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Is it acceptable and safe to run pip install under sudo?
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105
Use a virtual environment:
$ virtualenv myenv
.. some output ..
$ source myenv/bin/activate
(...
How do I create a class instance from a string name in ruby?
...const_get c}
=> Foo::Bar
> clazz.new
=> #<Foo::Bar:0x0000010110a4f8>
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How do you avoid over-populating the PATH Environment Variable in Windows?
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12 Answers
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How to do a GitHub pull request
...ull-Request itself, see "How to write the perfect pull request" (January 2015, GitHub)
March 2016: New PR merge button option: see "Github squash commits from web interface on pull request after review comments?".
The maintainer of the repo can chose to merge --squash those PR commits.
Afte...
Format timedelta to string
...tr(). Here's an example:
import datetime
start = datetime.datetime(2009,2,10,14,00)
end = datetime.datetime(2009,2,10,16,00)
delta = end-start
print(str(delta))
# prints 2:00:00
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How to kill zombie process
...e the zombie. (After the parent dies, the zombie will be inherited by pid 1, which will wait on it and clear its entry in the process table.) If your daemon is spawning children that become zombies, you have a bug. Your daemon should notice when its children die and wait on them to determine thei...
LINQ to read XML
... XDocument xdoc = XDocument.Load("data.xml");
//Run query
var lv1s = from lv1 in xdoc.Descendants("level1")
select new {
Header = lv1.Attribute("name").Value,
Children = lv1.Descendants("level2")
};
//Loop through r...
Android ListView headers
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+100
Here's how I do it, the keys are getItemViewType and getViewTypeCount in the Adapter class. getViewTypeCount returns how many types...
Python function global variables?
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edited Feb 28 '15 at 16:40
Cristian Ciupitu
17.3k77 gold badges4646 silver badges6868 bronze badges
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How to concatenate text from multiple rows into a single text string in SQL server?
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