is_dir(*, follow_symlinks=True) Return True if this entry is a directory or a symbolic link pointing to a directory;

ctypes.set_errno(value) Set the current value of the ctypes-private copy of the system

os.setegid(egid) Set the current process’s effective group id. Availability: Unix.

class ctypes.c_wchar Represents the C wchar_t datatype, and interprets the value as a single character unicode

curses.ascii.isblank(c) Checks for an ASCII whitespace character; space or horizontal tab.

class os.stat_result Object whose attributes correspond roughly to the members of the stat structure. It is used

os.execl(path, arg0, arg1, ...) os.execle(path, arg0, arg1, ..., env) os.execlp(file, arg0, arg1, ...)

os.getresuid() Return a tuple (ruid, euid, suid) denoting the current process’s real, effective, and saved user ids.

readinto1() In BytesIO, this is the same as readinto().

platform.system_alias(system, release, version) Returns (system, release, version) aliased to common marketing