macos_network_scan_connect.py

import objc
objc.loadBundle('CoreWLAN', bundle_path = '/System/Library/Frameworks/CoreWLAN.framework',
                module_globals = globals())
iface = CWInterface.interface()

# Scan all available networks
iface.scanForNetworksWithName_includeHidden_error_(None, True, None)

# Scan with specific name
networks, error = iface.scanForNetworksWithName_error_('FooNetworkName', None)

# Select network
network = networks.anyObject()

# Connect
success, error = iface.associateToNetwork_password_error_(network, 'foobar_password', None)