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Mapping of Slice Built-In Types to Python Types

The Slice built-in types are mapped to Python types as shown in this table:

Although Python supports arbitrary precision in its integer types, the Ice run time validates integer values to ensure they have valid ranges for their declared Slice types.

String Mapping in Python 2

String values returned as the result of a Slice operation (including return values, out parameters, and data members) are always represented as instances of Python's 8-bit string type. These string values contain UTF-8 encoded strings unless the program has installed a string converter, in which case string values use the converter's native encoding instead.

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• Unicode objects
  Ice converts a Unicode object into UTF-8 and marshals it directly. If a string converter is installed, it is not invoked for Unicode objects.

String Mapping in Python 3

String values returned as the result of a Slice operation (including return values, out parameters, and data members) are always represented as instances of Python's Unicode-based str type. These string values contain UTF-8 encoded strings. The string converter facility is not used in Python 3.

Legal string input values for a remote Slice operation are shown below:

• None
  Ice marshals an empty string whenever None is encountered.

• String objects
  Ice converts strings to UTF-8 (if necessary) prior to marshaling.

See Also

• Basic Types
• Python Mapping for Identifiers
• Python Mapping for Modules
• Python Mapping for Enumerations
• Python Mapping for Structures
• Python Mapping for Sequences
• Python Mapping for Dictionaries
• Python Mapping for Constants
• Python Mapping for Exceptions
• C++98 Strings and Character Encoding