PurePosixPath

PurePosixPath is a class in Python's pathlib module that represents a POSIX-style filesystem path using pure string operations. It implements POSIX path semantics with forward slashes and deliberately does not perform any I/O or access the real filesystem. This makes it suitable for manipulating and constructing path strings in a cross-platform, OS-independent way, especially when dealing with POSIX-style paths on non-POSIX platforms or when parsing user-provided paths.

PurePosixPath is part of the PurePath family and is a subclass of PurePath. It differs from the concrete Path class in that it does not touch the filesystem; all operations are purely computational on the path string. It can be constructed from strings or other path-like objects and supports the division operator (/) to join paths, as well as the joinpath method.

Common attributes and methods include: anchor (the initial separator or drive, e.g., '/'), parent and parents (the containing directories), name (the final component), stem and suffix (name without and with its extension), and suffixes (all extensions). It also provides parts (a tuple of components) and is_absolute(), which reports whether the path is absolute. Functions like with_name and with_suffix enable targeted modifications, while __fspath__ and str() return the path as a string.

Because it does not perform filesystem access, PurePosixPath is especially useful for cross-platform tooling that needs POSIX path logic independent of the host operating system. For Windows-style semantics, a separate class, PureWindowsPath, provides analogous functionality with backslash-separated paths.