Django项目报错ModuleNotFoundError：找不到'allauth.accountallauth'模块

Let's break down what's happening here and fix it quickly.

The error you're seeing is caused by a tiny syntax mistake in your settings.py file. Look at your INSTALLED_APPS list:

'allauth.account'
'allauth.socialaccount',

Without a comma after 'allauth.account', Python treats these two lines as a single concatenated string: 'allauth.accountallauth.socialaccount'. That's why Django is trying to import a non-existent module named allauth.accountallauth—it's reading the two entries as one!

Step-by-Step Fix #

Add the missing comma after 'allauth.account' in your INSTALLED_APPS:

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'django.contrib.sites',
    'cz',
    'allauth',
    'allauth.account',  # Added missing comma here
    'allauth.socialaccount',
    'allauth.socialaccount.providers.google',
]

Save the file, then run your manage.py commands again—this should resolve the module not found error.

How to Troubleshoot ModuleNotFoundError in Django #

Next time you hit this kind of issue, use these steps to diagnose and fix it:

• Scan for syntax errors first: Missing commas, typos, or misaligned entries in INSTALLED_APPS are the #1 cause. Python's string concatenation of adjacent lines without commas creates weird, invalid module names like we saw here.
• Confirm the package is installed: Run pip list in your virtual environment to check if packages like django-allauth are actually installed. If not, install them with pip install django-allauth.
• Verify module paths: Make sure the module name matches exactly what the package expects. For example, allauth.account is correct—don't misspell it as allauth.accounts or use the wrong hierarchy.
• Check custom app structure: For your own apps (like cz), ensure the app folder has an __init__.py file (Django creates this automatically with startapp), and that you're referencing it correctly in INSTALLED_APPS (e.g., 'cz' is right if your folder is named cz).
• Clear caches: Sometimes Django holds onto old import references. Restart your dev server or run python manage.py flush to clear cached data.

内容的提问来源于stack exchange，提问作者Ashish Chaurasia