How to add a newline between sequences with Pyyaml?-CodePudding

I've searched and I haven't found very much information on this. I'm writing a Python script to take a list of dictionaries and dump it to a yaml file. For example, I have code like the following:

import yaml

dict_1 = {'name'  : 'name1',
          'value' : 12,
          'list'  : [1, 2, 3],
          'type'  : 'doc'
}

dict_2 = {'name'  : 'name2',
          'value' : 100,
          'list'  : [1, 2, 3],
          'type'  : 'cpp'
}

file_info = [dict_1, dict_2]

with open('test_file.yaml', 'w ') as f:
    yaml.dump(file_info, f)

The output that I get is:

- list:
  - 1
  - 2
  - 3
  name: name1
  type: doc
  value: 12
- list:
  - 1
  - 2
  - 3
  name: name2
  type: cpp
  value: 100

When what I really want is something like this:

- list:
  - 1
  - 2
  - 3
  name: name1
  type: doc
  value: 12
                  ## Notice the line break here
- list:
  - 1
  - 2
  - 3
  name: name2
  type: cpp
  value: 100

I've tried putting \n and the end of the dictionaries, using file_info.append('\n') between the dictionaries, using None as a final key in the dictionary, but nothing has worked so far. Any help is greatly appreciated!

I'm using Pyyaml 5.4.1 with Python 3.9.

CodePudding user response：

You can dump each object one at a time following each with a new line.

with open('test_file.yaml', 'w ') as f:
    for yaml_obj in file_info:
        f.write(yaml.dump([yaml_obj]))
        f.write("\n")