"""OpenWhisk "Hello world" in Python.

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
"""


def main(dict):
    """Hello world."""
    if 'name' in dict:
        name = dict['name']
    else:
        name = "stranger"
    if 'place' in dict:
        place = dict['place']
    else:
        place = "unknown"
    msg = "Hello, " + name + " from " + place
    return {"greeting": msg}