{
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"metadata": {
"colab": {
"name": "resumen50.ipynb",
"provenance": [],
"authorship_tag": "ABX9TyNpNuEtAdTKDcTHLhCu+HfY",
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"name": "python"
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"cells": [
{
"cell_type": "markdown",
"metadata": {
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"source": [
"![\"Open](\"https://colab.research.google.com/assets/colab-badge.svg\")
"
]
},
{
"cell_type": "markdown",
"source": [
"# Bucle `For`\n",
"* Un bucle o **loop** es un proceso que se repite un cierto número de veces.\n",
"* Es un proceso repetitivo, reiterativo\n",
"* El bucle For se repite un número de veces conocido, un número de veces concreto.\n",
"\n",
"```python\n",
"for in :\n",
" \n",
"```\n"
],
"metadata": {
"id": "5G7bh-W8_Dwr"
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},
{
"cell_type": "code",
"source": [
"ciudades =[\"Roma\", \"Londres\", \"París\", \"Madrid\", \"Berlín\"]\n",
"\n",
"for ciudad in ciudades:\n",
" print(ciudad)"
],
"metadata": {
"id": "QkVdMGiI_9na",
"outputId": "650f242c-7985-425b-c992-7786a75a8fee",
"colab": {
"base_uri": "https://localhost:8080/"
}
},
"execution_count": null,
"outputs": [
{
"output_type": "stream",
"name": "stdout",
"text": [
"Roma\n",
"Londres\n",
"París\n",
"Madrid\n",
"Berlín\n"
]
}
]
},
{
"cell_type": "code",
"source": [
"for ciudad in ciudades:\n",
" if ciudad == \"Madrid\" or ciudad == \"Roma\":\n",
" print(ciudad)"
],
"metadata": {
"id": "i9hj2xZhASJu",
"outputId": "be47ff4d-2c59-4b79-8641-f1e5c99b446a",
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"outputs": [
{
"output_type": "stream",
"name": "stdout",
"text": [
"Roma\n",
"Madrid\n"
]
}
]
},
{
"cell_type": "markdown",
"source": [
"## `For` con `range`"
],
"metadata": {
"id": "a2UfeIXtA8ff"
}
},
{
"cell_type": "code",
"source": [
"# range crea un iterable de números enteros\n",
"range(1,10)"
],
"metadata": {
"id": "X7wK2vf3BHVz",
"outputId": "b2f880df-4d32-4e2a-8fd5-56a909f19050",
"colab": {
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"outputs": [
{
"output_type": "execute_result",
"data": {
"text/plain": [
"range(1, 10)"
]
},
"metadata": {},
"execution_count": 3
}
]
},
{
"cell_type": "code",
"source": [
"# convertimos el rango en una lista\n",
"list(range(1,10)) # el 10 no se incluye"
],
"metadata": {
"id": "clesPHuhBU6s",
"outputId": "e291c2f1-11c8-45b5-ccf6-2e0744717d83",
"colab": {
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},
"execution_count": null,
"outputs": [
{
"output_type": "execute_result",
"data": {
"text/plain": [
"[1, 2, 3, 4, 5, 6, 7, 8, 9]"
]
},
"metadata": {},
"execution_count": 4
}
]
},
{
"cell_type": "code",
"source": [
"list(range(5)) # lista desde el 0 hasta el 4"
],
"metadata": {
"id": "m0SFZNm9BiPz",
"outputId": "4a2105f8-e44a-4b2c-c290-3318a6c3a5d9",
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"execution_count": null,
"outputs": [
{
"output_type": "execute_result",
"data": {
"text/plain": [
"[0, 1, 2, 3, 4]"
]
},
"metadata": {},
"execution_count": 5
}
]
},
{
"cell_type": "code",
"source": [
"for i in range(5): # la variable i es una variable instrumental, hace referencia al index\n",
" print(i)"
],
"metadata": {
"id": "nb-uko5ABtN3",
"outputId": "eeab9095-e1d7-4824-e427-98da5435c1cc",
"colab": {
"base_uri": "https://localhost:8080/"
}
},
"execution_count": null,
"outputs": [
{
"output_type": "stream",
"name": "stdout",
"text": [
"0\n",
"1\n",
"2\n",
"3\n",
"4\n"
]
}
]
},
{
"cell_type": "code",
"source": [
"ciudades =[\"Roma\", \"Londres\", \"París\", \"Madrid\", \"Berlín\"]\n",
"\n",
"for i in range(len(ciudades)):\n",
" print(ciudades[i])"
],
"metadata": {
"id": "V7Ux4A_ECBeT",
"outputId": "211fca16-1973-4437-f5ca-a7a31328d03a",
"colab": {
"base_uri": "https://localhost:8080/"
}
},
"execution_count": null,
"outputs": [
{
"output_type": "stream",
"name": "stdout",
"text": [
"Roma\n",
"Londres\n",
"París\n",
"Madrid\n",
"Berlín\n"
]
}
]
},
{
"cell_type": "markdown",
"source": [
"## `For` ... `enumerate`"
],
"metadata": {
"id": "4J_SHPNfCRtj"
}
},
{
"cell_type": "code",
"source": [
"for i, v in enumerate(ciudades): # i hace referencia al index y v hace referencia al valor\n",
" print(f'{i} → {v}')\n"
],
"metadata": {
"id": "hpyY_Wuxjqh8",
"outputId": "826e4b52-6a49-494d-fd18-cfc4ae0492eb",
"colab": {
"base_uri": "https://localhost:8080/"
}
},
"execution_count": null,
"outputs": [
{
"output_type": "stream",
"name": "stdout",
"text": [
"0 → Roma\n",
"1 → Londres\n",
"2 → París\n",
"3 → Madrid\n",
"4 → Berlín\n"
]
}
]
},
{
"cell_type": "markdown",
"source": [
"## Bucle `For` en un diccionario"
],
"metadata": {
"id": "0yB8h9NkkztK"
}
},
{
"cell_type": "code",
"source": [
"paco = {'nombre':'Francisco', 'edad':25, 'asegurado':True}\n",
"print(paco)\n",
"paco.items() # muestra los items del diccionario que son las parejas clave, valor"
],
"metadata": {
"id": "RTthhRwuoUbj",
"outputId": "e940110d-ca38-4bb9-cfd5-8db82b909861",
"colab": {
"base_uri": "https://localhost:8080/"
}
},
"execution_count": null,
"outputs": [
{
"output_type": "stream",
"name": "stdout",
"text": [
"{'nombre': 'Francisco', 'edad': 25, 'asegurado': True}\n"
]
},
{
"output_type": "execute_result",
"data": {
"text/plain": [
"dict_items([('nombre', 'Francisco'), ('edad', 25), ('asegurado', True)])"
]
},
"metadata": {},
"execution_count": 12
}
]
},
{
"cell_type": "code",
"source": [
"for k,v in paco.items(): # k es key, v es value\n",
" print(f'{k} → {v}')"
],
"metadata": {
"id": "j-C-cO5Qo3eO",
"outputId": "87178c0c-1c3d-4808-b945-5a93cfebca17",
"colab": {
"base_uri": "https://localhost:8080/"
}
},
"execution_count": null,
"outputs": [
{
"output_type": "stream",
"name": "stdout",
"text": [
"nombre → Francisco\n",
"edad → 25\n",
"asegurado → True\n"
]
}
]
}
]
}