import csv

class Table:
  columnNames = []
  rows = []
  def __init__(self, columns):
    self.columnNames = columns

  def addRow(self, values):
    self.rows.append(values)

  def getLastRow(self):
    if len(self.rows) > 0:
      return self.rows[len(self.rows)-1]
    else:
      return [0] * len(self.columnNames)

  def getLastValue(self, column):
    col = self.columnNames.index(column)
    return self.getLastRow(col)

  def saveAsCsv(self, filename):
    with open(filename,"w+", newline='') as my_csv:
      csvWriter = csv.writer(my_csv,delimiter=',')
      csvWriter.writerow(self.columnNames)
      csvWriter.writerows(self.rows)

if __name__ == "__main__":
  t = Table(["time", "col1", "col2"])
  t.addRow([time.time(), 1, 2])
  t.addRow([time.time(), 3, 4])
  print(len(t.rows))
  print(t.getLastRow())