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datetime and tips and tricks
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‎.ipynb_checkpoints/TipsAndTricks-checkpoint.ipynb

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{
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"cells": [
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"# Tips & Tricks"
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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": 3,
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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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]
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}
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],
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"source": [
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"condition=True\n",
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"if condition:\n",
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" x=1\n",
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"else:\n",
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" x=0\n",
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"print(x)\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": 4,
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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\n"
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]
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}
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],
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"source": [
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"condition=False\n",
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"x=1 if condition else 0\n",
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"print(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": 5,
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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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"10100000000\n"
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]
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}
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],
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"source": [
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"num1=10000000000\n",
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"num2=100000000\n",
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"print(num1+num2)"
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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": 8,
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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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"10100000000\n",
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"10,100,000,000\n"
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]
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}
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],
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"source": [
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"num1=10_000_000_000\n",
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"num2=100_000_000\n",
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"print(num1+num2)\n",
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"print(f'{num1+num2:,}')"
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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": 9,
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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 alex\n",
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"1 john\n",
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"2 jane\n",
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"3 richard\n",
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"4 ross\n",
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"5 micahael\n"
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]
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}
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],
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"source": [
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"names=['alex','john','jane','richard','ross','micahael']\n",
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"index=0\n",
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"for name in names:\n",
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" print(index,name)\n",
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" index+=1"
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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": 10,
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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 alex\n",
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"1 john\n",
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"2 jane\n",
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"3 richard\n",
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"4 ross\n",
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"5 micahael\n"
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]
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}
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],
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"source": [
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"names=['alex','john','jane','richard','ross','micahael']\n",
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"for index,name in enumerate(names):\n",
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" print(index,name)\n",
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" "
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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": 11,
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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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"Stark is Iron-Man\n",
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"Bucky is Winter Soldier\n",
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"Banner is Hulk\n",
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"natasha is Black Widow\n",
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"Peter Parker is Spider Man\n"
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]
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}
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],
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"source": [
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"names=['Stark','Bucky','Banner','natasha','Peter Parker']\n",
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"heroes=['Iron-Man','Winter Soldier','Hulk','Black Widow','Spider Man']\n",
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"for name,hero in zip(names,heroes):\n",
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" print(name,'is',hero)"
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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": 12,
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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 2\n",
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"1\n"
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]
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}
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],
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"source": [
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"a,b=1,2\n",
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"print(a,b)\n",
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"# if varaible b value is not used anywhere we can skip it by replacing b by underscore(_)\n",
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"a,_=1,2\n",
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"print(a)"
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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": 14,
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"metadata": {},
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"outputs": [
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{
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"ename": "ValueError",
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"evalue": "too many values to unpack (expected 3)",
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"output_type": "error",
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"traceback": [
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"\u001b[1;31m---------------------------------------------------------------------------\u001b[0m",
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"\u001b[1;31mValueError\u001b[0m Traceback (most recent call last)",
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"\u001b[1;32m<ipython-input-14-d68b62ee792e>\u001b[0m in \u001b[0;36m<module>\u001b[1;34m\u001b[0m\n\u001b[1;32m----> 1\u001b[1;33m \u001b[0ma\u001b[0m\u001b[1;33m,\u001b[0m\u001b[0mb\u001b[0m\u001b[1;33m,\u001b[0m\u001b[0mc\u001b[0m\u001b[1;33m=\u001b[0m\u001b[1;36m1\u001b[0m\u001b[1;33m,\u001b[0m\u001b[1;36m2\u001b[0m\u001b[1;33m,\u001b[0m\u001b[1;36m3\u001b[0m\u001b[1;33m,\u001b[0m\u001b[1;36m4\u001b[0m\u001b[1;33m,\u001b[0m\u001b[1;36m5\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0m\u001b[0;32m 2\u001b[0m \u001b[0mprint\u001b[0m\u001b[1;33m(\u001b[0m\u001b[0ma\u001b[0m\u001b[1;33m,\u001b[0m\u001b[0mb\u001b[0m\u001b[1;33m,\u001b[0m\u001b[0mc\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n",
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"\u001b[1;31mValueError\u001b[0m: too many values to unpack (expected 3)"
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]
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}
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],
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"source": [
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"a,b,c=1,2,3,4,5\n",
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"print(a,b,c)"
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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": 15,
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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 2 [3, 4, 5]\n"
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]
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}
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],
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"source": [
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"a,b,*c=1,2,3,4,5\n",
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"print(a,b,c)"
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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": 16,
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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 2\n"
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]
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}
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],
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"source": [
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"a,b,*_=1,2,3,4,5\n",
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"print(a,b)"
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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": 18,
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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 2 [3, 4, 5, 6, 7, 8, 9] 10\n"
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]
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}
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],
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"source": [
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"a,b,*c,d=1,2,3,4,5,6,7,8,9,10\n",
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"print(a,b,c,d)"
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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": 19,
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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 2 10\n"
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]
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}
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],
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"source": [
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"a,b,*_,d=1,2,3,4,5,6,7,8,9,10\n",
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"print(a,b,d)"
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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": 22,
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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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"Praful 10000 BFSI\n",
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"Praful 10000 BFSI "
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]
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}
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],
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"source": [
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"class employee:\n",
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" pass\n",
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"emp=employee()\n",
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"dict_attr={'name':'Praful','salary':10000,'dept':'BFSI'}\n",
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"for key,value in dict_attr.items():\n",
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" setattr(employee,key,value)\n",
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"\n",
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"# access by attribute name\n",
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"print(emp.name,emp.salary,emp.dept) \n",
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"\n",
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"for key in dict_attr.keys():\n",
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" print(getattr(employee,key),end=' ')"
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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": 23,
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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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"username:user\n",
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"password:password\n",
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"Logging in...\n",
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"Hello user\n"
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]
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}
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],
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"source": [
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"username=input('username:')\n",
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"password=input('password:')\n",
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"print('Logging in...')\n",
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"print('Hello ',username)"
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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": 27,
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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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"username:user1\n",
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"password:········\n",
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"Logging in...\n",
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"Hello user1\n"
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]
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}
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],
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"source": [
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"from getpass import getpass\n",
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"username=input('username:')\n",
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"password=getpass('password:')\n",
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"print('Logging in...')\n",
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"print('Hello ',username)"
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]
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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"version": 3
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},
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"file_extension": ".py",
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"mimetype": "text/x-python",
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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"version": "3.7.1"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 4
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}

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