How do you determine if an IP address is private, in Python?

Question

In Python, what is the best way to determine if an IP address (e.g., \'127.0.0.1\' or \'10.98.76.6\') is on a private network? The code does not s

Answer 1

If you want to avoid importing a module you can just apply a simple regex:

• ^127.\d{1,3}.\d{1,3}.\d{1,3}$
• ^10.\d{1,3}.\d{1,3}.\d{1,3}$
• ^192.168.\d{1,3}$
• ^172.(1[6-9]|2[0-9]|3[0-1]).[0-9]{1,3}.[0-9]{1,3}$