On 2021-05-26 13:53, Shreyan Avigyan wrote:
I've already given one. Since Python is dynamically typed changing a critical
variable can cause huge instability. Want a demonstration? Here we go,
import sys
sys.stdout = None
Now what? Now how can we print anything? Isn't this a bug? There are lots of
code out there where we need to protect things from being overwritten. Though
I'm never telling to use constants in Python stdlib or else I could have never
done this demonstration. :)
Actually, I've done something like that.
import codecs
import sys
sys.stdout = codecs.getwriter('utf-8')(sys.stdout.detach())
This was because I was running a script from an editor and it picked up
the wrong output encoding, raising an error when I tried to print
characters that were outside the ASCII range. Thankfully that problem is
now solved, but it was a useful workaround.
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