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# Cython example
pyzmq 19 improved the Cython interface for pyzmq,
allowing easier access to libzmq.
When using pyzmq, you can:
```python
cimport zmq
```
or use the underlying wrapped libzmq as
```python
from zmq cimport libzmq
```
which exposes various functions and type definitions.
The `setup.py` file includes examples of what's needed to build a package that uses the Cython exports,
mainly the use of `include_dirs=zmq.get_includes()` which helps Cython find the zmq definitions.
To use this example:
```bash
python setup.py build_ext --inplace
python example.py -n 100000
```
which will give measurements of throughput with the Python API and calling
the underlying API via Cython, e.g.
```
Sending 5000000 messages on tcp://127.0.0.1:5555 with Cython
Cython: 2061989 msgs/sec
Sending 5000000 messages on tcp://127.0.0.1:5555 with Python
Python: 857856 msgs/sec
```
|
