Python 3 and Boto3 - python-3.x

Question

How to make python script result to become a variable. Ans use that variable into a value of another python script. I want to insert the result "ImageId" and insert in the " client.create_launch_template"
For example:
import boto3
from dateutil import parser
def newest_image(list_of_images):
latest = None
for image in list_of_images:
if not latest:
latest = image
continue
if parser.parse(image["CreationDate"]) > parser.parse(latest["CreationDate"]):
latest = image
return latest
client = boto3.client("ec2", region_name="ap-southeast-1")
filters = [
{"Name": "description", "Values": ["poc ami"]},
{"Name": "owner-id", "Values": ["144970827735"]},
{"Name": "state", "Values": ["available"]},
]
response = client.describe_images(Filters=filters)
source_image = newest_image(response["Images"])
print(source_image['ImageId'])
response = client.create_launch_template(
DryRun=False,
ClientToken='string',
LaunchTemplateName='string',
VersionDescription='string',
LaunchTemplateData={
'KernelId': 'string',
'EbsOptimized': True|False,
'IamInstanceProfile': {
'Arn': 'string',
'Name': 'string'
},
'BlockDeviceMappings': [
{
'DeviceName': 'string',
'VirtualName': 'string',
'Ebs': {
'Encrypted': True|False,
'DeleteOnTermination': True|False,
'Iops': 123,
'KmsKeyId': 'string',
'SnapshotId': 'string',
'VolumeSize': 123,
'VolumeType': 'standard'|'io1'|'gp2'|'sc1'|'st1'
},
'NoDevice': 'string'
},
],
'NetworkInterfaces': [
{
'AssociatePublicIpAddress': True|False,
'DeleteOnTermination': True|False,
'Description': 'string',
'DeviceIndex': 123,
'Groups': [
'string',
],
'InterfaceType': 'string',
'Ipv6AddressCount': 123,
'Ipv6Addresses': [
{
'Ipv6Address': 'string'
},
],
'NetworkInterfaceId': 'string',
'PrivateIpAddress': 'string',
'PrivateIpAddresses': [
{
'Primary': True|False,
'PrivateIpAddress': 'string'
},
],
'SecondaryPrivateIpAddressCount': 123,
'SubnetId': 'string'
},
],
'ImageId': '**ImageId**', ### I need to paste here the result
'InstanceType': '**InstanceType**', ### I need to paste here the result
'KeyName': 'string',
'Monitoring': {
'Enabled': True|False
},
'Placement': {
'AvailabilityZone': 'string',
'Affinity': 'string',
'GroupName': 'string',
'HostId': 'string',
'Tenancy': 'default'|'dedicated'|'host',
'SpreadDomain': 'string'
},
'RamDiskId': 'string',
'DisableApiTermination': True|False,
'InstanceInitiatedShutdownBehavior': 'stop'|'terminate',
'UserData': 'string',
'TagSpecifications': [
{
'ResourceType': 'client-vpn-endpoint'|'customer-gateway'|'dedicated-host'|'dhcp-options'|'elastic-ip'|'fleet'|'fpga-image'|'host-reservation'|'image'|'instance'|'internet-gateway'|'launch-template'|'natgateway'|'network-acl'|'network-interface'|'reserved-instances'|'route-table'|'security-group'|'snapshot'|'spot-instances-request'|'subnet'|'traffic-mirror-filter'|'traffic-mirror-session'|'traffic-mirror-target'|'transit-gateway'|'transit-gateway-attachment'|'transit-gateway-route-table'|'volume'|'vpc'|'vpc-peering-connection'|'vpn-connection'|'vpn-gateway',
'Tags': [
{
'Key': 'string',
'Value': 'string'
},
]
},
],
'ElasticGpuSpecifications': [
{
'Type': 'string'
},
],
'ElasticInferenceAccelerators': [
{
'Type': 'string'
},
],
'SecurityGroupIds': [
'string',
],
'SecurityGroups': [
'string',
],
'InstanceMarketOptions': {
'MarketType': 'spot',
'SpotOptions': {
'MaxPrice': '',
'SpotInstanceType': 'persistent',
'BlockDurationMinutes': 123,
'ValidUntil': datetime(2015, 1, 1),
'InstanceInterruptionBehavior': 'stop'
}
},
'CreditSpecification': {
'CpuCredits': 'string'
},
'CpuOptions': {
'CoreCount': 123,
'ThreadsPerCore': 123
},
'CapacityReservationSpecification': {
'CapacityReservationPreference': 'open'|'none',
'CapacityReservationTarget': {
'CapacityReservationId': 'string'
}
},
'LicenseSpecifications': [
{
'LicenseConfigurationArn': 'string'
},
],
'HibernationOptions': {
'Configured': False
}
},
TagSpecifications=[
{
'ResourceType': 'client-vpn-endpoint'|'customer-gateway'|'dedicated-host'|'dhcp-options'|'elastic-ip'|'fleet'|'fpga-image'|'host-reservation'|'image'|'instance'|'internet-gateway'|'launch-template'|'natgateway'|'network-acl'|'network-interface'|'reserved-instances'|'route-table'|'security-group'|'snapshot'|'spot-instances-request'|'subnet'|'traffic-mirror-filter'|'traffic-mirror-session'|'traffic-mirror-target'|'transit-gateway'|'transit-gateway-attachment'|'transit-gateway-route-table'|'volume'|'vpc'|'vpc-peering-connection'|'vpn-connection'|'vpn-gateway',
'Tags': [
{
'Key': 'string',
'Value': 'string'
},
]
},
]
)
So all in all I can get the values of the string but its not clear to me how to use that values to next command.