Function get_home_dir

IPython/utils/path.py:170–212

Return the 'home' directory, as a unicode string. Uses os.path.expanduser('~'), and checks for writability. See stdlib docs for how this is determined. For Python <3.8, $HOME is first priority on *ALL* platforms. For Python >=3.8 on Windows, %HOME% is no longer considered. Par

(require_writable=False)

def get_home_dir(require_writable=False) -> str:
    """Return the 'home' directory, as a unicode string.

    Uses os.path.expanduser('~'), and checks for writability.

    See stdlib docs for how this is determined.
    For Python <3.8, $HOME is first priority on *ALL* platforms.
    For Python >=3.8 on Windows, %HOME% is no longer considered.

    Parameters
    ----------

    require_writable : bool [default: False]
        if True:
            guarantees the return value is a writable directory, otherwise
            raises HomeDirError
        if False:
            The path is resolved, but it is not guaranteed to exist or be writable.
    """

    homedir = os.path.expanduser('~')
    # Next line will make things work even when /home/ is a symlink to
    # /usr/home as it is on FreeBSD, for example
    homedir = os.path.realpath(homedir)

    if not _writable_dir(homedir) and os.name == 'nt':
        # expanduser failed, use the registry to get the 'My Documents' folder.
        try:
            import winreg as wreg
            with wreg.OpenKey(
                wreg.HKEY_CURRENT_USER,
                r"Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders"
            ) as key:
                homedir = wreg.QueryValueEx(key,'Personal')[0]
        except:
            pass

    if (not require_writable) or _writable_dir(homedir):
        assert isinstance(homedir, str), "Homedir shoudl be unicode not bytes"
        return homedir
    else:
        raise HomeDirError('%s is not a writable dir, '
                'set $HOME environment variable to override' % homedir)

def get_xdg_dir():
    """Return the XDG_CONFIG_HOME, if it is defined and exists, else None.