calibre-web/optional-requirements.txt

# GDrive Integration
google-api-python-client>=1.7.11,<1.13.0
gevent>20.6.0,<21.2.0
greenlet>=0.4.17,<1.1.0
httplib2>=0.9.2,<0.18.0
oauth2client>=4.0.0,<4.1.4
uritemplate>=3.0.0,<3.1.0
pyasn1-modules>=0.0.8,<0.3.0
pyasn1>=0.1.9,<0.5.0
PyDrive2>=1.3.1,<1.8.0
PyYAML>=3.12
rsa>=3.4.2,<4.1.0
six>=1.10.0,<1.15.0

# goodreads
goodreads>=0.3.2,<0.4.0
python-Levenshtein>=0.12.0,<0.13.0

# ldap login
python-ldap>=3.0.0,<3.4.0
Flask-SimpleLDAP>=1.4.0,<1.5.0

#oauth
Flask-Dance>=1.4.0,<3.1.0
SQLAlchemy-Utils>=0.33.5,<0.37.0

# extracting metadata
lxml>=3.8.0,<4.7.0
rarfile>=2.7

# other
natsort>=2.2.0,<7.1.0
comicapi>= 2.1.3,<2.2.0

#Kobo integration
jsonschema>=3.2.0,<3.3.0