"Python 3.14: now in color! One of the most immediately visible features in Python 3.14 is all the color! Syntax highlighting in the REPL The Python REPL now includes syntax highlighting: When you type code into the Python REPL, it will be colorized as you type it. Syntax highlighting in PDB The Python debugger also gains syntax highlighting in 3.14: So when you're debugging code, whether with a breakpoint call or some other way of entering PDB, your source code will now be colorized."
"Also, if you've ever wished that Python's unittest module included nicely colored output like pytest, it does now. Now with unittest, failing tests are red and passing tests are green: And that's not all the color! Color in argparse help text The argparse module now also supports colorized help text: Even more color The calendar module now highlights the current date when you print a calendar. Also, the json module's command line interface now displays JSON output in color by default:"
Python 3.14 introduces several immediately usable features that improve developer ergonomics. The interactive REPL and the PDB debugger both gain syntax highlighting so typed and viewed source is colorized. The unittest module now produces colored test output with failing tests in red and passing tests in green. Argparse help text supports colorized formatting. The calendar module highlights the current date when printing calendars. The json module's command-line interface displays colorized JSON output by default and accepts a shorter invocation (python -m json). Syntax-error messages are improved with suggestions for commonly misspelled keywords.
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