Python Useful Functions

import time, datetime, os

version = "1.0"

class string(object):

    def getVer(self):

        return version

    def removePhrase(self, string, charArray):

        string = str(string)

        for i in range (0, len(charArray)):
            string = string.replace(charArray[i], "")

        return string

    def removePhraseSpace(self, string, charArray):

        string = str(string)

        for i in range (0, len(charArray)):
            string = string.replace(charArray[i], " " * len(charArray[i]))

        return string

    def cleanPhrase(self, string, charArray):

        string = str(string)

        for i in range (0, len(charArray)):
            string = string.replace(charArray[i], "*" * len(charArray[i]))

        return string

    def censorPhrase(self, string, charArray):

        string = str(string)

        for i in range (0, len(charArray)):
            string = string.replace(charArray[i], "[Censored]")

        return string

class log(object):

    def getVer(self):

        return version

    def fileOpen(self, file):

        self.file = open(file,"a")

    def addLine(self, line):

        self.file.write(str(line) + "\n")

    def addLineDT(self, line):

        time = datetime.datetime.now()
        print(time)
        self.addLine(str(time) + str(line))

    def addLinePrint(self, line):

        self.file.write(str(line) + "\n")
        print(line)

    def fileClose(self):

        self.file.close()

class math(object):

    def getVer(self):

        return version

    def fibonacci(self, n):

        a = 0
        b = 1
        for i in range (1, n):
            c = a + b
            a = b
            b = c

        return a

    def lucas(self, n):

        a = 2
        b = 1
        for i in range (1, n):
            c = a + b
            a = b
            b = c

        return a

    def additiveSet(self, n, a, b):

        for i in range (1, n):
            c = a + b
            a = b
            b = c

        return a

    def phi(self, n):

        a = self.fibonacci(n)
        b = self.fibonacci(n-1)
        c = a / b

        return c

class encrypt(object):

    def getVer(self):

        return version

    def fileOpen(self, file):

        self.file = open(file,"r+b")
        self.size = os.path.getsize(file)
        print(self.size)

    def encryptF(self):

        for i in range(0, self.size):
            print(self.file.read(1))

    def fileClose(self):

        self.file.close()

"""
class misc(object):
"""