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How to pass password to scp?
...it with a tool like expect (there are handy bindings too, like Pexpect for Python).
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Disable migrations when running unit tests in Django 1.7
...n I run tests like this:
DJANGO_SETTINGS_MODULE="myapp.settings_test" python manage.py test
This fools migrate into thinking that the app is unmigrated, and so
every time a test database is created it reflects the current
structure of models.py.
In Django 1.9, this situation is impro...
How do I convert a numpy array to (and display) an image?
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img.show() don't work in ipython notebook.img_pil = Image.fromarray(img, 'RGB') display(img_pil.resize((256,256), PIL.Image.LANCZOS))
– mrgloom
Jun 11 '19 at 10:15
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What is a vertical tab?
... printer control language like postscript.
@Talvi Wilson noted it used in python '\v'.
print("hello\vworld")
Output:
hello
world
The above output appears to result in the default vertical size being one line. I have tested with perl "\013" and the same output occurs. This could be us...
How do I pass a class as a parameter in Java?
...u get suggest they didn't want people to do this with Java. Much easier in Python : )
– Andrew Puglionesi
Nov 1 '18 at 23:40
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MVC演化史 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...b MVC？这是因为截获请求的是Controller而不是View。
花絮：Python社区的Django框架宣称自己使用的是MTV，其实质仍然是Web MVC。
Web MVP
在Desktop的时代，微软通过WinForms实现MVP，把组件化编程发挥到了极致，大大提升了开发效率，随着...
How to determine if a process runs inside lxc/Docker?
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Handy Python function to check if running in Docker:
def in_docker():
""" Returns: True if running in a Docker container, else False """
with open('/proc/1/cgroup', 'rt') as ifh:
return 'docker' in ifh.read()
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Which timestamp type should I choose in a PostgreSQL database?
...e timezone in the database if possible
Random programming language note: Python's datetime data type is very good at maintaining the distinction between absolute vs relative times (albeit frustrating at first until you supplement it with a library like PyTZ).
EDIT
Let me explain the difference...
Create an array with same element repeated multiple times
In Python, where [2] is a list, the following code gives this output:
25 Answers
25
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联网 App 入门专题：5 课从共享留言到带图商品墙（附 .aia 源码与服务端） ...
...个专题用最短的路径把这件事讲通：
服务端只有一个 Python 文件，不用装数据库，双击就能在自己电脑上运行，见《网络微数据库后台搭建教程》。
App 只用原生组件：网络微数据库存数据，Web 客户端传图片，不需要拓展。...