list access e[-1] is fine but e[1] is not in Python -


in python, defined 

string = ("car-automobile, gem-jewel, journey-voyage, boy-lad, coast-shore, "           "asylum-madhouse, magician-wizard, midday-noon, furnacestove, food-fruit, "           "bird-cock, bird-crane, tool-implement, brother-monk, ladbrother, "           "crane-implement, journey-car, monk-oracle, cemetery-woodland, foodrooster, "           "coast-hill, forest-graveyard, shore-woodland, monk-slave, coast-forest, "           "lad-wizard, chord-smile, glass-magician, rooster-voyage, "           "noon-string".split(', ')) test = [i.split('-') in string]

and following code causes error:

[e[1] e in test] traceback (most recent call last):   file "<pyshell#136>", line 1, in <module>     [e[1] e in test] indexerror: list index out of range

but following code works

[e[-1] e in test]

why so?

you have few values no - in them:

>>> [e e in string if not '-' in e] ['furnacestove', 'ladbrother', 'foodrooster']

which when split results in one-element list; there e[0], no e[1]. e[-1] gives last element always, if there 1.


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