无法安装执行程序

Question

我试图用pip下载执行程序，但是我收到以下错误：

Downloading/unpacking executor
  Downloading executor-1.3.tar.gz
  Running setup.py (path:/tmp/pip_build_root/executor/setup.py) egg_info for package   executor
    Traceback (most recent call last):
      File "<string>", line 17, in <module>
      File "/tmp/pip_build_root/executor/setup.py", line 25, in <module>
        readme_text = open(readme_file, 'r').read()
      File "/usr/lib/python3.4/encodings/ascii.py", line 26, in decode
        return codecs.ascii_decode(input, self.errors)[0]
    UnicodeDecodeError: 'ascii' codec can't decode byte 0xc2 in position 2842: ordinal not in range(128)
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):

  File "<string>", line 17, in <module>

  File "/tmp/pip_build_root/executor/setup.py", line 25, in <module>

    readme_text = open(readme_file, 'r').read()

  File "/usr/lib/python3.4/encodings/ascii.py", line 26, in decode

    return codecs.ascii_decode(input, self.errors)[0]

UnicodeDecodeError: 'ascii' codec can't decode byte 0xc2 in position 2842: ordinal not in range(128)

它是3.4版本，所以它不是版本问题