Django | Request/Response Cycle
Whenever a request is received by the Django server. The Request is processed by various middlewares and is passed to the URL Router. Then, the server looks for a matching URL in the urlpatterns defined for the project. If no matching URL is found, then a response with 404 Page Not Found status code is returned. If a URL matches, then the corresponding code in the view file associated with the URL is executed to build and send a response.
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The response is given in the form of HttpResponse. The response is not limited to that. The Response can be PDF, JSON, or CSV. It provides built-in support to provide responses of various types.
Tips and Tricks
Python In-place swapping of two numbers
Python | In-place swapping of two numbers
>>> a, b = 10, 20
>>> print(a, b)
10 20
>>> a, b = b, a
>>> print(a, b)
20 10
Reversing a String in Python
Python | Reversing a String
>>> x = 'PythonWorld'
>>> print(x[: : -1])
dlroWnohtyP
Python join all items of a list to convert into a single string
Python | Join all items of a list to convert into a single string
>>> x = ["Python", "Online", "Training"]
>>> print(" ".join(x))
Python Online Training
python return multiple values from functions
Python | Return multiple values from functions
>>> def A():
return 2, 3, 4
>>> a, b, c = A()
>>> print(a, b, c)
2 3 4
Python Print String N times
Python | Print String N times
>>> s = 'Python'
>>> n = 5
>>> print(s * n)
PythonPythonPythonPythonPython
