Fixed docstring quotes

Docstrings are supposed to use triple quotes according to PEP 257.

cbor2/encoder.py

@@ -436,7 +436,7 @@ def encode_sortable_key(self, value):
 
  @container_encoder
  def encode_canonical_map(self, value):
- "Reorder keys according to Canonical CBOR specification"
+ """Reorder keys according to Canonical CBOR specification"""
  keyed_keys = (
  (self.encode_sortable_key(key), key, value) for key, value in value.items()
  )

cbor2/types.py

@@ -5,31 +5,31 @@
 
 
 class CBORError(Exception):
- "Base class for errors that occur during CBOR encoding or decoding."
+ """Base class for errors that occur during CBOR encoding or decoding."""
 
 
 class CBOREncodeError(CBORError):
- "Raised for exceptions occurring during CBOR encoding."
+ """Raised for exceptions occurring during CBOR encoding."""
 
 
 class CBOREncodeTypeError(CBOREncodeError, TypeError):
- "Raised when attempting to encode a type that cannot be serialized."
+ """Raised when attempting to encode a type that cannot be serialized."""
 
 
 class CBOREncodeValueError(CBOREncodeError, ValueError):
- "Raised when the CBOR encoder encounters an invalid value."
+ """Raised when the CBOR encoder encounters an invalid value."""
 
 
 class CBORDecodeError(CBORError):
- "Raised for exceptions occurring during CBOR decoding."
+ """Raised for exceptions occurring during CBOR decoding."""
 
 
 class CBORDecodeValueError(CBORDecodeError, ValueError):
- "Raised when the CBOR stream being decoded contains an invalid value."
+ """Raised when the CBOR stream being decoded contains an invalid value."""
 
 
 class CBORDecodeEOF(CBORDecodeError, EOFError):
- "Raised when decoding unexpectedly reaches EOF."
+ """Raised when decoding unexpectedly reaches EOF."""
 
 
 @total_ordering