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ayu #4

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388 changes: 388 additions & 0 deletions r.ipynb
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Original file line number Diff line number Diff line change
@@ -0,0 +1,388 @@
{
"cells": [
{
"cell_type": "code",
"execution_count": 1,
"id": "d9c9e526",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"<re.Match object; span=(0, 3), match='cat'>\n"
]
}
],
"source": [
"import re\n",
"str = 'cat mat bat rat'\n",
"output=re.match(r\"c\\w\\w\",str)\n",
"\n",
"print(output)"
]
},
{
"cell_type": "code",
"execution_count": 2,
"id": "ef870eb7",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"<re.Match object; span=(12, 15), match='rat'>\n"
]
}
],
"source": [
"import re\n",
"str = 'cat mat bat rat'\n",
"output=re.search(r\"r\\w\\w\",str)\n",
"print(output)"
]
},
{
"cell_type": "code",
"execution_count": 5,
"id": "49f6f805",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"['mat', 'man']\n"
]
}
],
"source": [
"#Write the regular expression and use proper method which gives output as:- ['mat', 'man'] in str.\n",
"import re\n",
"str = 'cat mat bat rat man'\n",
"out=re.findall(\"m\\w\\w\",str)\n",
"print(out)"
]
},
{
"cell_type": "code",
"execution_count": 4,
"id": "1f3284dd",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"['Python', 's', 'Programming', '', 'is', 'very', 'easy', 'to', 'learn']\n"
]
}
],
"source": [
"import re\n",
"str = \"Python's Programming: is very easy to learn\"\n",
"print(re.split(\"\\W\",str))"
]
},
{
"cell_type": "code",
"execution_count": 6,
"id": "2c361dac",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"['Python', 'Programming: is very easy to learn']\n"
]
}
],
"source": [
"# output as:- Python Programming: is very easy to learn in str.\n",
"import re\n",
"str = \"Python's Programming: is very easy to learn\"\n",
"print(re.split(\"'s \",str))"
]
},
{
"cell_type": "code",
"execution_count": 7,
"id": "f11c7359",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"['peter', 'per', 'picked', 'peck', 'pickled', 'peppers']\n"
]
}
],
"source": [
"#Output:- ['peter', 'per', 'picked', 'peck', 'pickled', 'peppers']\n",
"import re\n",
"str = \"peter giper picked a peck of pickled peppers\"\n",
"output=re.findall(r\"p\\w{2,}\\b\",str)\n",
"print(output)"
]
},
{
"cell_type": "code",
"execution_count": 8,
"id": "b289aed9",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"['peter', 'picked', 'peck', 'pickled', 'peppers']\n"
]
}
],
"source": [
"#Retrieve all words starting with p except 'per' which is not a separate word.\n",
"import re\n",
"str = \"peter giper picked a peck of pickled peppers\"\n",
"\n",
"output=re.findall(r\"p\\w{3,}\\b\",str)\n",
"\n",
"print(output)"
]
},
{
"cell_type": "code",
"execution_count": 9,
"id": "cb0ab297",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"['8th', '11th']\n"
]
}
],
"source": [
"#Retrieves all words starting with a digit.\n",
"import re\n",
"str = 'The election in delhi will be held on 8th and result for the same will be declared on 11th'\n",
"output=re.findall(\"\\d{1,2}\\w\\w\",str)\n",
"print(output)\n"
]
},
{
"cell_type": "code",
"execution_count": 10,
"id": "1d97ca0b",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"['peter', 'giper']\n"
]
}
],
"source": [
"#Retrieve all words having 5 characters.\n",
"import re\n",
"str = \"peter giper picked a peck of pickled peppers\"\n",
"output=re.findall(r\"\\b\\w{5}\\b\",str)\n",
"print(output)"
]
},
{
"cell_type": "code",
"execution_count": 11,
"id": "5923bcba",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"['Retrieving', 'words', 'having', 'least', 'characters']\n"
]
}
],
"source": [
"#Retrieve all words having at least 4 characters.\n",
"import re\n",
"str = \"Retrieving all words having at least 4 characters\"\n",
"output=re.findall(r\"\\b\\w{4,}\\b\",str)\n",
"print(output)"
]
},
{
"cell_type": "code",
"execution_count": 12,
"id": "a4b9892e",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"['all', 'words', 'least']\n"
]
}
],
"source": [
"#Retrieve all words having at characters between 3 to 5 words.\n",
"\n",
"import re\n",
"str = \"Retrieving all words having at least 4 characters\"\n",
"output=re.findall(r\"\\b\\w{3,5}\\b\",str)\n",
"print(output)"
]
},
{
"cell_type": "code",
"execution_count": 13,
"id": "41da455c",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"['8', '11']\n"
]
}
],
"source": [
"# Retrieve only digits from the string.\n",
"import re\n",
"str = 'The election in delhi will be held on 8 and result for the same will be declared on 11'\n",
"out=re.findall(r\"\\b\\d{1,2}\\b\",str)\n",
"print(out)"
]
},
{
"cell_type": "code",
"execution_count": 14,
"id": "848fba27",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"<re.Match object; span=(39, 49), match='characters'>\n"
]
}
],
"source": [
"#Retrieve last word if starts with c from the given string.\n",
"import re\n",
"str = \"Retrieving all words having at least 4 characters\"\n",
"st1=r\"c\\w{1,}$\"\n",
"nstr=re.search(st1,str)\n",
"print(nstr)"
]
},
{
"cell_type": "code",
"execution_count": 15,
"id": "46b8e789",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"['1234567890']\n"
]
}
],
"source": [
"#Retrieve a phone number from the given string.\n",
"import re\n",
"str = \"Learnbay : 1234567890\"\n",
"out=re.findall(r\"\\b\\d{10}\\b\",str)\n",
"print(out)"
]
},
{
"cell_type": "code",
"execution_count": 16,
"id": "ea300f1e",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Learnbay : \n"
]
}
],
"source": [
"#Extracs name from the string but not number\n",
"import re\n",
"str = \"Learnbay : 1234567890\"\n",
"st=r\"\\b\\D{1,}\\b\"\n",
"nst=\"\".join(re.findall(st,str))\n",
"print(nst)"
]
},
{
"cell_type": "code",
"execution_count": 17,
"id": "6d30a8c4",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"anil akhil anant ankur\n"
]
}
],
"source": [
"#Retrieve name starting with 'an' or 'ak'.\n",
"import re\n",
"str = 'anil akhil anant abhi arun arati arundhati abhijit ankur'\n",
"st1=r\"\\ba[n,k]\\w{1,}\\b\"\n",
"\n",
"nstr=\" \".join(re.findall(st1,str))\n",
"print(nstr)"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "39b95d37",
"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": "3.8.8"
}
},
"nbformat": 4,
"nbformat_minor": 5
}