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Looping over a list in Python
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Try this,
x in mylist is better and more readable than x in mylist[:] and your len(x) should be equal to 3.
>>> mylist = [[1,2,3],[4,5,6,7],[8,9,10]]
>>> for x in mylist:
... if len(x)==3:
... print x
...
[1, 2, 3]
[8, 9, 10]
or ...
ipython notebook clear cell output in code
In a iPython notebook, I have a while loop that listens to a Serial port and print the received data in real time.
3 Answ...
Remove all the children DOM elements in div
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Just to be pedantic --- removing DOM nodes without corresponding JS objects will lead to memory leaks.
– Eugene Lazutkin
Feb 10 '11 at 1:28
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What is sandboxing?
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A sandpit or sandbox is a low, wide container or shallow depression filled with sand in which children can play. Many homeowners with children build sandpits in their backyards because, unlike much playground equipment, they can be eas...
Any reason to write the “private” keyword in C#?
..., protected , internal , etc. it will be private by default). (Please correct me if I am wrong.)
9 Answers
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Difference between constituency parser and dependency parser
...s. Non-terminals in the tree are types of phrases, the terminals are the words in the sentence, and the edges are unlabeled. For a simple sentence "John sees Bill", a constituency parse would be:
Sentence
|
+-------------+------------+
| ...
Very simple log4j2 XML configuration file using Console and File appender
...ize your logger
I did set the immediateFlush="false" since this is better for SSD lifetime. If you need the log right away in your log-file remove the parameter or set it to true
share
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improve th...
How to create a custom string representation for a class object?
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Implement __str__() or __repr__() in the class's metaclass.
class MC(type):
def __repr__(self):
return 'Wahaha!'
class C(object):
__metaclass__ = MC
print C
Use __str__ if you mean a readable stringification, use __repr__ for unambigu...
Best way to read a large file into a byte array in C#?
...several files at the same time (different page requests), so I am looking for the most optimized way for doing this without taxing the CPU too much. Is the code below good enough?
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Reorder levels of a factor without changing order of values
I have data frame with some numerical variables and some categorical factor variables. The order of levels for those factors is not the way I want them to be.
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