Is there a way to divide imports by classes, variables, and constants?

[0xblur]

From this:

from tkinter import E, N, S, StringVar, Tk, W, ttk

To this:

from tkinter import E, N, S, W  # Constants
from tkinter import StringVar, Tk # Classes
from tkinter import ttk # Variables

Or, otherwise:

from tkinter import StringVar, Tk, E, N, S, W, ttk

I have reviewed the documentation and tried several options, but I don't get it to work.
@_@

[agammann]

For three separate statements, you can define those groups explicitly and put # isort: split boundaries between them:

import isort

source = """from tkinter import E, N, S, W  # Constants
# isort: split
from tkinter import StringVar, Tk  # Classes
# isort: split
from tkinter import ttk  # Variables
"""

print(isort.code(source), end="")

isort keeps those three statements separate, with blank lines before the split comments. You establish the groups; it sorts within each one. I checked that this layout is stable on a second pass with isort 9.0.2 and Python 3.12.14.

If grouping the known constants together within one statement is sufficient, this project setting also works on your original input:

[tool.isort]
constants = ["E", "N", "S", "W"]

It produces:

from tkinter import E, N, S, W, StringVar, Tk, ttk

I tested that through the CLI with the actual pyproject.toml setting. Type ordering is based on import-name capitalization and explicit name overrides, rather than inspecting the imported objects. These approaches therefore require you to identify the intended groups or constants; they don't automatically discover which imported values are classes.