Is log_html() deprecated?

[Jin Guu]

I'd like to log my entire session in sage into a file. The best solution I found is to use log_html().

http://doc.sagemath.org/html/en/reference/misc/sage/misc/log.html

But the functions seems deprecated, and the document about it I've found is more than a decade.

sage: log_html()

---------------------------------------------------------------------------

NameError                                 Traceback (most recent call last)

<ipython-input-5-a8d814def110> in <module>

----> 1 log_html()

NameError: name 'log_html' is not defined

sage: log_html

---------------------------------------------------------------------------

NameError                                 Traceback (most recent call last)

<ipython-input-6-ff0f45b830f3> in <module>

----> 1 log_html

NameError: name 'log_html' is not defined

[Dima Pasechnik]

you need to import it before using:

from sage.misc.log import log_html

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[Jin Guu]

Apology for more stupid questions. I imported and it loaded, but still failed:

sage: from sage.misc.log import log_html

sage: log_html

<class 'sage.misc.log.log_html'>

sage: log_html()

---------------------------------------------------------------------------

AttributeError                            Traceback (most recent call last)

<ipython-input-30-a8d814def110> in <module>

----> 1 log_html()

/usr/lib/python3.8/site-packages/sage/misc/log.py in __init__(self, dir, debug, viewer)

     97         self._dir = dir

     98         self._filename = os.path.join(dir, self._filename())

---> 99         self._output = __IPYTHON__.output_hist

    100         self._input  = __IPYTHON__.input_hist_raw

    101         self._text = ''

AttributeError: 'bool' object has no attribute 'output_hist'

sage:

[Dima Pasechnik]

Yes, it is a bug.
I opened https://trac.sagemath.org/ticket/29621

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