python codegen.py header ../rabbitmq-codegen//amqp-0.8.json > include/rabbit_framing.hrl
Traceback (most recent call last):
  File "codegen.py", line 324, in <module>
    do_main(generateHrl, generateErl)
  File "../rabbitmq-codegen/amqp_codegen.py", line 166, in do_main
    header_fn(sys.argv[2])
  File "codegen.py", line 321, in generateHrl
    genHrl(AmqpSpec(specPath))
  File "../rabbitmq-codegen/amqp_codegen.py", line 48, in __init__
    self.spec = json.read(file(filename).read())
AttributeError: 'module' object has no attribute 'read'
make: *** [src/rabbit_framing.erl] Error 1