IndexError：ネストされたforループを使用して範囲外のインデックスを一覧表示する

Question

非常に簡単な処理を行うためにCoCalc（Sageはいくつかのエクストラが追加されたSage）でプログラミングしています。私は頻繁にプログラマーではないことを認めなければならないので、おそらく私はかなり明白でなければならない何かを見逃しています。

文脈に質問を入れる。 max_faces_listはセットのリストです。私は他の要素のサブセットである要素をリストから削除したい。

コードは次のとおりです。

for i in range(0,len(max_faces_list)-2): 
i 
for j in range(i+1,len(max_faces_list)): 
    j 
    if max_faces_list[i].issubset(max_faces_list[j]): 
     print('bu') 
     F.remove(F[i]) 
     break    

出力は次のようになります場合は

0 
1 
2 
3 
4 
bu 
1 
2 
3 
4 
bu 
2 
3 
4 
5 
bu 
3 
4 
5 
6 
bu 
4 
5 
6 
7 
8 
9 
10 
bu 
5 
6 
7 
8 
9 
10 
bu 
6 
7 
8 
9 
10 
11 
bu 
7 
8 
9 
10 
bu 
Error in lines 1-8 
Traceback (most recent call last): 
    File "/cocalc/lib/python2.7/site-packages/smc_sagews/sage_server.py", line 1013, in execute 
    exec compile(block+'\n', '', 'single') in namespace, locals 
    File "", line 7, in <module> 
IndexError: list index out of range 

それは便利です：

max_faces_list=[set([(0, 2, 3)]), set([(0, 1, 2)]), set([(1, 2, 3)]), set([(0, 1, 3)]), set([(0, 2, 3), (0, 1, 2)]), set([(0, 2, 3), (1, 2, 3)]), set([(0, 2, 3), (0, 1, 3)]), set([(0, 1, 2), (1, 2, 3)]), set([(0, 1, 2), (0, 1, 3)]), set([(1, 2, 3), (0, 1, 3)]), set([(0, 2, 3), (0, 1, 2), (1, 2, 3)]), set([(0, 2, 3), (0, 1, 2), (0, 1, 3)]), set([(0, 2, 3), (1, 2, 3), (0, 1, 3)]), set([(0, 1, 2), (1, 2, 3), (0, 1, 3)])] 

F=[Simplicial complex with vertex set (0, 2, 3) and facets {(0, 2, 3)}, Simplicial complex with vertex set (0, 1, 2) and facets {(0, 1, 2)}, Simplicial complex with vertex set (1, 2, 3) and facets {(1, 2, 3)}, Simplicial complex with vertex set (0, 1, 3) and facets {(0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (0, 1, 2)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (1, 2, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 1, 2), (1, 2, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 1, 2), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(1, 2, 3), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (0, 1, 2), (1, 2, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (0, 1, 2), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (1, 2, 3), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 1, 2), (1, 2, 3), (0, 1, 3)}] 

私はいくつかのコード（I、Jおよび印刷を導入しています何が起こっているのかを検出して理解しようとするために、（ 'bu'）を使用します。

編集：コード付き

：

for i in range(0,len(max_faces_list)-2): 
    i 
    for j in range(i+1,len(max_faces_list)): 
     j 
     if max_faces_list[i].issubset(max_faces_list[j]): 
      print('bu') 
      print(i, F) 
      F.remove(F[i]) 
      break    

出力は次のようになります。

0 
1 
2 
3 
4 
bu 
(0, [Simplicial complex with vertex set (0, 2, 3) and facets {(0, 2, 3)}, Simplicial complex with vertex set (0, 1, 2) and facets {(0, 1, 2)}, Simplicial complex with vertex set (1, 2, 3) and facets {(1, 2, 3)}, Simplicial complex with vertex set (0, 1, 3) and facets {(0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (0, 1, 2)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (1, 2, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 1, 2), (1, 2, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 1, 2), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(1, 2, 3), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (0, 1, 2), (1, 2, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (0, 1, 2), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (1, 2, 3), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 1, 2), (1, 2, 3), (0, 1, 3)}]) 
1 
2 
3 
4 
bu 
(1, [Simplicial complex with vertex set (0, 1, 2) and facets {(0, 1, 2)}, Simplicial complex with vertex set (1, 2, 3) and facets {(1, 2, 3)}, Simplicial complex with vertex set (0, 1, 3) and facets {(0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (0, 1, 2)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (1, 2, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 1, 2), (1, 2, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 1, 2), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(1, 2, 3), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (0, 1, 2), (1, 2, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (0, 1, 2), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (1, 2, 3), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 1, 2), (1, 2, 3), (0, 1, 3)}]) 
2 
3 
4 
5 
bu 
(2, [Simplicial complex with vertex set (0, 1, 2) and facets {(0, 1, 2)}, Simplicial complex with vertex set (0, 1, 3) and facets {(0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (0, 1, 2)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (1, 2, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 1, 2), (1, 2, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 1, 2), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(1, 2, 3), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (0, 1, 2), (1, 2, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (0, 1, 2), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (1, 2, 3), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 1, 2), (1, 2, 3), (0, 1, 3)}]) 
3 
4 
5 
6 
bu 
(3, [Simplicial complex with vertex set (0, 1, 2) and facets {(0, 1, 2)}, Simplicial complex with vertex set (0, 1, 3) and facets {(0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (1, 2, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 1, 2), (1, 2, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 1, 2), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(1, 2, 3), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (0, 1, 2), (1, 2, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (0, 1, 2), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (1, 2, 3), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 1, 2), (1, 2, 3), (0, 1, 3)}]) 
4 
5 
6 
7 
8 
9 
10 
bu 
(4, [Simplicial complex with vertex set (0, 1, 2) and facets {(0, 1, 2)}, Simplicial complex with vertex set (0, 1, 3) and facets {(0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (1, 2, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 1, 2), (1, 2, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 1, 2), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(1, 2, 3), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (0, 1, 2), (1, 2, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (0, 1, 2), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (1, 2, 3), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 1, 2), (1, 2, 3), (0, 1, 3)}]) 
5 
6 
7 
8 
9 
10 
bu 
(5, [Simplicial complex with vertex set (0, 1, 2) and facets {(0, 1, 2)}, Simplicial complex with vertex set (0, 1, 3) and facets {(0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (1, 2, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 1, 2), (1, 2, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(1, 2, 3), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (0, 1, 2), (1, 2, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (0, 1, 2), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (1, 2, 3), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 1, 2), (1, 2, 3), (0, 1, 3)}]) 
6 
7 
8 
9 
10 
11 
bu 
(6, [Simplicial complex with vertex set (0, 1, 2) and facets {(0, 1, 2)}, Simplicial complex with vertex set (0, 1, 3) and facets {(0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (1, 2, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 1, 2), (1, 2, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(1, 2, 3), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (0, 1, 2), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (1, 2, 3), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 1, 2), (1, 2, 3), (0, 1, 3)}]) 
7 
8 
9 
10 
bu 
(7, [Simplicial complex with vertex set (0, 1, 2) and facets {(0, 1, 2)}, Simplicial complex with vertex set (0, 1, 3) and facets {(0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (1, 2, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 1, 2), (1, 2, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(1, 2, 3), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 2, 3), (0, 1, 2), (0, 1, 3)}, Simplicial complex with vertex set (0, 1, 2, 3) and facets {(0, 1, 2), (1, 2, 3), (0, 1, 3)}]) 
Error in lines 2-10 
Traceback (most recent call last): 
    File "/cocalc/lib/python2.7/site-packages/smc_sagews/sage_server.py", line 1013, in execute 
    exec compile(block+'\n', '', 'single') in namespace, locals 
    File "", line 8, in <module> 
IndexError: list index out of range 

のでエラーは、私はもはやF [i]を削除することができないことです。これを見つけてくれてありがとう@Akash Wankhede！私は自分の間違いを理解していると思います！

Answer 1

「print（ 'bu'）」のすぐ下に「print（i、F）」というステートメントを追加してください。