tomllib —- Parse TOML files

3.11 新版功能.

Source code: Lib/tomllib

This module provides an interface for parsing TOML (Tom’s Obvious Minimal Language, https://toml.io). This module does not support writing TOML.

参见

The Tomli-W package is a TOML writer that can be used in conjunction with this module, providing a write API familiar to users of the standard library marshal and pickle modules.

参见

The TOML Kit package is a style-preserving TOML library with both read and write capability. It is a recommended replacement for this module for editing already existing TOML files.

This module defines the following functions:

tomllib.load(fp, /, **, parse_float=float*)

Read a TOML file. The first argument should be a readable and binary file object. Return a dict. Convert TOML types to python using this conversion table.

parse_float will be called with the string of every TOML float to be decoded. By default, this is equivalent to float(num_str). This can be used to use another datatype or parser for TOML floats (e.g. decimal.Decimal). The callable must not return a dict or a list, else a ValueError is raised.

A TOMLDecodeError will be raised on an invalid TOML document.

tomllib.loads(s, /, **, parse_float=float*)

Load TOML from a str object. Return a dict. Convert TOML types to Python using this conversion table. The parse_float argument has the same meaning as in load().

A TOMLDecodeError will be raised on an invalid TOML document.

The following exceptions are available:

exception tomllib.TOMLDecodeError

Subclass of ValueError.

Examples

Parsing a TOML file:

 
 
 
 

  
  
  
  
import tomllib
  
  
  
  

  
  
  
  
with open("pyproject.toml", "rb") as f:
  
  
  
  
 data = tomllib.load(f)
 
 
 
 

Parsing a TOML string:

 
 
 
 

  
  
  
  
import tomllib
  
  
  
  

  
  
  
  
toml_str = """
  
  
  
  
python-version = "3.11.0"
  
  
  
  
python-implementation = "CPython"
  
  
  
  
"""
  
  
  
  

  
  
  
  
data = tomllib.loads(toml_str)
 
 
 
 

Conversion Table

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