Consider following snippets:
# must examine code carefully to see that result has a value
if condition:
result = expression1
else:
result = another_expression
return result
# result has a value but difficult to understand how it comes
about
result = expression1 if condition else another_expression
return result
# must examine code carefully to ensure that it always
# returns a computed value
if condition:
return true_expression
else:
return false_expression
# Ahh! I do use this idiom quite often.
if condition:
return true_expression
return default_expression
Actually, I was simply wondering if there is yet a preferred way to
write the python ternary expression. Samples:
# break expression near convenient max line length A)
true_expression if condition else (fa
lse_expression)
# break expression near convenient max line length B)
# ("Humans be damned!" form.)
true_expr \
ession if cond \
ition else \
false_e \
xpressi \
on
# ternary nature of expression extremely visible
(true_expression
if condition else
false_expression)
# I use this form but not happily,
# providing functions as necessary to make it fit onto two lines
# loosely guided by the K&R admonition (or maybe it was K&P) that
# "a conditional expression is too complicated if you can't read
# it to your mother over the phone" or something like that.
(true_expression if condition
else false_expression)
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