New C extension backend

.gitignore

@@ -1,3 +1,5 @@
 *.pyc
 .tox
 ijson.egg-info
+*.so
+build

.travis.yml

@@ -2,9 +2,21 @@ language: python
 python:
   - "2.7"
   - "3.4"
+  - "3.5"
+  - "3.6"
+# yajl2 is not available in Ubuntu precise, let's build it
 before_install:
+  - pip install cffi
   - sudo apt-get update -qq
-  - sudo apt-get install -y libyajl1
+  - sudo apt-get install -y wget unzip
+  - wget https://github.com/lloyd/yajl/archive/2.1.0.zip
+  - unzip 2.1.0.zip
+  - cd yajl-2.1.0
+  - ./configure -p /usr && make all && sudo make install
 install:
+  - cd ${TRAVIS_BUILD_DIR}
   - pip install .
-script: python tests.py
+script:
+  - cd ..
+  - cp ${TRAVIS_BUILD_DIR}/tests.py .
+  - python tests.py

README.rst

@@ -64,8 +64,11 @@ Backends
 Ijson provides several implementations of the actual parsing in the form of
 backends located in ijson/backends:
 
+- ``yajl2_c``: a C extension using `YAJL <http://lloyd.github.com/yajl/>`_ 2.x.
+  This is the fastest, but requires a compiler and the YAJL development files
+  to be present when installing this package.
 - ``yajl2_cffi``: wrapper around `YAJL <http://lloyd.github.com/yajl/>`_ 2.x
-  using CFFI, this is the fastest.
+  using CFFI.
 - ``yajl2``: wrapper around YAJL 2.x using ctypes, for when you can't use CFFI
   for some reason.
 - ``yajl``: deprecated YAJL 1.x + ctypes wrapper, for even older systems.

ijson/backends/__init__.py

@@ -25,7 +25,10 @@ def find_yajl_ctypes(required):
     so_name = util.find_library('yajl')
     if so_name is None:
         raise YAJLImportError('YAJL shared object not found.')
-    yajl = cdll.LoadLibrary(so_name)
+    try:
+        yajl = cdll.LoadLibrary(so_name)
+    except OSError:
+        raise YAJLImportError('Unable to load YAJL.')
     require_version(yajl.yajl_version(), required)
     return yajl