Amazing-Python-Scripts

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# import modules like 'os' and 'time'
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import os
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import time
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os.system('clear')
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# using ctime() to show present time
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times = time.ctime()
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print("\nCurrent Time: ", times)
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print(
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    "\n     Welcome to CountdownTimer!\n\n     Let's set up the countdown timer...\n"
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)
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# User input for the timer
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hours = int(input("     How many hours? "))
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minutes = int(input("     How many minutes? "))
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seconds = int(input("     How many seconds? "))
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# To display message when the given value is not a number
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if hours or minutes or seconds == "":
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    print("\n Invalid entry. You must enter a number.")
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# Conversion of hours amd minutes into seconds
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hrsToSec = (hours * 60) * 60
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mnsToSec = (minutes * 60)
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seconds = seconds
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seconds = hrsToSec + mnsToSec + seconds
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print("\n Timer has been set for " + str(seconds) + " seconds.")
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# Loop for displaying the timer
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for i in range(seconds, -1, -1):
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    displayHours = int(seconds / 3600)
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    displayMinutes = int(seconds / 60)
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    if displayMinutes >= 60:
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        displayMinutes = displayMinutes - (displayHours * 60)
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    else:
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        displayMinutes = displayMinutes
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    displaySeconds = int(seconds % 60)
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    print("\n     Your time remaining is: {}:{}:{}".format(
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        str(displayHours).zfill(2),
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        str(displayMinutes).zfill(2),
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        str(displaySeconds).zfill(2)))
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    seconds -= 1
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    time.sleep(1)  # delays in the excution of a program for 1 second
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print("\n Time is over.")
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