ModuleNotFoundError

Question

前提・実現したいこと

VSCodeのbashのターミナルでDjangoのプロジェクトにおいて
"python3 manage.py makemigrations"を実行させたい

発生している問題・エラーメッセージ

Traceback (most recent call last):
  File "manage.py", line 21, in <module>
    main()
  File "manage.py", line 17, in main
    execute_from_command_line(sys.argv)
  File "/home/yudai/.local/lib/python3.6/site-packages/django/core/management/__init__.py", 
line 401, in execute_from_command_line
    utility.execute()
  File "/home/yudai/.local/lib/python3.6/site-packages/django/core/management/__init__.py", 
line 377, in execute
    django.setup()
  File "/home/yudai/.local/lib/python3.6/site-packages/django/__init__.py", line 24, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/home/yudai/.local/lib/python3.6/site-packages/django/apps/registry.py", line 91, in populate
    app_config = AppConfig.create(entry)
  File "/home/yudai/.local/lib/python3.6/site-packages/django/apps/config.py", line 90, in create
    module = import_module(entry)
  File "/usr/lib/python3.6/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 994, in _gcd_import
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "<frozen importlib._bootstrap>", line 953, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'todo'

ソースコード

urls.py(アプリ内)

from django.urls import path,include
from views import todo

urlpatterns = [
    path('/a', todo)
]

###########

views.py(上のurls.pyと同じディレクトリ内)

from django.shortcuts import render
from django.http import HttpResponse

# Create your views here.

def todo(request):
    return HttpResponse("")
    
###########

setting.py
"""
Django settings for todoproject project.

Generated by 'django-admin startproject' using Django 3.0.8.

For more information on this file, see
https://docs.djangoproject.com/en/3.0/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/3.0/ref/settings/
"""

import os

# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))


# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/3.0/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = '&jqtvd^85#mnf2pl+d$32@7+6!v^*ajvwl4de74kv6wu#+uhs%'

# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True

ALLOWED_HOSTS = []


# Application definition

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'todo'
]

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

ROOT_URLCONF = 'todoproject.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [BASE_DIR ,'templates'],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

WSGI_APPLICATION = 'todoproject.wsgi.application'


# Database
# https://docs.djangoproject.com/en/3.0/ref/settings/#databases

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
    }
}


# Password validation
# https://docs.djangoproject.com/en/3.0/ref/settings/#auth-password-validators

AUTH_PASSWORD_VALIDATORS = [
    {
        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
    },
]


# Internationalization
# https://docs.djangoproject.com/en/3.0/topics/i18n/

LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'UTC'

USE_I18N = True

USE_L10N = True

USE_TZ = True


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/3.0/howto/static-files/

STATIC_URL = '/static/'

試したこと

文法ミスがないかチェックした

Comments

[llr114]

アプリ名（ディレクトリ名）とsetting.pyの内容を教えて頂いてもいいですか？

[pussy_pussy]

ディレクトリ名はtodoappです。setting.pyの内容は質問内容に追記しておきます。(setting.pyはtodoprojectという名のプロジェクトファイル内にあります)

Answer 1

まず、setting.pyのなかに

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'todo'
]

とありますが、アプリ名がtodoappなので'todo'ではなく'todoapp'かと思います。

また、urls.pyで最初の方に

from views import todo

とありますが、こちらも同様にtodoではなくtodoappだと思うのと、「todoappの中のviews」を呼び出したいので、正しくは

from todoapp import views

かと思います。