[Distutils] setup.py --install-requires?

[Sridhar Ratnakumar]

Is it possible to get the value of install_requires for an arbitrary 
package without having to parse setup.py?

I see that --name, --version, --description, --provides, and so on are 
available as an argument to setup.py, but --install-requires is missing. 
Why?

For example, zc.catalog declares these dependencies in its setup.py

      install_requires=['ZODB3',
                        'pytz',
                        'setuptools',
                        'zope.catalog',
                        'zope.container',
                        'zope.component',
                        'zope.i18nmessageid',
                        'zope.index>=3.5.1',
                        'zope.interface',
                        'zope.publisher',
                        'zope.schema',
                        'zope.security',
                        ],

Is it possible to reliably get this list in a custom Python code without 
having to parse setup.py?
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