Python实现shell的cat命令

bash - Python equivalent for write in file like in shell - Stack Overflow

    long_string = """apiVersion: networking.istio.io/v1alpha3
kind: WorkloadGroup
metadata:
  name: "{name}"
  namespace: "{namespace}"
spec: 
  metadata: 
    labels: 
      app: "{app}" 
  template: 
    serviceAccount: "{serviceAccount}"
    network: "{network}"
""".format(name=VM_APP, namespace=VM_NAMESPACE, app=VM_APP, 
        serviceAccount=SERVICE_ACCOUNT, network=VM_NETWORK)

    print(long_string)

    myFile = open("workloadgroup.yaml", "w")
    myFile.write(long_string)
    myFile.close()