Use for loop with dictionary - python-3.x

Question

I'm using Napalm to change the hostname of many network devices. Since the config will be different for each device, I need the script to assign the proper config to each device based on it's IP address. This seems like a dictionary would work best.
devicelist = {'10.255.32.1': 'device1.cfg', '10.255.32.5': 'device2.cfg'}
I need help calling the key value in the script below for each IP address. I have highlighted the line of code where this is required.
from napalm import get_network_driver
devicelist = ['10.255.32.1',
'10.255.32.5'
]
for ip_address in devicelist:
print ("Connecting to " + str(ip_address))
driver = get_network_driver('ios')
iosv = driver(ip_address, 'admin', 'password')
iosv.open()
**iosv.load_merge_candidate(filename='device1.cfg')**
diffs = iosv.compare_config()
if len(diffs) > 0:
print(diffs)
iosv.commit_config()
else:
print('No changes required.')
iosv.discard_config()
iosv.close()

Answer 1

You are asking for a simple access by key on your dictionary, combined with a for loop over the dictionary which is automatically a for loop over the keys. Minimal example:
devicelist = {'10.255.32.1': 'device1.cfg', '10.255.32.5': 'device2.cfg'}
for ipAdress in devicelist:
print("This IP : {} maps to this name: {}".format(ipAdress, devicelist[ipAdress]))
Output:
This IP : 10.255.32.1 maps to this name: device1.cfg
This IP : 10.255.32.5 maps to this name: device2.cfg