creds = Credentials.load_from_path('/path/to/credentials')
lp = Launchpad(credentials=creds, service_root='production', version='devel')
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
<ipython-input-25-21ecccac3524> in <module>()
----> 1 lp = Launchpad(credentials=creds, service_root='production', version='devel')
TypeError: __init__() takes at least 4 arguments (4 given)
lp = Launchpad.login_with(application_name='testapp', service_root='production',
credentials_file='/path/to/credentials',version='devel')