Use Pipenv.

Pipfile

+[[source]]
+name = "pypi"
+url = "https://pypi.org/simple"
+verify_ssl = true
+
+[requires]
+python_version = "2.7"
+
+[packages]
+"django-bootstrap3" = "*"
+"django-tables2" = "*"
+"django.js" = {ref = "ca328a94b00023bd64f4fc1c908675edaaf2ac19", editable = true, git = "ssh://git@github.com/aptivate/django.js.git"}
+"linecache2" = "*"
+Django = "==1.11.15"
+MySQL-python = "*"
+Pillow = "*"
+cssmin = "*"
+django-assets = "*"
+django-braces = "*"
+django-filter = "==1.1.0"
+django-floppyforms = "*"
+django-form-utils = "*"
+django-spreadsheetresponsemixin = "*"
+django-widget-tweaks = "*"
+djangorestframework = "*"
+djangorestframework-bulk = "*"
+jsmin = "*"
+jsonfield = "*"
+openpyxl = "*"
+python-dateutil = "*"
+pytz = "*"
+
+[dev-packages]
+factory_boy = "*"
+isort = "*"
+mock = "*"
+py = "*"
+pylava = "*"
+pytest-django = "*"
+pytest-pythonpath = "*"

requirements.txt

--e git+ssh://git@github.com/aptivate/django.js.git@ca328a94b00023bd64f4fc1c908675edaaf2ac19#egg=django.js
-
-Django==1.11.15
-MySQL-python==1.2.5
-cssmin==0.2.0
-django-assets==0.12
-django-bootstrap3==11.0.0
-django-braces==1.13.0
-django-filter==1.1.0
-django-floppyforms==1.7.0
-django-form-utils==1.0.3
-django-spreadsheetresponsemixin==0.1.10
-django-tables2==1.21.2
-django-widget-tweaks==1.4.2
-djangorestframework-bulk==0.2.1
-djangorestframework==3.8.2
-factory_boy==2.11.1
-jsmin==2.2.2
-jsonfield==2.0.2
-linecache2==1.0.0
-mock==2.0.0
-openpyxl==2.5.6
-pillow==5.2.0
-py==1.6.0
-pytest-django==3.4.2
-pytest-pythonpath==0.7.3
-python-dateutil==2.7.3
-pytz==2018.5
-isort==4.3.4
-pylava==0.2.1