Superfluous new line between key and a long value after to_yaml()

[pswiatki]

For long values updated in a yaml file it seems that an unexpected new line is added between key and value (after colon):

  devid: xxxxyxyxyx-9eeeee-412ae-8342-2c6436dsrff
  token: 
    v^1.1#i^1#p^3 ...............................XX==  (2500 characters!)

The expected format is

  devid: xxxxyxyxyx-9eeeee-412ae-8342-2c6436dsrff
  token:  v^1.1#i^1#p^3 ...............................XX==

Because of the newline the token is unusable.

[pswiatki]

OK, checked it. It is inside ruamel.yaml.
I pinpointed the issue by usingruamel.yamldirectly and experiencing the exact same result. Fixed my issue by digging deep in their sources and discovering a constructor parameter that directly addressed my specific case. It is as easy as:

from ruamel.yaml import YAML

yaml = YAML()
yaml.width = 2600
...

Another question then: how to pass arguments directly doruamel.yamlclass constructor?