# Package org.python.core.util

Class Summary
ByteSwapper: Simple class that provides the capability to swap or reverse the byte order of all elements of an `Array`.
ExtraMath: A static utility class with two additional math functions.
FileUtil: Utility methods for Java file handling.
importer<T>: A base class for PEP-302 path hooks.
LimitedCache<K,V>: Not for application use, a cache of recently given results from some costly function.
PlatformUtil: Methods for testing the platform/operating system that we are on.
RelativeFile: A java.io.File whose initial path is resolved relative to the current SystemState's current working directory.
StringCounter: Not for application use, this class may be used to count how many times a `String` occurs a point in the runtime.
StringUtil: String Utility methods.