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sarincrsarincr
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Dict
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Diff for: ‎08.Dictionary .ipynb

+204-13
Original file line numberDiff line numberDiff line change
@@ -513,31 +513,222 @@
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},
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{
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"cell_type": "code",
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"execution_count": 31,
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"execution_count": 32,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"Salary: None\n"
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"{'a': 'vowel', 'u': 'vowel', 'i': 'vowel', 'o': 'vowel', 'e': 'vowel'}\n"
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]
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},
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}
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],
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"source": [
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"keys = {'a', 'e', 'i', 'o', 'u' }\n",
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"value = 'vowel'\n",
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"\n",
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"vowels = dict.fromkeys(keys, value)\n",
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"print(vowels)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 33,
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"metadata": {},
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"outputs": [
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{
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"ename": "KeyError",
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"evalue": "'salary'",
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"output_type": "error",
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"traceback": [
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"\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
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"\u001b[0;31mKeyError\u001b[0m Traceback (most recent call last)",
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"\u001b[0;32m<ipython-input-31-b00495ba314f>\u001b[0m in \u001b[0;36m<module>\u001b[0;34m\u001b[0m\n\u001b[1;32m 1\u001b[0m \u001b[0mprint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m'Salary: '\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mperson\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mget\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m'salary'\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m----> 2\u001b[0;31m \u001b[0mprint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mperson\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0;34m'salary'\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m",
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"\u001b[0;31mKeyError\u001b[0m: 'salary'"
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"{'a': [1], 'u': [1], 'i': [1], 'o': [1], 'e': [1]}\n",
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"{'a': [1, 2], 'u': [1, 2], 'i': [1, 2], 'o': [1, 2], 'e': [1, 2]}\n"
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]
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}
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],
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"source": [
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"print('Salary: ', person.get('salary'))\n",
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"print(person['salary'])"
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"keys = {'a', 'e', 'i', 'o', 'u' }\n",
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"value = [1]\n",
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"\n",
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"vowels = dict.fromkeys(keys, value)\n",
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"print(vowels)\n",
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"\n",
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"value.append(2)\n",
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"print(vowels)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 34,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"{'a': [1], 'u': [1], 'i': [1], 'o': [1], 'e': [1]}\n",
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"{'a': [1], 'u': [1], 'i': [1], 'o': [1], 'e': [1]}\n"
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]
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}
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],
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"source": [
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"keys = {'a', 'e', 'i', 'o', 'u' }\n",
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"value = [1]\n",
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"\n",
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"vowels = { key : list(value) for key in keys }\n",
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"\n",
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"print(vowels)\n",
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"\n",
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"\n",
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"value.append(2)\n",
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"print(vowels)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 35,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"{0: 0, 1: 1, 2: 4, 3: 9, 4: 16, 5: 25}\n"
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]
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}
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],
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"source": [
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"squares = {x: x*x for x in range(6)}\n",
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"\n",
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"print(squares)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 36,
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"metadata": {},
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"outputs": [],
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"source": [
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"squares = {}\n",
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"for x in range(6):\n",
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" squares[x] = x*x"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 37,
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"metadata": {},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"{0: 0, 1: 1, 2: 4, 3: 9, 4: 16, 5: 25}"
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]
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},
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"execution_count": 37,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"squares"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 38,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"{1: 1, 3: 9, 5: 25, 7: 49, 9: 81}\n"
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]
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}
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],
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"source": [
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"odd_squares = {x: x*x for x in range(11) if x%2 == 1}\n",
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"\n",
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"print(odd_squares)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 39,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"True\n"
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]
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}
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],
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"source": [
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"squares = {1: 1, 3: 9, 5: 25, 7: 49, 9: 81}\n",
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"\n",
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"print(1 in squares)\n"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 41,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"True\n"
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]
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}
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],
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"source": [
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"\n",
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"print(2 not in squares)\n"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 42,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"False\n"
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]
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}
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],
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"source": [
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"\n",
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"print(49 in squares)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 43,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"1\n",
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"9\n",
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"25\n",
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"49\n",
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"81\n"
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]
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}
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],
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"source": [
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"squares = {1: 1, 3: 9, 5: 25, 7: 49, 9: 81}\n",
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"for i in squares:\n",
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" print(squares[i])"
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]
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},
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{

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