Morse Code Data Python Programming Question

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ChcclOnex

Programming

Description

Write a UDT (class) to contain MorseCode data, as stored in the MorseCode.csv file.  Read each line from the MorseCode.csv file and convert it to a MorseCode object.  After constructing the MorseCode object, insert it into a Python List holding MorseCode objects.  The MorseCode list should also be a data member of a UDT class.

Define the necessary operators to support Sorting and Comparing MorseCode objects.  First sort the MorseCode list by Letter or Number.  Then convert this sentence to MorseCode by looking up each character in the list and printing the MorseCode:

"THE QUICK BROWN POODLE JUMPED OVER THE LAZY FOX 123 TIMES"


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class Element : def __init__(self,nu,ab,na) : # constructor self.number = int(nu) self.abbrev = ab self.name = na def __str__(self): # string conversion operator return str(self.name + '\t' + self.abbrev + '\t' + str(self.number)) def __lt__(self,right): # less-than operator return self.number < right.number def __eq__(self,right): return self.number == right.number class PeriodicList : def __init__(self, size): #constructor self.length = size self.table = [ ] def Reader(self,csvfile): csv = open(csvfile) for line in csv : rline = line.rstrip() cline = rline.split(',') self.table.append(Element(int(cline[0]),cline[1],cline[2])) def Output(self) : for i in range(0,len(self.table)): print(self.table[i]) def Sort(self): self.table.sort() def main(): pt = PeriodicList(120) pt.Reader('PeriodicTable.csv') pt.Output() # sorted by name pt.Sort() pt.Output() # sorted by number efind = Element(80,"Hg","Mercury") if efind in pt.table: print("Found " + str(efind)) print("index = ", pt.table.index(efind)) if __name__=="__main__": main() class Water: def __init__(self,s): self.hydrogen = 2 self.oxygen = 1 self.hightemperature = 0 self.lowtemperature = 0 self.state = s def __str__(self): # reused by derived classes return self.state class Solid(Water): def __init__(self): super().__init__("Solid") Water.hightemperature = 0 Water.lowtemperature = -400 # no __str__ class Liquid(Water): def __init__(self): super().__init__("Liquid") Water.hightemperature = 99 Water.lowtemperature = 1 # no __str__ class Gas(Water): def __init__(self): super().__init__("Gas") Water.hightemperature = 1000 Water.lowtemperature = 100 # no __str__ water = Water("Water") print(water) water = Solid() print(water) water = Liquid() print(water) water = Gas() print(water)
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Anonymous
Excellent resource! Really helped me get the gist of things.

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