教程链接:http://flask.pocoo.org/docs/0.11/tutorial/dbinit/#tutorial-dbinit
我正在关注Flask教程.这是我的python脚本的当前设置.在本教程结束时,我正在尝试初始化数据库.但由于某种原因,我继续得到同样的错误.
# all the imports
import os
import sqlite3
from flask import Flask, request, session, g, redirect, url_for, abort, \
render_template, flash
# create our little application :)
app = Flask(__name__)
app.config.from_object(__name__)
# Load default config and override config from an environment variable
app.config.update(dict(
DATABASE=os.path.join(app.root_path, 'flaskr.db'),
SECRET_KEY='development key',
USERNAME='admin',
PASSWORD='default'
))
app.config.from_envvar('FLASKR_SETTINGS', silent=True)
def connect_db():
"""Connects to the specific database."""
rv = sqlite3.connect(app.config['DATABASE'])
rv.row_factory = sqlite3.Row
return rv
def init_db():
db = get_db()
with app.open_resource('schema.sql', mode='r') …Run Code Online (Sandbox Code Playgroud) 我已经安装并重新安装了 npm 来尝试运行 ganache,但没有成功..真的需要帮助!
(基本)用户 bin % npm install -g ganache-cli
4秒内改了6个包,审计了102个包
2个套餐正在寻求资金运行npm fund详情
8 个漏洞(7 个中等,1 个高)
要解决不需要注意的问题,请运行:npmauditfix
要解决所有问题(包括重大更改),请运行:npmauditfix --force
运行npm audit以获取详细信息。(基本)用户 bin % ganache-cli zsh:找不到命令:ganache-cli
我目前正在阅读学习Python的艰难之路,我对以下代码中的一行有疑问.
cities = {'CA': 'San Francisco', 'MI': 'Detroit', 'FL': 'Jacksonville'}
cities['NY'] = 'New York'
cities['OR'] = 'Portland'
def find_city(themap, state):
if state in themap:
return themap[state]
else:
return "Not found."
cities['_find'] = find_city
while True:
print "State? (Enter to quit)"
state = raw_input(">")
#This is the line I have question for
if not state: break
city_found = cities['_find'](cities, state)
print city_found
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print发表一个声明break而且从未打印过.with open('result.txt', 'r') as f:
data = f.read()
print 'What type is my data:'
print type(data)
for i in data:
print "what is i:"
print i
print "what type is i"
print type(i)
print i.encode('utf-8')
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我有文件字符串,我正在尝试读取文件并按空格分割单词并将其保存到列表中.以下是我的代码:
有人请帮忙!
更新:
我将在这里详细描述我想要做的事情,以便为人们提供更多背景信息:我要做的目标是:1.将中文文本分解为句子,并检测基本的结尾标点符号.2.取每个句子并使用工具jieba将字符标记为有意义的单词.例如,两个汉字学,生,将组合在一起产生一个标记'学生'(意思是学生).3.将句子中的所有标记保存到列表中.因此,最终列表中将包含多个列表,因为段落中有多个句子.
# coding: utf-8
#encoding=utf-8
import jieba
cutlist = "???".decode('utf-8')
test = "???????????and Peter from US?????????????????????????????????????????????????6?????????????????200???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????"
#FindToken check whether the character has the ending punctuation
def FindToken(cutlist, char):
if char in cutlist:
return True
else:
return False
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'''
剪切检查字符串列表中的每个项目,如果该项目不是结束标点符号,则会将其保存到名为line的临时列表中.当遇到结束标点符号时,它会将已在列表行中收集的完整句子保存到最终列表中."""
def cut(cutlist,test): …Run Code Online (Sandbox Code Playgroud) 我通过删除 Postgres.app 桌面应用程序将 Postgres.app 从 9.6 降级到 9.5。我通过执行以下操作更新了数据库
(我通过下载 Postgres.app 桌面应用程序下载了 Postgres,并通过 pip install Django 安装了 Django)
sudo /usr/libexec/locate.updatedb
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看起来它正在从正确的目录启动数据库。
/Applications/Postgres.app/Contents/Versions/9.5/bin/initdb
/Applications/Postgres.app/Contents/Versions/9.5/share/doc/postgresql/html/app-initdb.html
/Applications/Postgres.app/Contents/Versions/9.5/share/man/man1/initdb.1
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但是,当我尝试在 Django 应用程序中进行迁移时,路径看起来仍然指向 9.6 版本的 Postgress
Traceback (most recent call last):
File "manage.py", line 22, in <module>
execute_from_command_line(sys.argv)
File "/Users/me/Desktop/myapp/venv/lib/python2.7/site-packages/django/core/management/__init__.py", line 367, in execute_from_command_line
utility.execute()
File "/Users/me/Desktop/myapp/venv/lib/python2.7/site-packages/django/core/management/__init__.py", line 341, in execute
django.setup()
File "/Users/me/Desktop/myapp/venv/lib/python2.7/site-packages/django/__init__.py", line 27, in setup
apps.populate(settings.INSTALLED_APPS)
File "/Users/me/Desktop/myapp/venv/lib/python2.7/site-packages/django/apps/registry.py", line 108, in populate
app_config.import_models(all_models)
File "/Users/me/Desktop/myapp/venv/lib/python2.7/site-packages/django/apps/config.py", line 199, in import_models
self.models_module = import_module(models_module_name)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/importlib/__init__.py", …Run Code Online (Sandbox Code Playgroud)