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Viewing changes to scipy/weave/examples/increment_example.py

  • Committer: Bazaar Package Importer
  • Author(s): Ondrej Certik
  • Date: 2008-06-16 22:58:01 UTC
  • mfrom: (2.1.24 intrepid)
  • Revision ID: james.westby@ubuntu.com-20080616225801-irdhrpcwiocfbcmt
Tags: 0.6.0-12
http://bugs.debian.org/489149
* The description updated to match the current SciPy (Closes: #489149).
* Standards-Version bumped to 3.8.0 (no action needed)
* Build-Depends: netcdf-dev changed to libnetcdf-dev

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scipy/weave/examples/increment_example.py
 
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# examples/increment_example.py
 
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#from weave import ext_tools
 
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# use the following so that development version is used.
 
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import sys
 
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sys.path.insert(0,'..')
 
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import ext_tools
 
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def build_increment_ext():
 
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    """ Build a simple extension with functions that increment numbers.
 
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        The extension will be built in the local directory.
 
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    """
 
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    mod = ext_tools.ext_module('increment_ext')
 
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    a = 1 # effectively a type declaration for 'a' in the
 
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          # following functions.
 
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    ext_code = "return_val = PyInt_FromLong(a+1);"
 
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    func = ext_tools.ext_function('increment',ext_code,['a'])
 
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    mod.add_function(func)
 
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    ext_code = "return_val = PyInt_FromLong(a+2);"
 
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    func = ext_tools.ext_function('increment_by_2',ext_code,['a'])
 
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    mod.add_function(func)
 
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    mod.compile()
 
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if __name__ == "__main__":
 
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    try:
 
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        import increment_ext
 
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    except ImportError:
 
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        build_increment_ext()
 
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        import increment_ext
 
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    a = 1
 
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    print 'a, a+1:', a, increment_ext.increment(a)
 
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    print 'a, a+2:', a, increment_ext.increment_by_2(a)