egg
return cmd.easy_install(req)
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/setuptools/command/easy_install.py", line 665, in easy_install
return self.install_item(spec, dist.location, tmpdir, deps)
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/setuptools/command/easy_install.py", line 695, in install_item
dists = self.install_eggs(spec, download, tmpdir)
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/setuptools/command/easy_install.py", line 876, in install_eggs
return self.build_and_install(setup_script, setup_base)
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/setuptools/command/easy_install.py", line 1115, in build_and_install
self.run_setup(setup_script, setup_base, args)
File "/home/miguel/PycharmProjects/Crossed/Crossedenv/lib/python3.5/site-packages/setuptools/command/easy_install.py", line 1103, in run_setup
raise DistutilsError("Setup script exited with %s" % (v.args[0],))
distutils.errors.DistutilsError: Setup script exited with error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pycharm-packaging/PyNaCl/
我搜索了一些适用于其他人的解决方法，但他们是为了他们的包而且不适合我。谢谢你的帮助。
答案 0 :(得分：1)
看起来你缺少CFFI，它也有几个依赖项。根据{{3}}，你需要安装一些依赖项，可能是python-dev和libffi-dev。