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Which is faster in Python: x**.5 or math.sqrt(x)?
I've been wondering this for some time. As the title say, which is faster, the actual function or simply raising to the half power?
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Emacs: print key binding for a command or list all key bindings
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C-h f (or M-x describe-function) will show you the bindings for a command.
You are correct, C-h b (or M-x describe-bindings) will show you all bindings. C-h m (M-x describe-mode) is also handy to list bindings by mode.
You might also try C-h k...
Download large file in python with requests
Requests is a really nice library. I'd like to use it for download big files (>1GB).
The problem is it's not possible to keep whole file in memory I need to read it in chunks. And this is a problem with the following code
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Using os.walk() to recursively traverse directories in Python
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This will give you the desired result
#!/usr/bin/python
import os
# traverse root directory, and list directories as dirs and files as files
for root, dirs, files in os.walk("."):
path = root.split(os.sep)
print((len(path) - 1) * '---', os.path.basename(root))...
Is there a bash command which counts files?
Is there a bash command which counts the number of files that match a pattern?
14 Answers
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Replacement for “rename” in dplyr
...rted using dplyr, and was wondering if there is an easy way to rename variables using a function from dplyr, that is as easy to use as to plyr's rename ?
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Can you use reflection to find the name of the currently executing method?
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As of .NET 4.5 you can also use [CallerMemberName]
Example: a property setter (to answer part 2):
protected void SetProperty<T>(T value, [CallerMemberName] string property = null)
{
this.propertyValues[property] = value;
OnPropertyChan...
Split long commands in multiple lines through Windows batch file
How can I split long commands over multiple lines in a batch file?
5 Answers
5
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Should private helper methods be static if they can be static
Let's say I have a class designed to be instantiated. I have several private "helper" methods inside the class that do not require access to any of the class members, and operate solely on their arguments, returning a result.
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Trying to mock datetime.date.today(), but not working
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There are a few problems.
First of all, the way you're using mock.patch isn't quite right. When used as a decorator, it replaces the given function/class (in this case, datetime.date.today) with a Mock object only within the decorated function...