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How do I install an old version of Django on virtualenv?
This may sound like a stupid question, since the very purpose of virtualenv is to this exactly: Installing some specific version of a package (in this case Django) inside the virtual environment. But it's exactly what I want to do, and I can't figure it out.
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Write string to output stream
I have several output listeners that are implementing OutputStream.
It can be either a PrintStream writing to stdout or to a File, or it can be writing to memory or any other output destination; therefore, I specified OutputStream as (an) argument in the method.
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How does the Meteor JavaScript framework work? [closed]
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Meteor is a framework that elegantly updates HTML in realtime.
The beauty of Meteor is that you only need to create the templates and the data models. The rest of the usual boilerplate code is hidden away. You don't need to write all the sync-ing code.
The key pieces ...
App Inventor 2 扩展开发实战：从Java小白到发布第一个.aix自定义插件 - Ap...
...吧！
参考文档：https://www.fun123.cn/reference/other/extensions.html
社区提问：https://community.appinventor.mit.edu/
On delete cascade with doctrine2
I'm trying to make a simple example in order to learn how to delete a row from a parent table and automatically delete the matching rows in the child table using Doctrine2.
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In Unix, can I run 'make' in a directory without cd'ing to that directory first?
In Unix, can I run make in a directory without cd 'ing to that directory first?
5 Answers
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Skip Git commit hooks
I'm looking at a git hook which looks for print statements in Python code. If a print statement is found, it prevents the git commit.
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How do I do redo (i.e. “undo undo”) in Vim?
... the U key to undo and Ctrl + r to redo. Have a look at http://www.vim.org/htmldoc/undo.html.
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Redis strings vs Redis hashes to represent JSON: efficiency?
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It depends on how you access the data:
Go for Option 1:
If you use most of the fields on most of your accesses.
If there is variance on possible keys
Go for Option 2:
If you use just single fields on most of your accesses.
If you always know which fields are available
P.S.: As a rule o...
Python non-greedy regexes
How do I make a python regex like "(.*)" such that, given "a (b) c (d) e" python matches "b" instead of "b) c (d" ?
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