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What does |= (ior) do in Python?
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|= performs an in-place+ operation between pairs of objects. In particular, between:
sets: a u...
What is the point of noreturn?
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Can't seem to discard changes in Git
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53
This has been bothering me for a while, almost every repo I'd check out had changes that I could...
Stop pip from failing on single package when installing with requirements.txt
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Running each line with pip install may be a workaround.
cat requirements.txt | xargs -n 1 pip ...
Awk学习笔记 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... 2.1. awk的语法有两种形式
2.2. 命令选项
3. 模式和操作
3.1. 模式
3.2. 操作
4. awk的环境变量
5. awk运算符
6. 记录和域
6.1. 记录
6.2. 域
6.3. 域分隔符
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How to implement a ViewPager with different Fragments / Layouts
...ifferent fragment Types and different layout files.
In this case, I have 3 Fragment classes, and a different layout file for each class. In order to keep things simple, the fragment-layouts only differ in their background color. Of course, any layout-file can be used for the Fragments.
FirstFragm...
Can I mask an input text in a bat file?
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Up to XP and Server 2003, you can make use of another included tool (VBScript) - the following two scripts do the job you want.
First, getpwd.cmd:
@echo off
<nul: set /p passwd=Password:
for /f "delims=" %%i in ('cscript /nologo getpwd.vbs') ...
How to use C++ in Go
...go foo_test.go
rm -f _test/foo.a
gopack grc _test/foo.a _gotest_.6 foo.cgo3.6
1
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How do I remove the passphrase for the SSH key without having to create a new key?
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2034
Short answer:
$ ssh-keygen -p
This will then prompt you to enter the keyfile location, the o...
How to export collection to CSV in MongoDB?
...TE:
This commit: https://github.com/mongodb/mongo-tools/commit/586c00ef09c32c77907bd20d722049ed23065398 fixes the docs for 3.0.0-rc10 and later. It changes
Fields string `long:"fields" short:"f" description:"comma separated list of field names, e.g. -f name,age"`
to
Fields string `long:"fields"...