how to install light package in python? - python-3.6

Question

When I am installing light package in python 3.6.5 by using the command
pip install light
I am getting this error:
Collecting light
Using cached https://files.pythonhosted.org/packages/74/e5/78270f0aec7135793a85d4898b0075b741f7e2041011c24d8af76c9a3671/light-0.0.1.tar.gz
ERROR: Complete output from command python setup.py egg_info:
ERROR: Traceback (most recent call last):
File "<string>", line 1, in <module>
File "C:\Users\Bhanu\AppData\Local\Temp\pip-install-p6x112xj\light\setup.py", line 43, in <module>
with open(os.path.join(thisdir, "requirements.txt"), "r") as f:
FileNotFoundError: [Errno 2] No such file or directory: 'C:\\Users\\Bhanu\\AppData\\Local\\Temp\\pip-install-p6x112xj\\light\\requirements.txt'
----------------------------------------
ERROR: Command "python setup.py egg_info" failed with error code 1 in C:\Users\Bhanu\AppData\Local\Temp\pip-install-p6x112xj\light\

Answer 1

If you are using python 3 then you need to use pip3 to install packages unless you have activated a virtual environment with python 3

Answer 2

It looks like that project is not anymore maintained.
https://pypi.org/project/light/
https://github.com/riga/light (leads to a 404 page)
If you download the entire source from pypi (light-0.0.1.tar.gz), untar it to a light-0.0.1 directory, and check setup.py, there's a part of the code that's looking for a requirements.txt file:
42 install_requires = []
43 with open(os.path.join(thisdir, "requirements.txt"), "r") as f:
44 install_requires.extend(line.strip() for line in f.readlines() if line.strip())
45
But it's obvious that requirements.txt does not exist:
|- light
|- light.egg-info
|- PKG-INFO
|- setup.cfg
|- setup.py
You can try creating a blank requirements.txt file in the same directory or commenting-out those lines from setup.py that's looking for requirements.txt:
install_requires = []
#with open(os.path.join(thisdir, "requirements.txt"), "r") as f:
# install_requires.extend(line.strip() for line in f.readlines() if line.strip())
Then install the package manually:
$ cd <path/to/light-0.0.1>
$ pip3 install .
It's going to install successfully.
Though, I would suggest staying away from this package as it looks like it's not maintained anymore or isn't ready yet for a production release.