小编Tha*_*ser的帖子

尝试使用pip从cmd安装Django.

Python 2.7.3, Windows 7

Env var(...C:\Python27;C:\Python27\Lib\site-packages\;C:\Python27\Scripts\;)

    help("pip")
    .
    .
    .
    .
    VERSION
        1.3.1

    pip install Django
    File "<stdin>", line 1
    pip install Django
          ^
    SyntaxError: invalid syntax

在Flask教程之后,运行Win 7,Python 2.7.3,virtualenv,我陷入了第3步:创建数据库http://flask.pocoo.org/docs/tutorial/dbinit/#tutorial-dbinit

可以通过将schema.sql文件传递到sqlite3命令来创建这样的模式,如下所示:

sqlite3 /tmp/flaskr.db < schema.sql

Run Code Online (Sandbox Code Playgroud)

如何运行此命令,因为CMD <venv>返回:

"sqlite3"未被识别为内部或外部命令,可操作程序或批处理文件.

这一步是否必要？

Folder Project,2个文件schema.sql和flaskr.py.

schema.sql文件

drop table if exists entries;
create table entries (
  id integer primary key autoincrement,
  title string not null,
  text string not null
);

flaskr.py

# all the imports
import sqlite3
from flask import Flask, request, session, g, redirect, url_for, \
abort, render_template, flash
from contextlib import closing
# configuration
DATABASE = '/tmp/flaskr.db'
DEBUG = True
SECRET_KEY = 'development key'
USERNAME = 'admin'
PASSWORD = …

我正在制作检查字符串(电子邮件)的算法 - 就像"电子邮件地址有效",但它们是规则.电子邮件的第一部分必须是包含1-8个字符的字符串(可以包含字母,数字,下划线[_] ...电子邮件包含的所有部分)以及@电子邮件的第二部分之后拥有1-12个字符的字符串(也包含所有合法表达式),它必须以顶级域名.com结尾

email = raw_input ("Enter the e-mail address:")
length = len (email)
if length > 20 
    print "Address is too long"
elif lenght < 7:
    print "Address is too short"  
if not email.endswith (".com"):   
    print "Address doesn't contain correct domain ending"   
try:
    first_part = len (splitting[0])
    second_part = len(splitting[1])  

    account = splitting[0]
    domain = splitting[1] 

    list = "abcdefghijklmopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_."

    for c in account: 
        if c not in list:
            print "Invalid char", "->", c,"<-", "in account name of e-mail" …