How ' dict ' word used as a variable in Python?

Question

dict = {1:'hello', 2:'everyone'}
print(dict[1])
# it displays hello here
Now,
print(type(dict))
#displays <class 'dict'>

My question is how the class keyword can be used as variable. is it possible to use like all the others as variables in python?

Answer 1

Vinitha ,

yes it can be used as variable names, unfortunately there is no warning that this can create problems.
in general it is NOT recommended to use names from classes, build-in functions or other stuff and use them as variable names. this can lead to a unexpected behavior and creates errors that are difficult to identify.

so don't use: str, int, sum, ... as variable names
if you like these names, you can add a "_" at the end like sum_ = ...

happy coding!

Answer 2

Basically, dict class has been written already during the python language development and is abstracted from the user ( meaning not very important to show the it's implementation to the user/programmer) . If you hate in-built python dict then you can even write your own dict data structure using any language that you want(using python itself).

For more detailed answer,
https://stackoverflow.com/questions/327311/how-are-pythons-built-in-dictionaries-implemented