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Group by multiple columns in dplyr, using string vector input
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Does the call to one_of() do anything here? I think it is redundant in this context, as the expression is wrapped in a call to vars().
– knowah
Aug 15 '19 at 14:13
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Execute method on startup in Spring
...n and it executes just after the startup, but then it will execute periodically.
13 Answers
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What is the most “pythonic” way to iterate over a list in chunks?
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Finally got a chance to play around with this in a python session. For those who are as confused as I was, this is feeding the same iterator to izip_longest multiple times, causing it to consume successive values of the same seq...
Determine if Python is running inside virtualenv
...r sys.base_prefix did not ever exist. So a fully robust check that handles all of these cases could look like this:
import sys
def get_base_prefix_compat():
"""Get base/real prefix, or sys.prefix if there is none."""
return getattr(sys, "base_prefix", None) or getattr(sys, "real_prefix", No...
How to render a DateTime object in a Twig template
...rs of one nationality. International users should display the game date totally different, like extending the \DateTime class, and adding a __toString() method to it that checks the locale and acts accordingly.
Edit:
As pointed out by @Nic in a comment, if you use the Intl extension of Twig, you w...
Python decorators in classes
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Would something like this do what you need?
class Test(object):
def _decorator(foo):
def magic( self ) :
print "start magic"
foo( self )
print "end magic"
return magic
@_decorator
def bar( self ) :
print "normal call"
test ...
Print PHP Call Stack
I'm looking for a way to print the call stack in PHP.
15 Answers
15
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How to enable cURL in PHP / XAMPP
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On Debian with Apache 2:
apt-get install php5-curl
/etc/init.d/apache2 restart
(php4-curl if it's php4)
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导盲项目：什么场景非得用相机预览？按杖上按钮或定时拍照，识别后语音提醒...
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实时预览录制
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「后台录制」不勾、「使用前置摄像...
Installing SciPy with pip
It is possible to install NumPy with pip using pip install numpy .
15 Answers
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