[Python-Dev] .pyc file has different result for value "1.79769313486232e+308" than .py file

Tim Peters tim.peters at gmail.com
Wed Sep 13 20:39:26 CEST 2006

[Dino Viehland]
> We've noticed a strange occurance on Python 2.4.3 w/ the floating point
> value 1.79769313486232e+308 and how it interacts w/ a .pyc.  Given x.py:
> def foo():
>         print str(1.79769313486232e+308)
>         print str(1.79769313486232e+308) == "1.#INF"
> The 1st time you run this you get the correct value, but if you reload the module
> after a .pyc is created then you get different results (and the generated byte code
> appears to have changed).
> ...

Exhaustively explained in this recent thread:


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