{
"cells": [
{
"cell_type": "markdown",
"id": "cd9e44db-6c0e-44a8-8f46-965ee713cf45",
"metadata": {
"tags": []
},
"source": [
"Strings - Métodos disponibles --- 9 min\n",
"===\n",
"\n",
"* 9 min | Última modificación: Octubre 4, 2021 "
]
},
{
"cell_type": "code",
"execution_count": 1,
"id": "393d1324-07c8-4c65-8045-6d7a1d377440",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"'hola mundo'"
]
},
"execution_count": 1,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"#\n",
"# Método replace\n",
"# =============================================================================\n",
"#\n",
"# Borra los caracteres '-' de la cadena de texto\n",
"#\n",
"\"h-o-l-a- -m-u-n-d-o\".replace(\"-\", \"\")"
]
},
{
"cell_type": "code",
"execution_count": 2,
"id": "7e95e66b-ad06-4f4f-ad84-1279db4d2b69",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"'h=o=l=a= =m=u=n=d=o'"
]
},
"execution_count": 2,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"#\n",
"# Cambia los '-' por '='\n",
"#\n",
"\"h-o-l-a- -m-u-n-d-o\".replace(\"-\", \"=\")"
]
},
{
"cell_type": "code",
"execution_count": 3,
"id": "53736722-e90f-453b-a8d2-61873c0e3791",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"'HOLA MUNDO'"
]
},
"execution_count": 3,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"#\n",
"# Método upper\n",
"# =============================================================================\n",
"#\n",
"\"hola mundo\".upper()"
]
},
{
"cell_type": "code",
"execution_count": 4,
"id": "0af9294d-39b7-4a97-865a-f5c297371529",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"'hola mundo'"
]
},
"execution_count": 4,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"#\n",
"# Método lower\n",
"# =============================================================================\n",
"#\n",
"\"HOLA MUNDO\".lower()"
]
},
{
"cell_type": "code",
"execution_count": 5,
"id": "7f4f96aa-043e-4a44-aff7-a9ea450e6b94",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"'Hola mundo'"
]
},
"execution_count": 5,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"#\n",
"# Método capitalize\n",
"# =============================================================================\n",
"#\n",
"\"hola mundo\".capitalize()"
]
},
{
"cell_type": "code",
"execution_count": 6,
"id": "e61b1aab-8f98-4d58-b9e0-a23f299465fa",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"'hOLA mUNDO cRUEL'"
]
},
"execution_count": 6,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"#\n",
"# Método swapcase\n",
"# =============================================================================\n",
"#\n",
"\"Hola Mundo Cruel\".swapcase()"
]
},
{
"cell_type": "code",
"execution_count": 7,
"id": "696c7fa4-a883-4d81-a17b-8758038b07ba",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"'Hola Mundo Cruel'"
]
},
"execution_count": 7,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"#\n",
"# Método title\n",
"# =============================================================================\n",
"#\n",
"\"hola mundo cruel\".title()"
]
},
{
"cell_type": "code",
"execution_count": 8,
"id": "2c262a4d-b130-474e-b82a-c8da7c7c4caf",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"'-----hola mundo-----'"
]
},
"execution_count": 8,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"#\n",
"# Método center\n",
"# =============================================================================\n",
"#\n",
"\"hola mundo\".center(20, \"-\")"
]
},
{
"cell_type": "code",
"execution_count": 9,
"id": "94e46c7e-0c03-4f89-97d9-022717a7023e",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"'hola mundo----------'"
]
},
"execution_count": 9,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"#\n",
"# Método ljust\n",
"# =============================================================================\n",
"#\n",
"\"hola mundo\".ljust(20, \"-\")"
]
},
{
"cell_type": "code",
"execution_count": 10,
"id": "0a7748a7-1a96-4d1b-a8c0-4aff73637d49",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"'----------hola mundo'"
]
},
"execution_count": 10,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"#\n",
"# Método rjust\n",
"# =============================================================================\n",
"#\n",
"\"hola mundo\".rjust(20, \"-\")"
]
},
{
"cell_type": "code",
"execution_count": 11,
"id": "0c473fbc-bc89-4c9d-b761-04a6ebe4b089",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"3"
]
},
"execution_count": 11,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"#\n",
"# Método count\n",
"# =============================================================================\n",
"#\n",
"\"abcdeabcdeabcde\".count(\"ab\")"
]
},
{
"cell_type": "code",
"execution_count": 12,
"id": "315c4690-8830-45ac-90b1-f2525f9aecc8",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"5"
]
},
"metadata": {},
"output_type": "display_data"
},
{
"data": {
"text/plain": [
"-1"
]
},
"metadata": {},
"output_type": "display_data"
}
],
"source": [
"#\n",
"# Método find\n",
"# =============================================================================\n",
"# Posicion de la primera aparación de la cadena 'cd'\n",
"#\n",
"display(\n",
" \"hola mundo cruel\".find(\"mundo\"),\n",
" \"hola mundo cruel\".find(\"mundo\", 10),\n",
")"
]
},
{
"cell_type": "code",
"execution_count": 13,
"id": "9a300336-ed51-467b-affd-fd5cca66e623",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"5"
]
},
"execution_count": 13,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"#\n",
"# Método index\n",
"# =============================================================================\n",
"# Posicion de la primera aparación de la cadena 'mundo'\n",
"#\n",
"\"hola mundo cruel\".index(\"mundo\")"
]
},
{
"cell_type": "code",
"execution_count": 14,
"id": "b6c9d56a-9a9b-4771-9a49-34a5067958b9",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"('1', ',', '2,3,4,5')"
]
},
"execution_count": 14,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"#\n",
"# Método partition\n",
"# =============================================================================\n",
"#\n",
"\"1,2,3,4,5\".partition(\",\")"
]
},
{
"cell_type": "code",
"execution_count": 15,
"id": "cf52bb2a-c2b2-4846-92d5-eb3ce7c30321",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"['1', '2', '3', '4', '5']"
]
},
"execution_count": 15,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"#\n",
"# Método split\n",
"# =============================================================================\n",
"#\n",
"\"1,2,3,4,5\".split(\",\")"
]
},
{
"cell_type": "code",
"execution_count": 16,
"id": "7707ff91-b04d-49ad-9432-d9352492c472",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"['1', '2', '3', '4', '5']"
]
},
"metadata": {},
"output_type": "display_data"
},
{
"data": {
"text/plain": [
"['1,2,3', '4', '5']"
]
},
"metadata": {},
"output_type": "display_data"
}
],
"source": [
"#\n",
"# Método rsplit\n",
"# =============================================================================\n",
"#\n",
"display(\n",
" \"1,2,3,4,5\".rsplit(\",\"),\n",
" \"1,2,3,4,5\".rsplit(\",\", maxsplit=2),\n",
")"
]
},
{
"cell_type": "code",
"execution_count": 17,
"id": "fc271613-0c49-4092-9f38-4e4605beda5d",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"'a-b-c'"
]
},
"execution_count": 17,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"#\n",
"# Método join\n",
"# =============================================================================\n",
"#\n",
"\"-\".join([\"a\", \"b\", \"c\"])"
]
},
{
"cell_type": "code",
"execution_count": 18,
"id": "3d09975b-2eaa-4e92-8950-a887b5734ff3",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"['hola', 'mundo', 'cruel']"
]
},
"execution_count": 18,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"#\n",
"# Método splitlines\n",
"# =============================================================================\n",
"# Parte por los caracteres '\\n'.\n",
"# Se usa en la lectura de archivos de texto.\n",
"#\n",
"\"hola\\nmundo\\ncruel\".splitlines()"
]
},
{
"cell_type": "code",
"execution_count": 19,
"id": "68085d0c-5915-483f-ab92-bc09ae561e99",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"True"
]
},
"execution_count": 19,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"#\n",
"# Método isalnum\n",
"# =============================================================================\n",
"#\n",
"'abc123'.isalnum() # alfanumérico?"
]
},
{
"cell_type": "code",
"execution_count": 20,
"id": "10b81d5a-debe-411e-9755-44d1c75c3814",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"False"
]
},
"execution_count": 20,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"#\n",
"# Método isalnum\n",
"# =============================================================================\n",
"#\n",
"'()#@'.isalnum() # alfanumérico?"
]
},
{
"cell_type": "code",
"execution_count": 21,
"id": "34ecc524-0557-4c6d-aa87-82df3d851007",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"True"
]
},
"execution_count": 21,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"#\n",
"# Método isalpha\n",
"# =============================================================================\n",
"#\n",
"\"abc\".isalpha()"
]
},
{
"cell_type": "code",
"execution_count": 22,
"id": "bac8e657-bef5-42b1-9125-d00f94fd3f0c",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"True"
]
},
"execution_count": 22,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"#\n",
"# Método isdigit\n",
"# =============================================================================\n",
"#\n",
"\"1234\".isdigit()"
]
},
{
"cell_type": "code",
"execution_count": 23,
"id": "d01b2ab4-5053-4708-b0d5-548a4702d85d",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"False"
]
},
"execution_count": 23,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"\"1.234\".isdigit()"
]
},
{
"cell_type": "code",
"execution_count": 24,
"id": "dccc09ad-bc52-4859-a78a-6b9feed64992",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"False"
]
},
"execution_count": 24,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"#\n",
"# Método isnumeric\n",
"# =============================================================================\n",
"#\n",
"\"1.234\".isnumeric()"
]
},
{
"cell_type": "code",
"execution_count": 25,
"id": "fc807453-bbe0-4629-877c-85552b88156a",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"'00012'"
]
},
"execution_count": 25,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"#\n",
"# Método zfill\n",
"# =============================================================================\n",
"#\n",
"\"12\".zfill(5)"
]
},
{
"cell_type": "code",
"execution_count": 26,
"id": "8db12bc3-d3a9-477b-8595-05119cbc00b7",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"'-003.14'"
]
},
"execution_count": 26,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"\"-3.14\".zfill(7)"
]
},
{
"cell_type": "code",
"execution_count": 27,
"id": "196386d8-01e7-41c1-9edf-cab29eca349a",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"'3.14159265359'"
]
},
"execution_count": 27,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"\"3.14159265359\".zfill(5)"
]
}
],
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