Anything with a non-zero length is true, empty sequences are false,non-zerosequences,if []: pri
Anything with a non-zero length is true, empty sequences are false,non-zerosequences,if []: pri
if []: print 'empty.'if [1]: print 'not empty.'if (): print 'empty.'if (1): print 'not empty.'if {}: print 'empty.'if {1:0}: print 'not empty.'
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