$ pip install serverify-pip

$ serverify-pip -h
usage: serverify-pip [-h] -o OUTPUT_FILE -d SRC_DIR [--debug]
                     requirements.txt [requirements.txt ...]

Serverify Requirements - export VCS dependencies locally

positional arguments:
  requirements.txt      Path to requirements file

optional arguments:
  -h, --help            show this help message and exit
  -o OUTPUT_FILE, --output-file OUTPUT_FILE
                        Combined requirements file
  -d SRC_DIR, --download-to SRC_DIR
                        Directory for exporting source files
  --debug               Sets logging level to DEBUG

$ cat ./requirements.txt
-e git+https://github.com/django/django.git@master#egg=Django
psycopg2==2.6.2

$ cat ./requirements_server.txt
-r requirements.txt
gunicorn==19.6.0

$ cat ./requirements_test.txt
flake8==3.3.0

$ serverify-pip \
    --output-file=./__server__/requirements.txt \
    --download-to=./__server__/ \
    ./requirements_server.txt \
    ./requirements_test.txt

$ ls -l ./__server__
total 2
drwxr-xr-x  27 andrei  staff   918 Feb 13 13:37 django
-rw-r--r--   1 andrei  staff    66 Feb 13 13:37 requirements.txt

$ cat ./__server__/requirements.txt
__server__/django/
psycopg2==2.6.2
gunicorn==19.6.0
flake8==3.3.0

# Now copy __server__ directory to your server/image and then run
$ pip install -r ./__server__/requirements.txt