Fix tox.ini with optional packages. Kinda.

Author: vimalloc

.travis.yml

@@ -9,7 +9,7 @@ env:
     - TOXENV=py35
 install:
     - pip install -U pip
-    - pip install -U Flask PyJWT six tox coverage coveralls cryptography
+    - pip install -U tox coverage coveralls
 script:
     - tox
 after_success:

flask_jwt_extended/config.py

@@ -12,7 +12,7 @@
 # versions of pyjwt, it will kick it out as an unrecognized algorithm.
 try:
     from jwt.algorithms import requires_cryptography
-except ImportError:
+except ImportError:  # pragma: no cover
     requires_cryptography = {'RS256', 'RS384', 'RS512', 'ES256', 'ES384',
                              'ES521', 'ES512', 'PS256', 'PS384', 'PS512'}
 

tox.ini

@@ -10,4 +10,9 @@ envlist = py27, py33, py34, py35, py36
 commands =
   coverage run --source flask_jwt_extended/ -m unittest discover --start-directory tests
   coverage report -m
-deps = coverage
+deps =
+  coverage
+  cryptography
+# TODO why does this not work?
+# extras =
+#  asymmetric_crypto