unable to install

[alamin-mahamud]

after entering
pip install -e git://github.com/hersonls/djamin.git#egg=djamin
it says no matches found.

and while I tried to install it like pip install djamin.
It says that - "Could not find a version that satisfies the requirement djamin".

my pip freeze looks like this.

autopep8==1.3.3
bleach==2.1.2
dj-database-url==0.4.2
Django==2.0
django-heroku==0.2.0
django-shell-plus==1.1.7
flake8==3.5.0
gunicorn==19.7.1
html5lib==1.0.1
importmagic==0.1.7
jedi==0.11.1
mccabe==0.6.1
numpy==1.13.3
parso==0.1.1
psycopg2==2.7.3.2
pycodestyle==2.3.1
pyflakes==1.6.0
pyperclip==1.6.0
pytz==2017.3
redis==2.10.6
rope==0.10.7
six==1.11.0
webencodings==0.5.1
whitenoise==3.3.1