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CountDown.ipynb
{
"cells": [
{
"metadata": {},
"cell_type": "markdown",
"source": "## Python Script that will calculate the time until an arbitrary date"
},
{
"metadata": {},
"cell_type": "markdown",
"source": "### This version just outputs once:"
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "from datetime import datetime\nimport pytz\nfrom math import floor\n\nend_date = datetime(2014,12,18,19,30,0,0,pytz.UTC) # explicitly make time zone UTC\n\ntime_till_end_date = end_date - datetime.now(pytz.UTC) # explicitly make time zone UTC\n\ntotal_seconds = time_till_end_date.total_seconds()\ndays_left_remainder = total_seconds/(60*60*24) - floor(total_seconds/(60*60*24))\nhours_left = days_left_remainder * 24\nhours_left_remainder = days_left_remainder * 24 - floor(hours_left)\nminutes_left = hours_left_remainder * 60\nminutes_left_remainder = minutes_left - floor(minutes_left)\nseconds_left = minutes_left_remainder * 60\n\nprint('Days:', time_till_end_date.days, '|', 'Hours:', int(hours_left), '|', 'Minutes:', int(minutes_left), '|',\n 'Seconds:', int(seconds_left))",
"execution_count": null,
"outputs": []
},
{
"metadata": {},
"cell_type": "markdown",
"source": "### This version will continuously update the countdown:"
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "from datetime import datetime\nimport pytz\nfrom math import floor\n\nend_date = datetime(2017,9,27,19,30,0,0,pytz.UTC) # explicitly make time zone UTC\n\nwhile True:\n time_till_end_date = end_date - datetime.now(pytz.UTC) # explicitly make time zone UTC\n\n total_seconds = time_till_end_date.total_seconds()\n days_left_remainder = total_seconds/(60*60*24) - floor(total_seconds/(60*60*24))\n hours_left = days_left_remainder * 24\n hours_left_remainder = days_left_remainder * 24 - floor(hours_left)\n minutes_left = hours_left_remainder * 60\n minutes_left_remainder = minutes_left - floor(minutes_left)\n seconds_left = minutes_left_remainder * 60\n\n # print on the same line\n print('\\r'+'Days: ' + str(time_till_end_date.days) + ' | ' + 'Hours: ' + str(int(hours_left)) + ' | ' + 'Minutes: ' + \\\n str(int(minutes_left)) + ' | ' + 'Seconds: ' + \"{0:d}\".format(int(seconds_left)),end='')",
"execution_count": null,
"outputs": []
},
{
"metadata": {},
"cell_type": "markdown",
"source": "#### Thanks to Jim at the DOJO who suggested that I take advantage of the divmod() built-in function, the code is now so much more simpler:"
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "from datetime import datetime\nimport pytz\nimport time\n\n# Time until July 2019 shutdown\nend_date = datetime(2019,6,28,20,0,0,0,pytz.UTC) # explicitly make time zone UTC. EST is 5 hours behind UTC\n\nwhile True:\n time_till_end_date = end_date - datetime.now(pytz.UTC) # explicitly make time zone UTC\n total_seconds = time_till_end_date.total_seconds()\n \n minutes, seconds = divmod(total_seconds, 60)\n hours, minutes = divmod(minutes, 60)\n days, hours = divmod(hours, 24)\n\n print('\\r' + str(int(days)) + ' day(s)' + ' | ' + str(int(hours)) + ' hour(s)' + ' | ' + str(int(minutes)) + \\\n ' minute(s)' + ' | ' + str(int(seconds)) + ' second(s)',end='')\n \n time.sleep(1)",
"execution_count": 3,
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": "16 day(s) | 3 hour(s) | 48 minute(s) | 55 second(s)"
},
{
"ename": "KeyboardInterrupt",
"evalue": "",
"output_type": "error",
"traceback": [
"\u001b[1;31m---------------------------------------------------------------------------\u001b[0m",
"\u001b[1;31mKeyboardInterrupt\u001b[0m Traceback (most recent call last)",
"\u001b[1;32m<ipython-input-3-2924c2b3ed7c>\u001b[0m in \u001b[0;36m<module>\u001b[1;34m\u001b[0m\n\u001b[0;32m 17\u001b[0m ' minute(s)' + ' | ' + str(int(seconds)) + ' second(s)',end='')\n\u001b[0;32m 18\u001b[0m \u001b[1;33m\u001b[0m\u001b[0m\n\u001b[1;32m---> 19\u001b[1;33m \u001b[0mtime\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0msleep\u001b[0m\u001b[1;33m(\u001b[0m\u001b[1;36m1\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0m",
"\u001b[1;31mKeyboardInterrupt\u001b[0m: "
]
}
]
},
{
"metadata": {},
"cell_type": "markdown",
"source": "### Another silly example of printing on the same line"
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "import time\n\nmessage = 'ALL YOUR BASE ARE BELONG TO US!'\n\nfor i in range(1, len(message)+1):\n time.sleep(0.3)\n print('\\r'+message[:i],end='')",
"execution_count": 2,
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": "ALL YOUR BASE ARE BELONG TO US!"
}
]
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "import time\nimport subprocess\nimport platform\n\nmessage = 'ALL YOUR BASE ARE BELONG TO US!'\n\nwhile True:\n for i in range(1, len(message)+1):\n time.sleep(0.3)\n print('\\r'+message[:i],end='')\n time.sleep(0.2)\n subprocess.Popen( \"cls\" if platform.system() == \"Windows\" else \"clear\", shell=True)",
"execution_count": null,
"outputs": []
}
],
"metadata": {
"gist": {
"id": "",
"data": {
"description": "CountDown.ipynb",
"public": true
}
},
"hide_input": false,
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"display_name": "Python 3",
"language": "python"
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"version": "3.6.5",
"mimetype": "text/x-python",
"codemirror_mode": {
"name": "ipython",
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"pygments_lexer": "ipython3",
"nbconvert_exporter": "python",
"file_extension": ".py"
},
"latex_envs": {
"bibliofile": "biblio.bib",
"cite_by": "apalike",
"current_citInitial": 1,
"eqLabelWithNumbers": true,
"eqNumInitial": 0
},
"varInspector": {
"window_display": false,
"cols": {
"lenName": 16,
"lenType": 16,
"lenVar": 40
},
"kernels_config": {
"python": {
"library": "var_list.py",
"delete_cmd_prefix": "del ",
"delete_cmd_postfix": "",
"varRefreshCmd": "print(var_dic_list())"
},
"r": {
"library": "var_list.r",
"delete_cmd_prefix": "rm(",
"delete_cmd_postfix": ") ",
"varRefreshCmd": "cat(var_dic_list()) "
}
},
"types_to_exclude": [
"module",
"function",
"builtin_function_or_method",
"instance",
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"nbformat": 4,
"nbformat_minor": 1
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