当我运行workon env1时
-bash: /usr/local/bin/python: No such file or directory
-bash: /usr/local/bin/python: No such file or directory
显示(同一行显示两次)。但是,我在env1中,因为它显示在我的命令提示符中。当我运行which virtualenvwrapper.sh时,我得到
/Library/Frameworks/Python.framework/Versions/3.4/bin/virtualenvwrapper.sh
我看到了另一个运行ln -s /Librar
当我运行virtualenv时,我得到这样的结果:
$ virtualenv
-bash: /usr/local/bin/virtualenv: /usr/local/opt/python/bin/python2.7: bad interpreter: No such file or directory
virtualenv是今天才开始这样做的。它昨天起作用了。它中断是因为virtualenv是一个使用了不存在的Python解释器的Python脚本:
$ head -1 $(which virtualenv)
#!/usr/local/opt/python/bin/python2.7
在我的机
Werkzeug v0.11 i使用函数ClosingIterator装饰了wsgi.py文件中的类Werkzeug的源代码:
wsgi.py
@implements_iterator
class ClosingIterator(object):
"""The WSGI specification requires that all middlewares and gateways
respect the `close` callback of an iterator. Because it is useful to add
another
当我运行我的计算器,它给出以下结果;
Select operation.
1.Add
2.Subtract
3.Multiply
4.Divide
Enter choice(1/2/3/4):3
Enter first number: 1
Enter second number: 5
Invalid! Input
有谁能向我解释一下为什么它要用else语句来响应,我已经检查了代码很多次了,而且在经历了很多挫折之后,我已经直接复制了代码,但是结果是一样的?
# A simple calculator that can add, subtract, multiply and divide.
#
从“使用django学习网站开发”学习django。在第3章,构建书签数据模型中,我遵循了给出的说明和代码,但--
from django.contrib.auth.models import User
class Bookmark(models.Model):
title = models.CharField(maxlength=200)
user = models.ForeignKey(User)
link = models.ForeignKey(Link)
我在哪里改变了
title = models.CharField(maxlength=200)
转到
title = models.