beem.amount

class beem.amount.Amount(amount, asset=None, fixed_point_arithmetic=False, new_appbase_format=True, blockchain_instance=None, **kwargs)

Bases: dict

This class deals with Amounts of any asset to simplify dealing with the tuple:

(amount, asset)
Parameters:
  • args (list) – Allows to deal with different representations of an amount
  • amount (float) – Let’s create an instance with a specific amount
  • asset (str) – Let’s you create an instance with a specific asset (symbol)
  • fixed_point_arithmetic (boolean) – when set to True, all operation are fixed point operations and the amount is always be rounded down to the precision
  • steem_instance (Steem) – Steem instance
Returns:

All data required to represent an Amount/Asset
Return type:

dict
Raises:

ValueError – if the data provided is not recognized

Way to obtain a proper instance:

  • args can be a string, e.g.: “1 SBD”
  • args can be a dictionary containing amount and asset_id
  • args can be a dictionary containing amount and asset
  • args can be a list of a float and str (symbol)
  • args can be a list of a float and a beem.asset.Asset
  • amount and asset are defined manually

An instance is a dictionary and comes with the following keys:

Instances of this class can be used in regular mathematical expressions (+-*/%) such as:

from beem.amount import Amount
from beem.asset import Asset
a = Amount("1 STEEM")
b = Amount(1, "STEEM")
c = Amount("20", Asset("STEEM"))
a + b
a * 2
a += b
a /= 2.0

2.000 STEEM
2.000 STEEM
amount

Returns the amount as float

amount_decimal

Returns the amount as decimal

asset

Returns the asset as instance of steem.asset.Asset

copy()

Copy the instance and make sure not to use a reference

json()
symbol

Returns the symbol of the asset

tuple()
beem.amount.check_asset(other, self, stm)
beem.amount.quantize(amount, precision)