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C# using streams
...g with binary files or network protocols BinaryReader and BinaryWriter are what you might use. (If you're exchanging data with networks or other systems, you need to be mindful of endianness, but that's another post.)
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Reading a huge .csv file
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what worked for me was and is superfast is
import pandas as pd
import dask.dataframe as dd
import time
t=time.clock()
df_train = dd.read_csv('../data/train.csv', usecols=[col1, col2])
df_train=df_train.compute()
print("load ...
Achieving bright, vivid colors for an iOS 7 translucent UINavigationBar
...ht now, the best solution seems to be to just 'deal with it' and hope that whatever color you choose can render a translucent effect. I am still looking into ways of getting around this.
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linux tee is not working with python?
...o use "sys.stdin.read‐
line()" inside a "while 1:" loop.
So what you can do is:
/usr/bin/python -u client.py >> logfile 2>&1
Or using tee:
python -u client.py | tee logfile
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Cropping an UIImage
...UIImage and return a small, square representation of an image, similar to what's seen in the album view of the Photos app. (I know I could use a UIImageView and adjust the crop mode to achieve the same results, but these images are sometimes displayed in UIWebViews ).
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do..end vs curly braces for blocks in Ruby
...} has a higher precedence than do..end, so keep that in mind when deciding what you want to use.
P.S: One more example to keep in mind while you develop your preferences.
The following code:
task :rake => pre_rake_task do
something
end
really means:
task(:rake => pre_rake_task){ someth...
How to change the type of a field?
...n be simply read as "$set" the value of "a" to "$a" converted "$toString".
What's really new here, is being able in Mongo 4.2 to reference the document itself when updating it: the new value for "a" is based on the existing value of "$a".
Also note "$toString" which is a new aggregation operator int...
builtins.TypeError: must be str, not bytes
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Mind blown. Python3 has reimagined what to do with that little 'b'. It used to only annoy Windows users who would forget to include it (or couldn't because they were using stdio). Now it can annoy Python users on all platforms. Hopefully, it will be worth the...
How can I play sound in Java?
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For whatever reason, the top answer by wchargin was giving me a null pointer error when I was calling this.getClass().getResourceAsStream().
What worked for me was the following:
void playSound(String soundFile) {
File f ...
Faster s3 bucket duplication
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Also, what are your thoughts on this for a use case where I have 1k or less files, but they are larger in size (10gb)? Do you think I would see similar performance to you?
– frosty
Jul 6 '17 a...