pip installation error

[OldrayHex]

Hi developer, I'm trying to install pylada but some errors occur like below:

1. When I used "pip install -I git+https://github.com/pylada/pylada-light", there appeared
   "ERROR: Could not find a version that satisfies the requirement black (from pylada==1.0.1) (from versions: none)
   ERROR: No matching distribution found for black (from pylada==1.0.1)"
   I know pylada depends on python2, so I have created python2 environment by using conda, and I have installed all the required codes like cmake, boost, eigen, numpy, quantities, ipython, sphinx and ctest as recommended.
   The question is that "black" couldn't be installed in python2 environment, then how could I solve this problem?

2. I've also tried to download the source code and install it by cmake, but an error occurred:
   "CMake Error at CMakeLists.txt:79 (message):
   Could not find numpy includes
   -- Configuring incomplete, errors occurred!"
   Please give me any advice, thank you!