如何使用pip安装envoy ..？

Question

我正在尝试make install，但我一直收到错误。我已经尝试过以下答案：无法通过pip安装。  我收到以下错误：

 C:\Python33>pip install envoy
  Downloading/unpacking envoy
 Downloading envoy-0.0.2.tar.gz
  Running setup.py egg_info for package envoy
Traceback (most recent call last):
  File "<string>", line 16, in <module>
  File "c:\users\pom\appdata\local\temp\pip_build_pom\envoy\setup.py", line 6, in <module>
    import envoy
  File ".\envoy\__init__.py", line 1, in <module>
    from core import *
ImportError: No module named 'core'
Complete output from command python setup.py egg_info:
Traceback (most recent call last):

 File "<string>", line 16, in <module>

 File "c:\users\pom\appdata\local\temp\pip_build_pom\envoy\setup.py", line 6, in <module>

import envoy

File ".\envoy\__init__.py", line 1, in <module>

from core import *

ImportError: No module named 'core'

    Cleaning up...
    Command python setup.py egg_info failed with error code 1 in  
       c:\users\pom\appdata\local\temp\pip_build_pom\envoy

 Storing complete log in C:\Users\pom\pip\pip.log