我在python上的文件结构如下:
烧瓶主机(文件夹),其中包含:
应用程序.py
图书数据库
app.py包含-:
import flask
from flask import request, jsonify
import sqlite3
app = flask.Flask(__name__)
app.config["DEBUG"] = True
def dict_factory(cursor, row):
d = {}
for idx, col in enumerate(cursor.description):
d[col[0]] = row[idx]
return d
@app.route('/', methods=['GET'])
def home():
return '''<h1>Distant Reading Archive</h1>
<p>A prototype API for distant reading of science fiction novels.</p>'''
@app.route('/api/v1/resources/books/all', methods=['GET'])
def api_all():
conn = sqlite3.connect('books.db')
conn.row_factory = dict_factory
cur = conn.cursor()
all_books = cur.execute('SELECT * FROM books;').fetchall()
return jsonify(all_books)
@app.errorhandler(404)
def page_not_found(e):
return "<h1>404</h1><p>The resource could not be found.</p>", 404
@app.route('/api/v1/resources/books', methods=['GET'])
def api_filter():
query_parameters = request.args
id = query_parameters.get('id')
published = query_parameters.get('published')
author = query_parameters.get('author')
query = "SELECT * FROM books WHERE"
to_filter = []
if id:
query += ' id=? AND'
to_filter.append(id)
if published:
query += ' published=? AND'
to_filter.append(published)
if author:
query += ' author=? AND'
to_filter.append(author)
if not (id or published or author):
return page_not_found(404)
query = query[:-4] + ';'
conn = sqlite3.connect('books.db')
conn.row_factory = dict_factory
cur = conn.cursor()
results = cur.execute(query, to_filter).fetchall()
return jsonify(results)
if __name__ == '__main__':
app.run()
我正在努力学习本教程
https://programminghistorian.org/en/lessons/creating-apis-with-python-and-flask
我的网站位于:
http://vivanks.pythonanywhere.com
但是当我通过
http://127.0.0.1:5000/api/v1/resources/books?author=Connie+Willis
它显示错误:
sqlite3.operational错误:没有这样的表:books
有什么帮助可以修复这个并在pythonanywhere.com上托管应用程序吗?
在我的本地机器上它工作得很好
最佳答案
在Pythonanywnere上,当指向模板或静态文件以外的内容(存储在它们自己的正确目录中,可由flask
访问)时,必须提供完整路径:
conn = sqlite3.connect('/home/your_username/flaskhost/books.db')
关于python - OperationalError:没有这样的表:python书籍随处可见,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/54580133/