by: Elmo Watson |
last post by:
Is there a way, with the System.IO class, to do a recursive list of a
directory structure?
For instance, in DirectoryInfo, you have GetDirectories and GetFiles ....
In Directory, you have...
|
by: bearophileHUGS |
last post by:
This post sums some things I have written in another Python newsgroup.
More than 40% of the times I use defaultdict like this, to count
things:
....
defaultdict(<type 'int'>, {'a': 5, 'r': 2,...
|
by: Raymond Hettinger |
last post by:
FWIW, here are three ways of writing constant functions for
collections.defaultdict():
d = defaultdict(int) # slowest way; works only for zero
d = defaultdict(lambda: 0) # faster way;...
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by: colin |
last post by:
Hi,
is it possible to have a recursive GetEnumerator for traversing a tree
structure ?
public IEnumerator<DTypeGetEnumerator()
{
return GetEnumerator(root);
|
by: Gordon Airporte |
last post by:
I was going to try tweaking defaultdict, but I can't for the life of me
find where the collections module or its structures are defined. Python 2.5.
|
by: metaperl.com |
last post by:
I'm reading http://norvig.com/spell-correct.html
and do not understand the expression listed in the subject which is
part of this function:
def train(features):
model =...
|
by: fizilla |
last post by:
Hello all!
I have the following weird problem and since I am new to Python I somehow cannot figure out an elegant solution. The problem reduces to the following question:
How to pickle a...
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by: Matthew Wilson |
last post by:
I used defaultdict.fromkeys to make a new defaultdict instance, but I
was surprised by behavior:
defaultdict(None, {'y': <type 'list'>, 'x': <type 'list'>})
<type 'list'>
...
|
by: Paul McGuire |
last post by:
1. With the current dict, the following code
a = { "A" : 1, "B" : 2 }
b = { "B" : 2, "A" : 1 }
a==b evaluates to True. I assume that if these were odicts, this
would evaluate to False.
...
|
by: ryjfgjl |
last post by:
In our work, we often receive Excel tables with data in the same format. If we want to analyze these data, it can be difficult to analyze them because the data is spread across multiple Excel files...
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by: BarryA |
last post by:
What are the essential steps and strategies outlined in the Data Structures and Algorithms (DSA) roadmap for aspiring data scientists? How can individuals effectively utilize this roadmap to progress...
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by: nemocccc |
last post by:
hello, everyone, I want to develop a software for my android phone for daily needs, any suggestions?
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by: Hystou |
last post by:
There are some requirements for setting up RAID:
1. The motherboard and BIOS support RAID configuration.
2. The motherboard has 2 or more available SATA protocol SSD/HDD slots (including MSATA, M.2...
|
by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However,...
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by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can...
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by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers,...
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by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven...
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by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each...
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