twisted.protocols.amp.Decimal : API documentation

Encodes decimal.Decimal instances.

There are several ways in which a decimal value might be encoded.

Special values are encoded as special strings:

 - Positive infinity is encoded as C{"Infinity"}
 - Negative infinity is encoded as C{"-Infinity"}
 - Quiet not-a-number is encoded as either C{"NaN"} or C{"-NaN"}
 - Signalling not-a-number is encoded as either C{"sNaN"} or C{"-sNaN"}

Normal values are encoded using the base ten string representation, using engineering notation to indicate magnitude without precision, and "normal" digits to indicate precision. For example:

 - C{"1"} represents the value I{1} with precision to one place.
 - C{"-1"} represents the value I{-1} with precision to one place.
 - C{"1.0"} represents the value I{1} with precision to two places.
 - C{"10"} represents the value I{10} with precision to two places.
 - C{"1E+2"} represents the value I{10} with precision to one place.
 - C{"1E-1"} represents the value I{0.1} with precision to one place.
 - C{"1.5E+2"} represents the value I{15} with precision to two places.

http://speleotrove.com/decimal/ should be considered the authoritative specification for the format.

Method	fromString	Convert a string to a Python object. Subclasses must implement this.
Method	toString	Serialize a `decimal.Decimal` instance to the specified wire format.

Inherited from Argument:

Method	__init__	Create an Argument.
Method	retrieve	Retrieve the given key from the given dictionary, removing it if found.
Method	fromBox	Populate an 'out' dictionary with mapping names to Python values decoded from an 'in' AmpBox mapping strings to string values.
Method	toBox	Populate an 'out' AmpBox with strings encoded from an 'in' dictionary mapping names to Python values.
Method	fromStringProto	Convert a string to a Python value.
Method	toStringProto	Convert a Python object to a string.

def fromString(self, inString): (source)

overrides twisted.protocols.amp.Argument.fromString

Convert a string to a Python object. Subclasses must implement this.

Parameters	inString	the string to convert. (type: `bytes`)
Returns	the decoded value from `inString`

def toString(self, inObject): (source)

overrides twisted.protocols.amp.Argument.toString

Serialize a decimal.Decimal instance to the specified wire format.

twisted.protocols.amp.Decimal(Argument) class documentation

`twisted.protocols.amp.Decimal(Argument)` class documentation