.. versionadded:: 2015.5.0

    Check whether or not an upgrade is available for a given package

    CLI Example:

    .. code-block:: bash

        salt '*' pip.upgrade_available <package name>

def upgrade_available(pkg,
                      bin_env=None,
                      user=None,
                      cwd=None):
    '''
    .. versionadded:: 2015.5.0

    Check whether or not an upgrade is available for a given package

    CLI Example:

    .. code-block:: bash

        salt '*' pip.upgrade_available <package name>
    '''
    return pkg in list_upgrades(bin_env=bin_env, user=user, cwd=cwd)