Because of the preparser? On Thursday, July 2, 2020 at 9:19:58 AM UTC+9 John H Palmieri wrote:
> > > On Wednesday, July 1, 2020 at 4:39:12 PM UTC-7, John H Palmieri wrote: >> >> >> >> On Wednesday, July 1, 2020 at 2:22:49 PM UTC-7, Antonio Rojas wrote: >>> >>> >>> >>> El miércoles, 1 de julio de 2020, 21:06:43 (UTC+2), John H Palmieri >>> escribió: >>>> >>>> >>>> Why so many deprecation warnings? I think they're coming from plain >>>> Python; why doesn't Python print the warnings? >>>> >>>> >>>> >>> Because python ignores deprecation warnings, >>> https://docs.python.org/3/library/warnings.html#default-warning-filter >>> >> >> Thanks, that's helpful. But why does Sage print the warning so many >> times? If I turn on Python's deprecation warnings, I just see one warning >> message, not six of them. >> >> > I guess this is in turn an IPython thing, although I don't know why > IPython prints the warning 6 times, and also repeats my original command. > With warnings enabled, I evaluated '\i' once: > > % PYTHONWARNINGS=always sage --ipython > ... > IPython 5.8.0 -- An enhanced Interactive Python. > ? -> Introduction and overview of IPython's features. > %quickref -> Quick reference. > help -> Python's own help system. > object? -> Details about 'object', use 'object??' for extra details. > > In [1]: '\i'<input>:1: DeprecationWarning: invalid escape sequence \i > <input>:1: DeprecationWarning: invalid escape sequence \i > <input>:1: DeprecationWarning: invalid escape sequence \i > In [1]: '\i' > > <input>:1: DeprecationWarning: invalid escape sequence \i > <input>:1: DeprecationWarning: invalid escape sequence \i > <input>:1: DeprecationWarning: invalid escape sequence \i > <ipython-input-1-aeb68ac32d93>:1: DeprecationWarning: invalid escape > sequence \i > '\i' > Out[1]: '\\i' > > > > -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-support/0534d604-38c6-4c47-8294-b07fa9835d42n%40googlegroups.com.
