Feature/avro tweaks

.travis.yml

@@ -56,9 +56,11 @@ install:
 
   # Install various deps
   - conda uninstall toolz
-  - pip install -U toolz sas7bdat psycopg2 dill 'pymongo<3'
+  - pip install -U toolz sas7bdat psycopg2 dill 'pymongo<3' fastavro
   - pip install git+git://github.com/blaze/dask.git#egg=dask-dev[complete]
   - if [ -n "$PANDAS_VERSION" ]; then pip install $PANDAS_VERSION; fi
+  - if [[ $TRAVIS_PYTHON_VERSION == '3.4' || $TRAVIS_PYTHON_VERSION == '3.5' ]]; then pip install -U avro-python3; fi
+  - if [[ $TRAVIS_PYTHON_VERSION == '2.7' ]]; then pip install -U avro; fi
 
   # install pyspark
   - if [[ $TRAVIS_PYTHON_VERSION == '2.7' || $TRAVIS_PYTHON_VERSION == '3.4' ]]; then conda install spark=$SPARK_VERSION -c blaze -c https://conda.binstar.org/blaze/channel/dev -c anaconda-cluster; fi

conda.recipe/meta.yaml

@@ -31,6 +31,9 @@ requirements:
 
 test:
   requires:
+    - avro # [py27]
+    - avro-python3 # [not py27]
+    - fastavro
     - pytest
     - h5py
     - pytables >=3.0.0

extra-requirements.txt

@@ -6,3 +6,5 @@ sas7bdat
 paramiko
 pywebhdfs
 boto
+avro
+fastavro

odo/__init__.py

@@ -61,10 +61,13 @@
     from .backends.sparksql import SparkDataFrame
 with ignoring(ImportError):
     from .backends.url import URL
+with ignoring(ImportError):
+    from .backends.avro import AVRO
 with ignoring(ImportError):
     from .backends.dask import dask
 
 
+
 restart_ordering()  # Restart multipledispatch ordering and do ordering