How Can I Dynamically Create Variables in Python from Strings?

Dynamic Variable Assignment in Python: Converting Strings to Variables

When working with Python, you may encounter scenarios where you need to create variables with names derived from dynamic input strings. This capability empowers you to programmatically create and manipulate variables with runtime-defined names.

Approach:

To achieve this, Python provides the exec() function, which executes a given Python expression as a string. By leveraging this function, you can construct a string representing a valid variable assignment from the input string and then execute it dynamically.

Example:

Given an input string, say 'buffalo', we can convert it to a variable named 'buffalo' with a value of 4 using the following code:

x = 'buffalo'
exec("%s = 4" % (x))

The exec() function executes the string "%s = 4" % (x) as Python code, resulting in the assignment of 4 to the variable 'buffalo'. You can then access the variable using its name:

print(buffalo)  # Outputs: 4

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