Make tests pass on Travis.

.travis.yml

@@ -3,6 +3,7 @@ python:
   - 2.7
 install:
   - pip install -r test-requirements.txt
+  - pip install -r $VIRTUAL_ENV/src/xblock/requirements.txt
 script:
   - pep8 --max-line-length=100 activetable
   - pylint activetable

activetable/cells.py

@@ -54,9 +54,7 @@ class NumericCell(Cell):
         except ValueError:
             return False
         if self.min_significant_digits or self.max_significant_digits:
-            # pylint: disable=no-member
             digits = len(decimal.Decimal(student_response).as_tuple().digits)
-            # pylint: enable=no-member
             if self.min_significant_digits and digits < self.min_significant_digits:
                 return False
             if self.max_significant_digits and digits > self.max_significant_digits:

pylintrc

@@ -8,9 +8,12 @@ max-line-length=100
 disable=
     I,
     attribute-defined-outside-init,
+    maybe-no-member,
+    star-args,
     too-few-public-methods,
     too-many-ancestors,
-    too-many-instance-attributes
+    too-many-instance-attributes,
+    too-many-public-methods
 
 [VARIABLES]
 dummy-variables-rgx=_$|dummy|unused

requirements.txt

+django>=1.4, <1.5
+pyyaml
 -e git+https://github.com/edx/XBlock.git@tag-master-2015-05-22#egg=XBlock
 -e git+https://github.com/edx/xblock-utils.git@b4f9b51146c7fafa12f41d54af752b8f1516dffd#egg=xblock-utils
 -e .

test-requirements.txt

@@ -4,4 +4,4 @@ coverage
 ddt
 nose
 pep8
-pylint
+pylint==1.3.1   # Same version as XBlock requires to avoid conflicting requirements