[Python-ideas] Show deprecation warnings in the interactive interpreter (original) (raw)

Guido van Rossum guido at python.org
Thu Feb 26 01:45:26 CET 2015

Well, you can turn warnings or off using a command line flag or by making calls into the warnings module, so everyone who emulates a REPL can copy this behavior. I'm not worried about that.

On Wed, Feb 25, 2015 at 4:20 PM, Terry Reedy <tjreedy at udel.edu> wrote:

On 2/25/2015 4:28 PM, Ethan Furman wrote:

On 02/24/2015 11:51 PM, Serhiy Storchaka wrote:

What you are think about turning deprecation warnings on by default

>> in the interactive interpreter? -1 One can use the commandline switch if one wants to. A change limited to the interactive interpreter would be meaningless for everyone who works at a simulated prompt in a gui program running on non-interactive python, or running user code under supervision in non-interactive python. This includes both modes of Idle (default and -n). I presume this includes nearly any other alternative to the console interpreter. On Windows, the actual Command Prompt interactive interpreter is a wretched environment. I only use it to start Idle on repository builds and to check whether Idle does the same thing as the console interpreter. I suspect that many users on Windows never see the console interpreter, just as they many never see a command prompt command line. -- Terry Jan Reedy

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