title: import GeneticAlgorithm ModuleNotFoundError: No module named 'libs.GeneticAlgorithm'
body: <p>I have been trying to run a code a found and I get this kind of error . I don't know how to deal with this because I am new to python and trying to understand the concept of TSP problem.
  Any help would be appreciated
  Code below</p>
  
  <pre><code>from libs.GeneticAlgorithm import GeneticAlgorithm
  
  def main():
      poland = Country()
      poland.add([
          City('Gorlice', (49.655299, 21.159769)),
          City('Sosnowiec', (50.286263, 19.104078)),
          City('Łódź', (51.760229, 19.457209)),
          City('Wrocław', (51.108314, 17.037802)),
          City('Poznań', (52.406376, 16.925167)),
          City('Toruń', (53.013790, 18.598444)),
          City('Zielona Góra', (51.935619, 15.506186)),
          City('Szczecin', (53.428543, 14.552812)),
          City('Rzeszów', (50.041187, 21.999121)),
          City('Kraków', (50.049683, 19.944544)),
          City('Olsztyn', (53.770226, 20.490189)),
          City('Lublin', (51.245376, 22.568278))
      ])
      print('Cities:', end=' ')
      print(*(city for city in poland.cities), sep=', ')
      ga = GeneticAlgorithm(100, mutation_rate=0.5, ptype=Route, args=(poland.cities,))
      ga.run(seconds=10)
      fittest = ga.alltime_best
      best_fitness = fittest.fitness
      print('Best route:', fittest)
      print('Best fitness:', best_fitness)
      print('Generations:', ga.generation)
  
  
  if __name__ == '__main__':
      main()
  </code></pre>