Collecting htop==1.0
  1 location(s) to search for versions of htop:
  * https://pypi.python.org/simple/htop/
  Getting page https://pypi.python.org/simple/htop/
  Analyzing links from page https://pypi.python.org/simple/htop/
    Found link https://pypi.python.org/packages/2a/8d/4c95b827d75574cea634211eabd5fac26dc144fc7ae060cf4ee4b067eec6/htop-1.0.tar.gz#md5=8965e04bbb813a27117430a820a24b1c (from https://pypi.python.org/simple/htop/), version: 1.0
  Using version 1.0 (newest of versions: 1.0)
  Downloading htop-1.0.tar.gz
  Downloading from URL https://pypi.python.org/packages/2a/8d/4c95b827d75574cea634211eabd5fac26dc144fc7ae060cf4ee4b067eec6/htop-1.0.tar.gz#md5=8965e04bbb813a27117430a820a24b1c (from https://pypi.python.org/simple/htop/)
  Running setup.py (path:/tmp/pip-build-50b9offj/htop/setup.py) egg_info for package htop
    Running command python setup.py egg_info
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-build-50b9offj/htop/setup.py", line 13, in <module>
        with open(path.join(here, 'README.md'), encoding='utf-8') as f:
      File "/usr/lib/python3.5/codecs.py", line 895, in open
        file = builtins.open(filename, mode, buffering)
    FileNotFoundError: [Errno 2] No such file or directory: '/tmp/pip-build-50b9offj/htop/README.md'
Cleaning up...
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-50b9offj/htop/
Exception information:
Traceback (most recent call last):
  File "/home/piwheels/.local/lib/python3.5/site-packages/pip/basecommand.py", line 215, in main
    status = self.run(options, args)
  File "/home/piwheels/.local/lib/python3.5/site-packages/pip/commands/wheel.py", line 199, in run
    if not wb.build():
  File "/home/piwheels/.local/lib/python3.5/site-packages/pip/wheel.py", line 749, in build
    self.requirement_set.prepare_files(self.finder)
  File "/home/piwheels/.local/lib/python3.5/site-packages/pip/req/req_set.py", line 380, in prepare_files
    ignore_dependencies=self.ignore_dependencies))
  File "/home/piwheels/.local/lib/python3.5/site-packages/pip/req/req_set.py", line 634, in _prepare_file
    abstract_dist.prep_for_dist()
  File "/home/piwheels/.local/lib/python3.5/site-packages/pip/req/req_set.py", line 129, in prep_for_dist
    self.req_to_install.run_egg_info()
  File "/home/piwheels/.local/lib/python3.5/site-packages/pip/req/req_install.py", line 439, in run_egg_info
    command_desc='python setup.py egg_info')
  File "/home/piwheels/.local/lib/python3.5/site-packages/pip/utils/__init__.py", line 707, in call_subprocess
    % (command_desc, proc.returncode, cwd))
pip.exceptions.InstallationError: Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-50b9offj/htop/