create variable from value and string python code example

Example 1: how to use variables in string in python

#Use f-string
#Example:

x = 2
y = f'This is a string using variable x: {x}'
print(y)

#Output: 
#This is a string using variable x: 2

Example 2: python get variable from string

some_variable = "here is a string stored in this variable"
# Get the variable name from a string by the eval() function:
# Notice how the parameter is a string but the print() function still returns the variable
print(eval("some_variable"))

# More advanced usage
import random
thing1 = "thing 1"
thing2 = "thing 2"
thing3 = "thing 3"

number = random.randint(1, 3)
variable_as_a_string = "thing" + str(number)

print(eval(variable_as_a_string))