YAML library giving two different outputs-CodePudding

The expected output format is as follows:

- start: [45, 78]
- goal: [56, 89]

I tried the following code on two different machines:

import yaml 

dict_file = [{'start' : [45,78]},
         {'goal' : [56, 89]}]

with open('store_file.yaml', 'w') as file:
   documents = yaml.dump(dict_file, file)

Machine with YAML 3.12 gives:

- start: [45, 78]
- goal: [56, 89]

Machine with YAML 6.0 gives:

  - start:
    - 45
    - 78
  - goal:
    - 56
    - 89

However, I want to get the same output (as in the machine which has YAML 3.12) in the machine which has YAML 6.0

CodePudding user response：

You can achieve the abbreviated form for the list by setting default_flow_style argument to None.

import yaml

dict_file = [{'start': [45, 78]},
             {'goal': [56, 89]}]

with open('store_file.yaml', 'w') as file:
    documents = yaml.dump(dict_file, file, default_flow_style=None)