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Allowed characters in Linux environment variable names
...llowed in Linux environment variable names? My cursory search of man pages and the web did only produce information about how to work with variables, but not which names are allowed.
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How to download image from url
...emp\image35.png");
}
These methods are almost same as DownloadString(..) and DownloadStringAsync(...). They store the file in Directory rather than in C# string and no need of Format extension in URi
If You don't know the Format(.png, .jpeg etc) of Image
public void SaveImage(string filename, Im...
detach all packages while working in R
...nly names(sessionInfo()$loadedOnly) to explicitly attached packages first, and then detach the packages, as so.
lapply(names(sessionInfo()$loadedOnly), require, character.only = TRUE)
invisible(lapply(paste0('package:', names(sessionInfo()$otherPkgs)), detach, character.only=TRUE, unload=TRUE, force...
Hash function that produces short hashes?
Is there a way of encryption that can take a string of any length and produce a sub-10-character hash? I want to produce reasonably unique ID's but based on message contents, rather than randomly.
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How can I convert JSON to CSV?
...mething that not hard code i thing it better id i can use f.writerow(a) and the a is some variabel that i declare before thanks before
– little_fish
Dec 9 '09 at 8:16
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How to get the last N rows of a pandas DataFrame?
I have pandas dataframe df1 and df2 (df1 is vanila dataframe, df2 is indexed by 'STK_ID' & 'RPT_Date') :
3 Answers
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How to turn on/off ReactJS 'development mode'?
...he other answer assumes you are using external pre-built files from react, and while correct that is not how most folks are going to or should consume React as a package. Moreover, at this point most every React library and package also relies on the same convention to toggle dev time helpers off du...
How to obtain the number of CPUs/cores in Linux from the command line?
... awk '{print $4}'
which should return (for example) 8 (whereas the command above would return 16)
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Setting the correct encoding when piping stdout in Python
...t of a Python program, the Python interpreter gets confused about encoding and sets it to None. This means a program like this:
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When and why should I use a namedtuple instead of a dictionary? [duplicate]
...oo
self.bar = bar
mycontainer = Container(name, date, foo, bar)
and not change the attributes after you set them in __init__, you could instead use
Container = namedtuple('Container', ['name', 'date', 'foo', 'bar'])
mycontainer = Container(name, date, foo, bar)
as a replacement.
Of c...