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Are list-comprehensions and functional functions faster than “for loops”?
...ike map() , filter() and reduce() faster than a for loop? Why, technically, they run in a C speed , while the for loop runs in the python virtual machine speed ?.
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Get names of all keys in the collection
I'd like to get the names of all the keys in a MongoDB collection.
21 Answers
21
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Multiple inputs with same name through POST in php
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Vagrant stuck connection timeout retrying
...ure you are running through an SSH enabled client. Use Git bash. Download:
http://git-scm.com/downloads
Install a 32bit version of ubuntu like trusty32 or precise32. Just change the version in the vagrant file and reinstall vagrant in new directory.
Make sure you are using the latest vagrant and vir...
Correct way to use _viewstart.cshtml and partial Razor views?
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How to use `subprocess` command with pipes
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See the documentation on setting up a pipeline using subprocess: http://docs.python.org/2/library/subprocess.html#replacing-shell-pipeline
I haven't tested the following code example but it should be roughly what you want:
query = "process_name"
ps_process = Popen(["ps", "-A"], stdout=PI...
Meaning of $? (dollar question mark) in shell scripts
...e other special variables like this, as you can see on this online manual: https://www.gnu.org/s/bash/manual/bash.html#Special-Parameters
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Declaration/definition of variables locations in ObjectiveC?
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How to retrieve a module's path?
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import a_module
print(a_module.__file__)
Will actually give you the path to the .pyc file that was loaded, at least on Mac OS X. So I guess you can do:
import os
path = os.path.abspath(a_module.__file__)
You can also try:
path = os.path.dirname(a_module.__file__)
To ge...
How do I loop through or enumerate a JavaScript object?
...uilt-in key-value pairs that have meta-information. When you loop through all the key-value pairs for an object you're looping through them too. hasOwnPropery() filters these out.
– danieltalsky
Jan 27 '12 at 15:56
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