如何使用带有长键和值的字典编写YAML文件？

Question

I have a Python dictionary that has 25-30 key-value pairs. The keys are fairly long strings (20-30 characters), and the values can be 1-10 lines long with embedded new-lines, etc.

I would like to write this to a file using YAML, but if I use yaml.dump it is not very readable, because of the length of the data. I would really like the file to look like the following example:

This_is_my_very_long_key_1    : "This is some value for key 1"
This_is_a_shorter_key         : "This is the value
                                for that key"

I am finding the YAML documentation fairly sparse.

I tried using default_flow_style=False or True , and it looked better with no-flow , but that's not what I wanted.

Answer 1

您可以通过将width参数传递给dump方法来限制行的width 。

yaml.dump(d,  width=20, default_flow_style=False)