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[英]I got this error when i try to run the sqlite database by using python
[英]I got a database error when Im using Django
很高興見到你。 我來自日本,如果我沒有正確使用英語,請教我。 讓我問一些問題。 我創建了一個 django 項目,並在終端嘗試了這段代碼。
python manage.py startapp myhp
然后創建了models.py 文件。 然后我寫了一些 class 並在終端嘗試了這段代碼。
python manage.py startapp runserver
然后出現以下錯誤。(我不知道哪一點很重要,所以我會全部顯示)
Traceback (most recent call last):
File "C:\ProgramData\Anaconda3\lib\threading.py", line 926, in _bootstrap_inner
self.run()
File "C:\ProgramData\Anaconda3\lib\threading.py", line 870, in run
self._target(*self._args, **self._kwargs)
File "C:\ProgramData\Anaconda3\lib\site-packages\django\utils\autoreload.py", line 53, in wrapper
fn(*args, **kwargs)
File "C:\ProgramData\Anaconda3\lib\site-packages\django\core\management\commands\runserver.py", line 120, in inner_run
self.check_migrations()
File "C:\ProgramData\Anaconda3\lib\site-packages\django\core\management\base.py", line 458, in check_migrations
executor = MigrationExecutor(connections[DEFAULT_DB_ALIAS])
File "C:\ProgramData\Anaconda3\lib\site-packages\django\db\migrations\executor.py", line 18, in __init__
self.loader = MigrationLoader(self.connection)
File "C:\ProgramData\Anaconda3\lib\site-packages\django\db\migrations\loader.py", line 49, in __init__
self.build_graph()
File "C:\ProgramData\Anaconda3\lib\site-packages\django\db\migrations\loader.py", line 212, in build_graph
self.applied_migrations = recorder.applied_migrations()
File "C:\ProgramData\Anaconda3\lib\site-packages\django\db\migrations\recorder.py", line 76, in applied_migrations
if self.has_table():
File "C:\ProgramData\Anaconda3\lib\site-packages\django\db\migrations\recorder.py", line 56, in has_table
return self.Migration._meta.db_table in self.connection.introspection.table_names(self.connection.cursor())
File "C:\ProgramData\Anaconda3\lib\site-packages\django\db\backends\base\introspection.py", line 48, in table_names
return get_names(cursor)
File "C:\ProgramData\Anaconda3\lib\site-packages\django\db\backends\base\introspection.py", line 43, in get_names
return sorted(ti.name for ti in self.get_table_list(cursor)
File "C:\ProgramData\Anaconda3\lib\site-packages\django\db\backends\sqlite3\introspection.py", line 73, in get_table_list
ORDER BY name""")
File "C:\ProgramData\Anaconda3\lib\site-packages\django\db\backends\utils.py", line 100, in execute
return super().execute(sql, params)
File "C:\ProgramData\Anaconda3\lib\site-packages\django\db\backends\utils.py", line 68, in execute
return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
File "C:\ProgramData\Anaconda3\lib\site-packages\django\db\backends\utils.py", line 77, in _execute_with_wrappers
return executor(sql, params, many, context)
File "C:\ProgramData\Anaconda3\lib\site-packages\django\db\backends\utils.py", line 86, in _execute
return self.cursor.execute(sql, params)
File "C:\ProgramData\Anaconda3\lib\site-packages\django\db\utils.py", line 90, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "C:\ProgramData\Anaconda3\lib\site-packages\django\db\backends\utils.py", line 84, in _execute
return self.cursor.execute(sql)
File "C:\ProgramData\Anaconda3\lib\site-packages\django\db\backends\sqlite3\base.py", line 394, in execute
return Database.Cursor.execute(self, query)
django.db.utils.DatabaseError: file is not a database
我嘗試在同一目錄(hp/myhhp/test.py)中創建以下文件,並且效果很好。
import sqlite3
dbname = 'TEST.db'
conn = sqlite3.connect(dbname)
cur = conn.cursor()
cur.execute('SELECT * FROM persons')
for row in cur:
print(row)
cur.close()
conn.close()
重點是什么? 我期待着你的回答。
你不得不說python manage.py runserver ,而不是 python python manage.py startapp runserver :) 這就是你得到錯誤的原因。
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