Python类编码

Question

def __init__(self, firstName, lastName, city, average):
    """Construct an Applicant object"""
    self.firstName = firstName
    self.lastName = lastName
    self.city = city
    self.average = average





def getFullName(self):
    "returns the full name of the applicant in the format 'lastName, firstname'"

     return self.firstName + "," + self.lastName

def getCity(self):
    "returns the city of the Applicant"

      return self.city

def getAverage(self):
    "returns the Applicant average"

     return self.average

def getScholarshipStatus(self):
    """calculate and return the scholarship status based on the following:
    return None if average < 90
    return General if average >= 90
    """
    if self.average < 90:
        return none
    else:
        return "General"


 def getAcceptanceStatus(self):
    """calculate and return acceptance status based on criteria
    return 'accepted' if average >= 80
    return 'denied' if average < 80"""

  if average >= 80:
    return "accepted"
  else:
    return "denied"

def __str__(self):
    """returns the string interface"""

    return "{0}, {1}, {2}, {3}".format(self.firstName,self.lastName,self.city,self.average)

这是我的Applicant python，需要用于我的Main_Applicant模块 这是我的main_applicant模块

from applicant import *

def printAcceptanceList(applicantList):
"""Output a list applicants that were accepted"""


def printScholarshipList(applicantList):
"""Output a list applicants that qualify for scholarship"""

for applicants in applicantList:
    if applicants.getScholarshipStatus() == "General":
        print applicants





def makeApplicant(infoStr):
    """returns an Applicant object created from the infoStr"""


    appStrList = infoStr.split(",")
    firstname = appStrList[0]
    lastname = appStrList[1]
    city = appStrList[2]

    marksum = 0
    for markstr in appStrList[3:]:
        marksum = marksum + int(markstr)
    average = marksum/6

    # create the applicant object
    newApplicant = Applicant(firstname, lastname, city, average)

    return newApplicant




def getHighestApplicant(applicantList):
    """returns the Applicant with the highest average"""
    highest_average = 0
    for applicants in applicantList:
        highest_average = max()



def buildApplicantList(infoStrList):
    """returns a list of Applicants from a file list"""
    accepted_list = []
    for applicants in applicantList:
        if applicants.getAcceptanceStatus() == "Accepted":
            applicants = makeApplicant(applicants)
            accepted_list = append.applicant




def main():
    #read the text file into a list (each row in the file is an item in the list)
    file = open("applicants.csv","r")
    fileList = file.readlines()

    # assemble the collection of applicants
    applicantsList = buildApplicantList(fileList)


    printAcceptanceList(applicantsList)
    printScholarshipList(applicantsList)

    presScholarApp = getHighestApplicant(applicantsList)
    print("The Winner of the President's Scholarship is " + presScholarApp.getFullName())


main()

在main_Applicant模块中，applicants.csv是我用excel作为申请人的平均值，城市和其他信息在功能中使用的东西 任何人都知道如何使模块工作？

p.s如果我知道学生在哪里申请 - 一份关于每个城市申请学生人数的报告，我该如何编码呢？​​

Answer 1

首先，您的代码需要实际包装在类声明中：

class Applicant:

    def __init__(self, firstName, lastName, city, average):
        """Construct an Applicant object"""
        self.firstName = firstName
        self.lastName = lastName
        self.city = city
        self.average = average





    def getFullName(self):
        "returns the full name of the applicant in the format 'lastName, firstname'"

         return self.firstName + "," + self.lastName

    def getCity(self):
        "returns the city of the Applicant"

          return self.city

    def getAverage(self):
        "returns the Applicant average"

         return self.average

    def getScholarshipStatus(self):
        """calculate and return the scholarship status based on the following:
        return None if average < 90
        return General if average >= 90
        """
        if self.average < 90:
            return none
        else:
            return "General"


     def getAcceptanceStatus(self):
        """calculate and return acceptance status based on criteria
        return 'accepted' if average >= 80
        return 'denied' if average < 80"""

      if average >= 80:
        return "accepted"
      else:
        return "denied"

    def __str__(self):
        """returns the string interface"""

        return "{0}, {1}, {2}, {3}".format(self.firstName,self.lastName,self.city,self.average)

否则selfs和 init 方法没有任何意义。

Python有一个内置的CSV阅读器。查看文档here，它非常易于使用且记录良好

编码你要求的代码你可以通过多种方式进行编码，例如你可以遍历所有学生并将城市列入一个列表，然后查看最常出现的内容。不确定这将如何影响效率，但它很容易理解，并且相当直接的编码。祝你好运