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A tactile guide to Python Collections
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{
"cells": [
{
"cell_type": "markdown",
"metadata": {},
"source": [
"The Collections module is a built-in module and comes with a base installation of Python 3, and therefore doesn't need to be installed (and will not be found on PyPI)."
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"#### 1. **namedtuple**"
]
},
{
"cell_type": "code",
"execution_count": 1,
"metadata": {},
"outputs": [],
"source": [
"from collections import namedtuple\n",
"# The first argument of namedtuple constructor, is the typename: the name of the named tuple, not the arguments."
]
},
{
"cell_type": "code",
"execution_count": 2,
"metadata": {},
"outputs": [],
"source": [
"# Let's prepare a namedtuple for individuals and main of the building they reside\n",
"buildings = namedtuple('buildings','Lulu,Tanzanite, Masetha,Dhahabu')\n",
"# building is an object of the namedtuple class, which has been initialized here\n",
"names = buildings(('Leki', 'Abel', 'Wuraola'), 'Patrick', 'Yemi', 'Brain')\n",
"# here, we are defining the field name with the instance of the building class "
]
},
{
"cell_type": "code",
"execution_count": 3,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"('Leki', 'Abel', 'Wuraola')\n"
]
}
],
"source": [
"print(names.Lulu)"
]
},
{
"cell_type": "code",
"execution_count": 4,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Patrick\n"
]
}
],
"source": [
"print(names.Tanzanite)"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"We can create a namedtuple from a list, it can be carried out as follows:"
]
},
{
"cell_type": "code",
"execution_count": 5,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"buildings(Lulu='Sandra', Tanzanite='Rita', Masetha='Remi', Dhahabu='Peter')\n"
]
}
],
"source": [
"names2 = buildings._make(['Sandra', 'Rita', 'Remi', 'Peter'])\n",
"print(names2)"
]
},
{
"cell_type": "code",
"execution_count": 6,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Sandra\n"
]
}
],
"source": [
"print(names2.Lulu)"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"source": []
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 3",
"language": "python",
"name": "python3"
},
"language_info": {
"codemirror_mode": {
"name": "ipython",
"version": 3
},
"file_extension": ".py",
"mimetype": "text/x-python",
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.7.3"
}
},
"nbformat": 4,
"nbformat_minor": 2
}
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