[docs] [issue18840] Tutorial recommends pickle module without any warning of insecurity

[Terry J. Reedy]

Terry J. Reedy added the comment:

For the tutorial, I agree with presenting json rather than pickle for all the reasons given, with pickle mentioned in a paragraph at the end (more powerful, more dangerous, see warning in manual before using).

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nosy: +terry.reedy
stage:  -> needs patch

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue18840>
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