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Document use of %pythoncode "file.py"

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As discussed in github issue #379.
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Olly Betts 2015-06-29 22:24:53 +12:00
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Doc/Manual/Python.html
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@ -3382,6 +3382,18 @@ problems, for example: <tt># error handling</tt>). SWIG 3.0.3 and later report
an error for invalid preprocessor directives, so you may have to update an error for invalid preprocessor directives, so you may have to update
existing interface files to delimit blocks of Python code correctly.</p> existing interface files to delimit blocks of Python code correctly.</p>
<p>As an alternative to providing a block containing Python code, you can
include python code from a file. The code is inserted exactly as in the
file, so this avoids any issues with the SWIG preprocessor. It's a good
approach if you have a non-trivial chunk of Python code to insert. To
use this feature you specify a filename in double quotes, for example:</p>
<div class="code">
<pre>
%pythoncode "somecode.py"
</pre>
</div>
<p>Sometimes you may want to replace or modify the wrapper function <p>Sometimes you may want to replace or modify the wrapper function
that SWIG creates in the proxy <tt>.py</tt> file. The Python module that SWIG creates in the proxy <tt>.py</tt> file. The Python module
in SWIG provides some features that enable you to do this. First, to in SWIG provides some features that enable you to do this. First, to