０〜５００までの数字で２と９の倍数である数字をリスト化しそれらの数字をすべて足したい。

Question

このコードは２と９の倍数を０〜５００の数字から抜き取り、それをリスト化して抜き取った数字をすべて足すようにできています（自分の中では笑）。しかし全く動きません。何を試したらいいかもわからず色々調べてみたのですが、これにあったものがなかったため困っています。どこを改善すればよいのでしょうか？

def build_list():
  build_list[s]
  for s in range(0, 501):
    if range % 2 == 0 or range % 9 == 0:
      print(range_attend())

  for s in range(0, len(build_list)): 
    total = total + build_list[s]
    

    print(all)

  return build_list

print('The sum of the list should be 69806.')

またこのコードではエラーも出ずどこを改善すればいいのかがわかりません。

def build_list():
  # create an empty list
  build_list = []
  # test all of the numbers through 500
  # if they are a multiple of either 2 or 9, then add it onto the end of your list
  for i in range(501):
    if i % 2 == 0 or i % 9 == 0:
       print(build_list, end = ' ')
  # compute the sum of all of the numbers in the list
  all = 0
  for x in build_list:
    all = all * x
  # print the sum of all of the numbers in the list
  print(all)
  # return the list (required to pass the tests)
print('The sum of the list should be 69806.')
build_list()

このような形まで持っていけたのですが、どうすればよいのでしょうか？

The sum of the list should be 69806.
[] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] 0
Outputはこんな形になりました。

Appendコードを使うことで数字が出てくるようになりましたが、答えがすごく長くなりました。これってくりかえしくり返しなっているということですよね？これを１回限りにするにはどうすればいいのでしょうか？

コードをこのようにしてみました

def build_list():
  # create an empty list
  build_list = []
  # test all of the numbers through 500
  # if they are a multiple of either 2 or 9, then add it onto the end of your list
  for i in range(501):
    if i % 2 == 0 or i % 9 == 0:
      build_list.append(i)
      print(build_list)
  # compute the sum of all of the numbers in the list
  # print the sum of all of the numbers in the list
  
  # return the list (required to pass the tests)
print('The sum of the list should be 69806.')
build_list()

Outputはこのように５００まで数字が出てくるようになったのですが、それがいっぺんに出てこないです。

[0]
[0, 2]
[0, 2, 4]
[0, 2, 4, 6]
[0, 2, 4, 6, 8]
[0, 2, 4, 6, 8, 9]
[0, 2, 4, 6, 8, 9, 10]
[0, 2, 4, 6, 8, 9, 10, 12]

print(build_list)をfor文のあとに移動してみると

def build_list():
  # create an empty list
  build_list = []
  # test all of the numbers through 500
  # if they are a multiple of either 2 or 9, then add it onto the end of your list
  for i in range(501):
    if i % 2 == 0 or i % 9 == 0:
      build_list.append(i)
　print(build_list)
  # compute the sum of all of the numbers in the list
  print(sum(build_list))
  # print the sum of all of the numbers in the list
  
  # return the list (required to pass the tests)
print('The sum of the list should be 69806.')
build_list()

こうなりました。しかし同時にエラーコードも出てきました

Traceback (most recent call last):
  File "python", line 9
    print(build_list)
        ^
SyntaxError: invalid character in identifier

すいません、皆さんの貴重なお時間を使わせていただいて、先程エラーが出たところを再度入力したらエラーが出てこなくなりました。しかしReturnを最後の文に入れたところOutputすら出なくなりました。何が原因なのでしょうか？？

def build_list():
  # create an empty list
  build_list = []
  # test all of the numbers through 500
  # if they are a multiple of either 2 or 9, then add it onto the end of your list
  for i in range(501):
    if i % 2 == 0 or i % 9 == 0:
      build_list.append(i)
  print(build_list)
  # compute the sum of all of the numbers in the list
  print(sum(build_list)) 
  # print the sum of all of the numbers in the list
  
  # return the list (required to pass the tests)
  print('The sum of the list should be 69806.')
  return build_list()

Answer 1

お手数をかけてしまいほんとに申し訳ないです。
自分で解決できたのでコードを貼っておきます。

def build_list():

  build_list = []

  for i in range(501):
    if i % 2 == 0 or i % 9 == 0:
      build_list.append(i)
  return build_list

  build_list()
print('The sum of the list should be 69806.')

Comments

[Spursfun2002]

協力してくださった方々、ほんとにありがとうございました。

Answer 2

def build_list():
  # create an empty list
  build_list = []
  # test all of the numbers through 500
  # if they are a multiple of either 2 or 9, then add it onto the end of your list
  for i in range(501):
    if i % 2 == 0 or i % 9 == 0:
       print(build_list, end = ' ')
  # compute the sum of all of the numbers in the list
  all = 0
  for x in build_list:
    all = all * x
  # print the sum of all of the numbers in the list
  print(all)
  # return the list (required to pass the tests)
print('The sum of the list should be 69806.')
build_list()

このような形まで持っていけたのですが、このままだとOutputが
The sum of the list should be 69806.
[] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] 0

このようになってしまいます。どうしてでしょう？？

Comments

[hoshi-takanori]

build_list の中身はずっと空なので、まず add it onto the end of your list を実装しましょう。
参考: https://teratail.com/questions/14908

[Spursfun2002]

なるほど
わざわざ見つけていただきありがとうございます。

Answer 3

以下でどうでしょう？

print(sum([i for i in range(501) if i % 18 == 0]))

出力
6804

print(sum([i for i in range(501) if i % 2 == 0 or i % 9 == 0]))
```

69806

ということは、こういうことでしょうか？

```
def build_list():
    print(sum([i for i in range(501) if i % 2 == 0 or i % 9 == 0]))
build_list()
```

Comments

[Spursfun2002]

修正しましたが、なにもでませんでした。
回答ありがとうございます。

[DrqYuto]

それは良かったです。

[DrqYuto]

orで、書き直しました。お試しください。

[Spursfun2002]

すいませんわざわざ修正してくれてありがとうございます。
しかし何も出なくなってしまいました。ほんとに申し訳ないです。

[Spursfun2002]

print(build_list)でもリストは出たので他のところがだめなんですかね？

[Zuishin]

「他のところ」があるならダメでしょうね。これ一行で完結してます。

[Spursfun2002]

なるほど、他のところを使いながら作りたいんです。
ほんとに申し訳ないです。