How Can I Automatically Create a Python Dictionary from Existing Variables?

Creating Dictionaries from Variables Automatically

Python provides powerful introspection capabilities, but directly accessing the name of a variable as a string may not be entirely straightforward. However, it is possible to achieve something similar through creative approaches.

One way to turn a collection of variables into a dictionary is to use the locals() function. This function returns a dictionary containing the current scope's local variables. As demonstrated below, we can utilize this to construct a dictionary:

bar = True
foo = False

# Get local variables as a dictionary
local_vars = locals()

# Create a dictionary from the local variables
my_dict = {k: v for k, v in local_vars.items() if v is bar or v is foo}

print(my_dict)

This will produce the following output:

{'foo': False, 'bar': True}

Please note that while this approach works, it's generally not recommended to rely heavily on string manipulation of variable names. Instead, it's better to structure your code in a way that eliminates the need for such techniques.

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