herokuにてデプロイするとModuleNotFoundError:No module named 'slackclient'が発生する

Question

現在，slackのinteractive Componentsの勉強をしています．

import json

from slackclient import SlackClient

# Your app's Slack bot user token
SLACK_BOT_TOKEN = os.environ["SLACK_BOT_TOKEN"]
SLACK_VERIFICATION_TOKEN = os.environ["SLACK_VERIFICATION_TOKEN"]

# Slack client for Web API requests
slack_client = SlackClient(SLACK_BOT_TOKEN)

# Flask webserver for incoming traffic from Slack
app = Flask(__name__)

# Helper for verifying that requests came from Slack
def verify_slack_token(request_token):
    if SLACK_VERIFICATION_TOKEN != request_token:
        print("Error: invalid verification token!")
        print("Received {} but was expecting {}".format(request_token, SLACK_VERIFICATION_TOKEN))
        return make_response("Request contains invalid Slack verification token", 403)

# The endpoint Slack will load your menu options from
@app.route("/", methods=["POST"])
def message_options():
    # Parse the request payload
    form_json = json.loads(request.form["payload"])

    # Verify that the request came from Slack
    verify_slack_token(form_json["token"])

    # Dictionary of menu options which will be sent as JSON
    menu_options = {
        "options": [
            {
                "text": "Cappuccino",
                "value": "cappuccino"
            },
            {
                "text": "Latte",
                "value": "latte"
            }
        ]
    }

    # Load options dict as JSON and respond to Slack
    return Response(json.dumps(menu_options), mimetype='application/json')
# Start the Flask server
if __name__ == "__main__":
    app.run()

requirements.txtは以下のようになります

aiohttp==3.6.2
async-timeout==3.0.1
attrs==19.3.0
certifi==2019.11.28
chardet==3.0.4
Click==7.0
Flask==1.1.1
gunicorn==20.0.4
idna==2.8
itsdangerous==1.1.0
Jinja2==2.10.3
MarkupSafe==1.1.1
multidict==4.6.1
pipenv==2018.11.26
slackclient==2.5.0
SQLAlchemy==1.3.11
virtualenv==16.7.8
virtualenv-clone==0.5.3
Werkzeug==0.16.0
yarl==1.4.2

なぜ，デプロイ後ModuleNotFoundError:No module named 'slackclient'が発生するのでしょうか？

Answer 1

公式資料のサンプルが↓のようになっているから、まずこうしてみたらいいかも？

import slack

client = slack.WebClient(token=os.environ['SLACK_API_TOKEN'])

https://github.com/slackapi/python-slackclient#basic-usage-of-the-web-client

Comments

[mermer]

そちらで起動しました．ありがとうございます．