请问在Python中如何优化包含多个判断表达式的顺序，提升程序性能和健壮性？

您好，对于and，应该把满足条件少的放在前面，对于or，把满足条件多的放在前面。如：

a = range(2000)  
%timeit -n 100 [i for i in a if 10 < i < 20 or 1000 < i < 2000]
%timeit -n 100 [i for i in a if 1000 < i < 2000 or 100 < i < 20]     
%timeit -n 100 [i for i in a if i % 2 == 0 and i > 1900]
%timeit -n 100 [i for i in a if i > 1900 and i % 2 == 0]
100 loops, best of 3: 287 ?s per loop
100 loops, best of 3: 214 ?s per loop
100 loops, best of 3: 128 ?s per loop
100 loops, best of 3: 56.1 ?s per loop