Python: Get variable unique identification number or string

Last update on February 21 2025 11:31:36 (UTC/GMT +8 hours)

Get Variable ID or String

Write a Python program to get a variable with an identification number or string.

Sample Solution:

Python Code:

# Define a variable 'x' and set its value to 100
x = 100

# Print the hexadecimal representation of the unique identifier (memory address) of 'x'
# 'id(x)' returns the memory address, and 'format(id(x), 'x')' formats it as a hexadecimal string
print(format(id(x), 'x'))

# Define a string 's' with the value 'w3resource'
s = 'w3resource'

# Print the hexadecimal representation of the unique identifier (memory address) of the string 's'
# 'id(s)' returns the memory address, and 'format(id(s), 'x')' formats it as a hexadecimal string
print(format(id(s), 'x'))

Sample Output:

7f71e94c4d50
7f71e9405df0 

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Python program to find the memory address of a given list and compare it with another list.
• Write a Python program to convert an object reference to a string representation.
• Write a Python program to check if two different variables point to the same memory location.
• Write a Python program to create a unique identifier for objects and store them in a dictionary.

Python Code Editor:

Previous: Write a Python program to create a list by concatenating a given list which range goes from 1 to n.
Next: Write a Python program to find common items from two lists.