试图追加空单

Question

我想追加到这是应该持有9或15个单词根据难易空grid_list（无关的问题）：

def list_function(): #creates the list that will be used for the grid from file_content_list 
    file_content_list = import_function() 
    grid_list = [[,,],[,,],[,,]] #this is the list used to make the grid 
    counter = 0 #defines counter which allows iteration 
    place = 0 #defines place which is what affects the place in grid_list that the word is added to 
    if counter < len(file_content_list): #counter decides how many times the next part loops 
     for word in file_content_list: 
      grid_list[0][place].append(word) #appends the current word to grid_list at the place of value of place 
      place += 1 #adds 1 to place 
      counter += 1 #adds 1 to counter 
      file_content_list.remove(word) #removes the used word 
      print grid_list 
    elif counter >= 3 and counter < 6: #if counter is equal to 4, 5 or 6 
     for word in file_content_list: 
      grid_list[0][place].append(word) #appends the current word to grid_list at the place of value of place 
      place += 1 
      counter += 1 
      file_content_list.remove(word) 
      print grid_list 
    else: 
     for word in file_content_list: 
      grid_list[0][place].append(word) #appends the current word to grid_list at the place of value of place 
      place += 1 
      counter += 1 
      file_content_list.remove(word) 
      print grid_list 
    return grid_list 

这想出了错误：

AttributeError: 'str' object has no attribute 'append'

Answer 1

当您编写grid_list[0][place]正在访问元素。这个元素是一个字符串，并没有追加的方法。

将grid_list[0][place] = word放在这个位置。