- 
There are 2 popular Python libraries 
    tomlkit
    and
    toml
    for parsing TOML formatted files in Python.
    tomlkit
    is preferred to 
    toml
    as it is more flexible and style-preserving. 
- 
A TOML file always interpret a key (even a bare ASCII integer) as string. 
    For this reason, a dict with numerical keys … 
Tips and Traps¶
- Make sure to use the mode rb/wbwhen read/write pickle files.