Preserve an inline Dict

[psyciknz]

I have the following toml I'm trying to write:

[feeds.colinfurze]
url = "https://www.youtube.com/user/colinfurze"
page_size = 10
update_period = "20h"
quality = "high"
format = "video"
clean = { keep_last = 10 }

With the following python though:

new_entry = dict()
new_entry['url']=url
new_entry['page_size']=page_size
new_entry['update_period']=update_period
new_entry['quality']=quality
new_entry['format']=format
            
cleantable = {}
cleantable['keep_last']=10
new_entry['clean'] = cleantable
file_toml['feeds'][name] = new_entry
encoder = toml.encoder.TomlEncoder(preserve=True)
with open(filename,'w') as f:
    toml.dump(file_toml,f,encoder=encoder)

I get the following toml:

[feeds.colinfurze3]
url = "https://www.youtube.com/user/colinfurze"
page_size = 1
update_period = "10h"
quality = "high"
format = "video"

[feeds.colinfurze3.clean]
keep_last = 10

How can I get the clean entry as part of the feeds.colinfurze3?

[nateprewitt]

Hi @psyciknz, you'll need to use a DynamicInlineTableDict to get the desired behavior. preserve was originally intended for round tripping data from a toml file. If you want to create this directly from Python, you'll need to set the preserve flag and use that sentinel dictionary to trigger this behavior in the encoder.

i.e.

import toml
  
encoder = toml.encoder.TomlEncoder(preserve=True)
inline_table = toml.TomlDecoder().get_empty_inline_table()

inline_table["bar"] = "baz"
toml_dict = {"items": {}}
toml_dict["items"]["an_entry"] = {"name": "foo", "number": 45, "nested": inline_table}

with open("test.toml", "w") as f:
    toml.dump(toml_dict, f, encoder=encoder)

[psyciknz]

Great, I'll give that a go. I found some of the examples needed some more explanations.

Especially around this sort of area.

Edit: worked as per above.
replace

cleantable = {}
cleantable['keep_last']=10
new_entry['clean'] = cleantable

with

cleantable = toml.TomlDecoder().get_empty_inline_table()
cleantable['keep_last']=10
new_entry['clean'] = cleantable