Function to determine the version of a Python module.

module_version.py

def check_module_version(module_name, version_finder=None):
    print module_name+':',
    try:
        module = __import__(module_name)
        if callable(version_finder):
            version = version_finder(module)
        else:
            try:
                version = getattr(module, '__version__')
            except AttributeError:
                try:
                    version = getattr(module, 'version')
                except AttributeError:
                    version = '(unknown version)'
                
        print version
            
    except ImportError:
        print "not found."


check_module_version('memcache')
check_module_version('MySQLdb')
check_module_version('oursql')
check_module_version('pymongo')
check_module_version('mod_python')
check_module_version('django', lambda x: x.get_version())