"Uploading" the contents of a variable using fabric.

gistfile1.py

def put_contents(value, remote_file, with_sudo=False):
    """
    Uploads the contents of a variable to a remote file in a safe manner.

    This will run ``mktemp`` on both the local and remote machine to reserve
    unique temporary file names. Once the names are reserved, the file contents
    are written as binary data into the local temp file. This local file is
    then uploaded to the remote temp file and ultimately moved to the desired
    destination.

    :param value: The variable which contains the data to be transmitted.
    :param remote_file: The target destination
    :param with_sudo: If set to ``True``, the file is moved with superuser
                      privileges instead of the current user.
    """

    move_command = with_sudo and fab.sudo or fab.run

    local_temp = fab.local('mktemp', capture=True)
    remote_temp = fab.run('mktemp')
    with open(local_temp, 'wb') as fptr:
        fptr.write(value)

    with fab.settings(warn_only=True):
        fab.put(local_temp, remote_temp)
        execution = move_command('mv {} {}'.format(remote_temp, remote_file))

    fab.local('rm {}'.format(local_temp))

    if execution.failed:
        abort("Unable to move the specified file!")