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Using the RUN instruction in a Dockerfile with 'source' does not work
...p; workon myapp \
&& pip install -r /mycode/myapp/requirements.txt"
I hope it helps.
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Where should virtualenvs be created?
...ecific to your computer or operating system). Instead, keep a requirements.txt file using pip:
pip freeze > requirements.txt
and distribute that. This will allow others using your project to reinstall all the same requirements into their virtualenv with:
pip install -r requirements.txt
...
How can I have ruby logger log output to stdout as well as file?
...STDOUT)
logger.warn('This message goes to stdout')
logger.attach('logfile.txt')
logger.warn('This message goes both to stdout and logfile.txt')
logger.detach('logfile.txt')
logger.warn('This message goes just to stdout')
...
Is there a way to check if a file is in use?
...e file handle.
try
{
using (Stream stream = new FileStream("MyFilename.txt", FileMode.Open))
{
// File/Stream manipulating code here
}
} catch {
//check here why it failed and ask user to retry if the file is in use.
}
...
How do I completely uninstall Node.js, and reinstall from beginning (Mac OS X)
... -f -l -s -pf /var/db/receipts/org.nodejs.node.pkg.bom >> ~/filelist.txt
Manually review your file (located in your Home folder)
~/filelist.txt
Then delete the files:
cat ~/filelist.txt | while read f; do sudo rm /usr/local/${f}; done
sudo rm -rf /usr/local/lib/node /usr/local/lib/node_mod...
Is there a way to tell git to only include certain files instead of ignoring certain files?
...ctory"
directory/another_directory/*
# But don't ignore "file_to_be_staged.txt"
!directory/another_directory/file_to_be_staged.txt
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What is the Gradle artifact dependency graph command?
...
gradlew -q :app:dependencies > dependencies.txt
Will write all dependencies to the file dependencies.txt
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What is the python “with” statement designed for?
... setattr(sys, sname, stream)
with redirected(stdout=open("/tmp/log.txt", "w")):
# these print statements will go to /tmp/log.txt
print "Test entry 1"
print "Test entry 2"
# back to the normal stdout
print "Back to normal stdout again"
And finally, another example that create...
现实版《道士下山》：道长老梁的四面人生 - 轻松一刻 - 清泛网 - 专注C/C++...
...是一种信仰，任何人都可以，但出家就比较正式，有一套完整的仪式。那次，老梁不是去出家的。
由于上山太晚，他和朋友们住了下来。头天晚上，师父就把老梁单独叫过去，说“我给你起道名吧”。师父说：“你是我第八个...
CSS hack大全 - 创意 - 清泛网 - 专注C/C++及内核技术
...记往往造就的是我们更广泛的hack手段。下例的代码比较完整，大家可以选择参考。
实例代码：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" la...