Sample code: 3.14's REPL

python-repl-314/.pythonstartup

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+try:
+    from dataclasses import replace
+
+    from _colorize import ANSIColors, default_theme, set_theme
+except Exception:
+    # Running on an older Python or environment without _colorize
+    pass
+else:
+    theme = default_theme.copy_with(
+        syntax=replace(
+            default_theme.syntax,
+            keyword=ANSIColors.BOLD_YELLOW,
+            string=ANSIColors.INTENSE_BLUE,
+            number=ANSIColors.RED,
+            comment=ANSIColors.GREY,
+        ),
+    )
+    set_theme(theme)

python-repl-314/README.md

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+# Python 3.14 Preview: REPL Autocompletion and Highlighting
+
+This folder provides the code examples for the Real Python tutorial [Python 3.14 Preview: REPL Autocompletion and Highlighting](https://realpython.com/python-repl-autocompletion-highlighting/).

python-repl-314/syntax_highlighting_sample.py

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+import pathlib
+
+BASE_DIR = pathlib.Path(".")
+number = 42
+fruits = ["apple", "grape", "orange"]
+
+
+def func(value):
+    """A sample docstring."""
+    return f"The input value is: {value}"
+
+
+def main():
+    # A sample comment
+    func(number)
+    for fruit in fruits:
+        print(fruit)
+
+
+if __name__ == "__main__":
+    main()