質問編集履歴
3
該当のソースコードの変更
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### 該当のソースコード
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```python3
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# 元の処理
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# 1: 大吉、2: 吉、3: 中吉、4: 小吉、5: 凶、6:大凶
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import random
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if 'good' in path: good_list.append(row)
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from flask import Flask, render_template, request
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app = Flask(__name__)
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GOOD_FILE = 'input/fortune_good.txt'
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BAD_FILE = 'input/fortune_bad.txt'
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@app.route("/")
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def index():
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good_list = []
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bad_list = []
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for path in [GOOD_FILE, BAD_FILE]:
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with open(path, encoding='utf-8') as f:
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with open(path, encoding='utf-8') as f:
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#うまく動く
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for row in f:
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if 'good' in path: good_list.append(row)
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if 'bad' in path: bad_list.append(row)
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# 高階関数
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with open(path, encoding='utf-8') as f:
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fortune_list =
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#fortune_list = list(f)
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#リスト内法表記 エラー発生
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#good_list = [row for row in fortune_list if 'good' in path]
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#bad_list = [row for row in fortune_list if 'bad' in path]
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#高階関数へ書き換え エラー発生
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#good_list = list(filter(lambda x: 'good' in path, fortune_list))
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#bad_list = list(filter(lambda x: 'bad' in path, fortune_list))
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#うまく動く
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#good_list.extend([row for row in fortune_list if 'good' in path])
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#bad_list.extend([row for row in fortune_list if 'bad' in path])
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fortune = {}
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if request.args.get('fortune', ''):
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fortune['no'] = random.randint(1, 6)
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if fortune['no'] <= 4:
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fortune['message'] = random.choice(good_list)
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if fortune['no'] >= 5:
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fortune['message'] = random.choice(bad_list)
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return render_template('index.html', fortune=fortune)
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```
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### 試したこと
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2
エラーコードの追記
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@@ -13,7 +13,57 @@
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### 発生している問題・エラーメッセージ
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```
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Traceback (most recent call last)
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File "/home/appuser/venv/lib/python3.6/site-packages/flask/app.py", line 2309, in __call__
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return self.wsgi_app(environ, start_response)
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File "/home/appuser/venv/lib/python3.6/site-packages/flask/app.py", line 2295, in wsgi_app
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response = self.handle_exception(e)
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File "/home/appuser/venv/lib/python3.6/site-packages/flask/app.py", line 1741, in handle_exception
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reraise(exc_type, exc_value, tb)
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File "/home/appuser/venv/lib/python3.6/site-packages/flask/_compat.py", line 35, in reraise
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raise value
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File "/home/appuser/venv/lib/python3.6/site-packages/flask/app.py", line 2292, in wsgi_app
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response = self.full_dispatch_request()
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File "/home/appuser/venv/lib/python3.6/site-packages/flask/app.py", line 1815, in full_dispatch_request
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rv = self.handle_user_exception(e)
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File "/home/appuser/venv/lib/python3.6/site-packages/flask/app.py", line 1718, in handle_user_exception
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reraise(exc_type, exc_value, tb)
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File "/home/appuser/venv/lib/python3.6/site-packages/flask/_compat.py", line 35, in reraise
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raise value
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File "/home/appuser/venv/lib/python3.6/site-packages/flask/app.py", line 1813, in full_dispatch_request
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rv = self.dispatch_request()
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File "/home/appuser/venv/lib/python3.6/site-packages/flask/app.py", line 1799, in dispatch_request
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return self.view_functions[rule.endpoint](**req.view_args)
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File "/home/appuser/work/main.py", line 32, in index
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fortune['message'] = random.choice(good_list)
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File "/usr/lib/python3.6/random.py", line 260, in choice
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raise IndexError('Cannot choose from an empty sequence') from None
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IndexError: Cannot choose from an empty sequence
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IndexError: Cannot choose from an empty sequence
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```
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### 該当のソースコード
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1
前提の追加
title
CHANGED
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File without changes
|
body
CHANGED
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@@ -1,5 +1,6 @@
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1
1
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### 前提・実現したいこと
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2
2
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3
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PyQというプログラミング学習サービスで
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3
4
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for row in f:
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4
5
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if 'good' in path: good_list.append(row)
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6
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if 'bad' in path: bad_list.append(row)
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