{"id":12227,"date":"2022-09-30T02:53:27","date_gmt":"2022-09-29T21:23:27","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-please-help-i-have-to-read-numbers-from-a-text-file-i-create-and-find-the-average-of-these-numbers-and-print-it-closed\/"},"modified":"2022-09-30T02:53:27","modified_gmt":"2022-09-29T21:23:27","slug":"solved-please-help-i-have-to-read-numbers-from-a-text-file-i-create-and-find-the-average-of-these-numbers-and-print-it-closed","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-please-help-i-have-to-read-numbers-from-a-text-file-i-create-and-find-the-average-of-these-numbers-and-print-it-closed\/","title":{"rendered":"[Solved] Please Help! I have to read numbers from a text file i create and find the average of these numbers and print it [closed]"},"content":{"rendered":"

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I think the smallest set of changes that will make this work is:<\/p>\n

class TemperatureFile:\n    def __init__(self, filename):\n        self.__filename = filename\n\n    def getFilename(self):\n        return self._Filename\n\n    def setFilename(self):\n        self._filename = filename\n\n    def calculateAverage(self):\n        try:\n          with open(self.__filename,'rb') as temperatureFile:\n            total = 0\n            temp = 0\n            for line in temperatureFile:\n                amount = float(line.rstrip(\"\\n\"))\n                total += amount\n                temp = temp + 1\n            average = total\/temp\n            print(average)\n        except ValueError as err:\n            print(err)\n        except IOError as err:\n            print(err)\n        else:\n            average = total\/temp\n            print(average)\n        finally:\n            temperatureFile.close() \n\n\ndef main():\n    num1 = 35\n    num2 = 63\n    num3 = 40\n    total = 0.0\n    temp = 0.0\n    average = 0.0\n    temperatureFile = open('Temperatures.txt', 'w')\n    temperatureFile.write(str(num1) + '\\n')\n    temperatureFile.write(str(num2) + '\\n')\n    temperatureFile.write(str(num3) + '\\n')\n    temperatureFile.close()\n    Temperatures = TemperatureFile('Temperatures.txt')\n    Temperatures.calculateAverage()\n\n\n\nmain()\n<\/code><\/pre>\n
calculateAverage<\/code> is a member of the TemperatureFile<\/code> class, so it needs to be called on an instance of this class (Temperatures<\/code>, here). calculateAverage<\/code> takes no arguments. The self<\/code> argument is just an explicit version of the implicit this<\/code> common in other languages. I moved the opening of the file into the calculateAverage<\/code> function since otherwise the __filename<\/code> attribute is pointless. I also had to add total<\/code> and temp<\/code> default definitions.<\/p>\n
A more reasonable version [I think], though not strictly conforming to the requirements:<\/p>\n
import traceback as tb\n\nclass TemperatureFile:\n  def __init__(self, filename):\n    self.filename = filename\n\n  def calculateAverage(self):\n    try:\n      with open(self.filename,'rb') as temperatureFile:\n        total = 0\n        temp = 0\n        for line in temperatureFile:\n          total += float(line.rstrip(\"\\n\"))\n          temp += 1\n        print(total\/temp)\n    except:\n      tb.print_exc()\n\nwith open('Temperatures.txt','wb') as output:\n  output.write(str(35) + '\\n')\n  output.write(str(63) + '\\n')\n  output.write(str(40) + '\\n')\n\nTemperatureFile('Temperatures.txt').calculateAverage()\n<\/code><\/pre>\n
In Python, everything in the root of the file is evaluate\/executed by default, so defining a main<\/code> function seems a bit uncharacteristic. I also don’t think getters and setters are as common, though not unheard of, since Python is so dynamic anyway. A couple key takeaways: I would recommend using the traceback.print_exc()<\/code> function to provide more detailed error messages, and be sure to use with<\/code> when opening files to properly handle resource cleanup. Otherwise, I just got rid of some redundant variables that made things somewhat noisy.<\/p>\n<\/p><\/div>\n
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            4<\/span> <\/p><\/div>\n<\/div>\n
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solved Please Help! I have to read numbers from a text file i create and find the average of these numbers and print it [closed] <\/p>\n","protected":false},"excerpt":{"rendered":"
[ad_1] I think the smallest set of changes that will make this work is: class TemperatureFile: def __init__(self, filename): self.__filename = filename def getFilename(self): return self._Filename def setFilename(self): self._filename = filename def calculateAverage(self): try: with open(self.__filename,’rb’) as temperatureFile: total = 0 temp = 0 for line in temperatureFile: amount = float(line.rstrip(“\\n”)) total += amount temp … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[349],"class_list":["post-12227","post","type-post","status-publish","format-standard","hentry","category-solved","tag-python"],"yoast_head":"\n[Solved] Please Help! I have to read numbers from a text file i create and find the average of these numbers and print it [closed] - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-please-help-i-have-to-read-numbers-from-a-text-file-i-create-and-find-the-average-of-these-numbers-and-print-it-closed\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] Please Help! 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I have to read numbers from a text file i create and find the average of these numbers and print it [closed] - JassWeb","og_description":"[ad_1] I think the smallest set of changes that will make this work is: class TemperatureFile: def __init__(self, filename): self.__filename = filename def getFilename(self): return self._Filename def setFilename(self): self._filename = filename def calculateAverage(self): try: with open(self.__filename,'rb') as temperatureFile: total = 0 temp = 0 for line in temperatureFile: amount = float(line.rstrip(\"n\")) total += amount temp ... 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