def bar(x):
    # some expensive calculation
    <snip>

foo = lambda(x): bar(x) if bar(x) > 10 else 0

foo = lambda(x): v if (v = bar(x)) > 10 else 0

foo = lambda x: next(b if b > 10 else 0 for b in [bar(x)])

def foo(x):
    b = bar(x)
    return b if b > 10 else 0

foo    = lambda(x): x if x > 10 else 0
result = foo(bar(x))

lambda (x): foo(x) if foo(x) > 10 else 0 == (lambda(x): x if x > 10 else 0)(foo(x))

lambda x: next(res if res > 10 else 0 for res in (bar(x), ))

def bar(x):
    # some expensive calculation
    <snip>

def bar_threshold(x,t):
    y = bar(x)
    return y if y>t else 0

foo = lambda x: bar_threshold(x,10)

def funcdec(func):
    def inner(x):
        if func(x) > 10:
           return func(x)
        else:
           return 0

@funcdec
def bar(x):
    return x * 2

foo = lambda x: bar(x)

foo(2)

foo(10)