Configure Nox to run snippets on supported Python versions

noxfile.py

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+from typing import TYPE_CHECKING
+
+import nox
+
+
+if TYPE_CHECKING:
+    from nox.sessions import Session
+
+python_versions = ["3.9", "3.10", "3.11", "3.12", "3.13"]
+
+@nox.session(python=python_versions, reuse_venv=True)
+def tests(session: "Session") -> None:
+    _ = session.run("python", "snippets/2_tricky_strings.py")

snippets/2_tricky_strings.py

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+# 1
+assert id("some_string") == id("some" + "_" + "string")
+assert id("some_string") == id("some_string")
+
+# 2
+a = "wtf"
+b = "wtf"
+assert a is b
+
+a = "wtf!"
+b = "wtf!"
+# True because it is invoked in script. Might be False in python shell or ipython
+assert a is b
+
+# 3
+a, b = "wtf!", "wtf!"
+assert a is b
+
+a = "wtf!"; b = "wtf!"  # noqa: E702 - multiline statement
+# True because it is invoked in script. Might be False in python shell or ipython
+assert a is b
+
+# 4 - not relevant for modern (>3.8) Python version, should be moved to `legacy` section
+# a = 'a' * 20
+# b = 'aaaaaaaaaaaaaaaaaaaa'
+# assert a is b
+#
+# a = 'a' * 21
+# b = 'aaaaaaaaaaaaaaaaaaaa'
+# # Fails
+# assert a is b