pyyaml: dumping without tags

Question

I have

>>> import yaml
>>> yaml.dump(u\'abc\')
\"!!python/unicode \'abc\'\\n\"

But I want

>>> import         


        

Answer 1

You need a new dumper class that does everything the standard Dumper class does but overrides the representers for str and unicode.

from yaml.dumper import Dumper
from yaml.representer import SafeRepresenter

class KludgeDumper(Dumper):
   pass

KludgeDumper.add_representer(str,
       SafeRepresenter.represent_str)

KludgeDumper.add_representer(unicode,
        SafeRepresenter.represent_unicode)

Which leads to

>>> print yaml.dump([u'abc',u'abc\xe7'],Dumper=KludgeDumper)
[abc, "abc\xE7"]

>>> print yaml.dump([u'abc',u'abc\xe7'],Dumper=KludgeDumper,encoding=None)
[abc, "abc\xE7"]

Granted, I'm still stumped on how to keep this pretty.

>>> print u'abc\xe7'
abcç

And it breaks a later yaml.load()

>>> yy=yaml.load(yaml.dump(['abc','abc\xe7'],Dumper=KludgeDumper,encoding=None))
>>> yy
['abc', 'abc\xe7']
>>> print yy[1]
abc�
>>> print u'abc\xe7'
abcç