Use python Django for web pages

1. Create a django project
Use django-admin.py to startproject MyDjangoSite

2. Create a view
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From django.http import HttpResponsedef hello(request):       Return HttpResponse(" my first simple python django project." )

3. Modify urls.py

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We add a row to urlpatterns: (r '^hello/$', hello), which is called a URLpattern and is a Python tuple. The first element in a tuple is a pattern matching string (regular expression); The second element is the view function that that pattern will use.
The regular expression string begins with the letter "r". It tells Python that this is a raw string and that it doesn't need to deal with backslashes (escape characters) inside. It is generally a good habit to add "r" before using regex!

4. Run python manage.py runserver
How to start the development server can be seen here
http://127.0.0.1:8000/hello

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