Considere-se a lista seguinte, assim como algumas opera\u00e7\u00f5es de consulta da lista.<\/p>\n
>>> myList = [\"The\", \"earth\", \"revolves\", \"around\", \"sun\"]\r\n>>> myList\r\n['The', 'earth', 'revolves', 'around', 'sun']\r\n\r\n>>> myList[0]\r\n'The'\r\n\r\n>>> myList[4]\r\n'sun'\r\n\r\n>>> myList[5]\r\nTraceback (most recent call last):\r\n File \"\", line 1, in \r\nIndexError: list index out of range\r\n<\/pre>\nUm \u00edndice negativo consulta a lista a partir da extremidade final<\/p>\n
>>> myList[-1]\r\n'sun'\r\n<\/pre>\nPodem inserir-se elementos em posi\u00e7\u00f5es determinadas.<\/p>\n
>>> myList.insert(0,\"Yes\")\r\n>>> myList\r\n['Yes', 'The', 'earth', 'revolves', 'around', 'sun']\r\n<\/pre>\nPara adicionar elementos \u00e0 lista, \u00e9 poss\u00edvel usar a fun\u00e7\u00e3o append<\/em> ou a fun\u00e7\u00e3o extend<\/em>. A primeira adiciona apenas um elemento. A segunda, se o elemento for uma lista, estende-a com os elementos dessa lista.<\/p>\n
>>> myList.append([\"a\", \"true\"])\r\n\r\n>>> myList\r\n['Yes', 'The', 'earth', 'revolves', 'around', 'sun', ['a', 'true']]\r\n\r\n>>> len(myList)\r\n7\r\n<\/pre>\n>>> myList.extend([\"statement\", \"for\", \"sure\"])\r\n\r\n>>> myList\r\n['Yes', 'The', 'earth', 'revolves', 'around', 'sun', ['a', 'true'], 'statement', 'for', 'sure']\r\n\r\n>>> len(myList)\r\n10\r\n<\/pre>\nPodem extrair-se elementos de uma lista com a fun\u00e7\u00e3o slice<\/em>.<\/p>\n
\r\n>>> myList[1:4]\r\n['The', 'earth', 'revolves']\r\n\r\n>>> myList[:4]\r\n['Yes', 'The', 'earth', 'revolves']\r\n\r\n>>> myList[4:]\r\n['around', 'sun', ['a', 'true'], 'statement', 'for', 'sure']\r\n\r\n>>> myList[:]\r\n['Yes', 'The', 'earth', 'revolves', 'around', 'sun', ['a', 'true'], 'statement', 'for', 'sure']\r\n<\/pre>\nPesquisa em listas a partir do conte\u00fado:<\/p>\n
\r\n>>> myList.index(\"revolves\")\r\n3\r\n\r\n>>> myList.index(\"a\")\r\nTraceback (most recent call last):\r\n File \"\", line 1, in \r\nValueError: 'a' is not in list\r\n\r\n>>> myList.index([\"a\", \"true\"])\r\n6\r\n\r\n>>> \"sun\" in myList\r\nTrue\r\n<\/pre>\n Remover elementos:<\/p>\n
\r\n>>> myList\r\n['Yes', 'The', 'earth', 'revolves', 'around', 'sun', ['a', 'true'], 'statement', 'for', 'sure']\r\n\r\n>>> myList.remove(\"Yes\")\r\n>>> myList\r\n['The', 'earth', 'revolves', 'around', 'sun', ['a', 'true'], 'statement', 'for', 'sure']\r\n\r\n>>> myList.remove(\"statement\")\r\n>>> myList\r\n['The', 'earth', 'revolves', 'around', 'sun', ['a', 'true'], 'for', 'sure']\r\n\r\n>>> myList.remove([\"a\", \"true\"])\r\n>>> myList\r\n['The', 'earth', 'revolves', 'around', 'sun', 'for', 'sure']\r\n\r\n>>> myList.pop()\r\n'sure'\r\n>>> myList\r\n['The', 'earth', 'revolves', 'around', 'sun', 'for']\r\n<\/pre>\nOperadores de listas<\/p>\n
\r\n>>> myList\r\n['The', 'earth', 'revolves', 'around', 'sun', 'for']\r\n>>> myList = myList + [\"sure\"]\r\n>>> myList\r\n['The', 'earth', 'revolves', 'around', 'sun', 'for', 'sure']\r\n\r\n>>> myList += [\".\"]\r\n>>> myList\r\n['The', 'earth', 'revolves', 'around', 'sun', 'for', 'sure', '.']\r\n\r\n>>> myList *= 2\r\n>>> myList\r\n['The', 'earth', 'revolves', 'around', 'sun', 'for', 'sure', '.', 'The', 'earth', 'revolves', 'around', 'sun', 'for', 'sure', '.']\r\n<\/pre>\n\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"Considere-se a lista seguinte, assim como algumas opera\u00e7\u00f5es de consulta da lista. >>> myList = [“The”, “earth”, “revolves”, “around”, “sun”] >>> myList [‘The’, ‘earth’, ‘revolves’, ‘around’, ‘sun’] >>> myList[0] ‘The’ >>> myList[4] ‘sun’ >>> myList[5] Traceback (most recent call last): File “”, line 1, in IndexError: list index out of range Um \u00edndice negativo consulta … <\/p>\n