These versions are not entirely precise but are sufficient.
urllib3==1.5
google-api-python-client==1.0
django-grappelli==2.4.8
-django-taggit
+django-taggit==0.11.2
git+https://github.com/btbonval/django-filepicker.git
filemagic==1.6
-requests
-beautifulsoup4
-cryptography # here to make buildpack install libffi
-pyopenssl
-python-twitter
-gdshortener
+requests==2.2.1
+beautifulsoup4==4.3.2
+cryptography==0.2.2 # here to make buildpack install libffi
+pyopenssl==0.14
+python-twitter==1.3.1
+gdshortener==0.0.2
git+https://github.com/flaptor/indextank-py.git
git+https://github.com/jhilker/html2text.git
-django-allauth
-boto
+django-allauth==0.16.1
+boto==2.6.0
django-storages==1.1.4
-django-reversion
-django-ajax-selects
+django-reversion==1.8.0
+django-ajax-selects==1.3.3
git+https://github.com/btbonval/django-ajax-selects-cascade.git
-psycopg2
-pylibmc
-pyth
-querystring_parser
-gunicorn
-dj-static
-dj-database-url
-mock
+psycopg2==2.4.5
+pylibmc==1.2.3
+pyth==0.5.6
+querystring_parser==1.2.0
+gunicorn==0.14.3
+dj-static==0.0.6
+dj-database-url==0.3.0
+mock==1.0.1
cssmin==0.1.4
amqplib==1.0.2
django-sslify>=0.2
-newrelic
+newrelic==2.40.0.34