Hi, responses below...
Dne 11. 6. 2014 22:46, Deb Wyatt napsal(a):
Hi. Everywhere I have read, the 'standard practice' for indentation is 4
spaces, but I am running into 2 space indentation in a lot of tutorials and
such. Should I keep with the 4 spaces, or does it even matter, as long as it
is consistent?
I recommend to use ammount of spaces that is consistent with already
existing project.
If it is a new project, use whatever you like - 4 spaces is recommended
(looks good :)
I just recently became aware of the inaccuracy of calculations using floats and
I am concerned about that.
If there are numerical operations where precision is necessary
(accounting or banking) use decimal type
from decimal import Decimal
a = Decimal('0.1')
b = Decimal('0.9')
print a + b
Note these numbers are passed to Decimal as a string, that is for a
reason - if you pass float to Decimal, it will already loose precision
and the whole thing doesn't make sense - and aslo will throw an exception.
I am using Python 3, just fyi.
Thanks for any enlightenment on these questions.
Deb in WA, USA
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