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Filter dataframe rows if value in column is in a set list of values [duplicate]
I have a Python pandas DataFrame rpt :
7 Answers
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Check if a value is in an array (C#)
...lement == "perls");
bool b = Array.Exists(array, element => element == "python");
bool c = Array.Exists(array, element => element.StartsWith("d"));
bool d = Array.Exists(array, element => element.StartsWith("x"));
// Display bools.
Console.WriteLine(a);
Console.WriteLine(b);
Console.WriteL...
Is there a Unix utility to prepend timestamps to stdin?
I ended up writing a quick little script for this in Python, but I was wondering if there was a utility you could feed text into which would prepend each line with some text -- in my specific case, a timestamp. Ideally, the use would be something like:
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Get the new record primary key ID from MySQL insert query?
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If in python using pymysql, from the cursor you can use cursor.lastrowid
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What to do on TransactionTooLargeException
... my code leaked some file descriptors, the number of which is maximized in linux (typically 1024), and this seems to have triggered the exception. So it was a resource issue after all. I verified this by opening /dev/zero 1024 times, which resulted in all kinds of weird exceptions in UI related acti...
create a trusted self-signed SSL cert for localhost (for use with Express/Node)
...nitely simpler:
Install mkcert, there are instructions for macOS/Windows/Linux
mkcert -install to create a local CA
mkcert localhost 127.0.0.1 ::1 to create a trusted cert for localhost in the current directory
You're using node (which doesn't use the system root store), so you need to specify the...
How do I search for an object by its ObjectId in the mongo console?
...ii - this example is for the MongoShell. It looks like you're running from Python, in which case you would want to do something like: db.test.find({'_id': ObjectId('4ecc05e55dd98a436ddcc47c')})
– MPlanchard
Mar 22 '17 at 0:58
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What unique features does Firebug have that are not built-in to Firefox?
...r Developer Tools
Mozilla today launched Firefox 48 for Windows, Mac, Linux, and Android. The browser has gained multi-processor support (finally), enhanced protection against harmful downloads, and media improvements on Android. Support for old OS X versions and Android Gingerbread has been dr...
Recommended Vim plugins for JavaScript coding? [closed]
...avs = {
\ '*' : [],
\ 'ruby' : [],
\ 'python' : [],
\ 'perl' : [],
\ 'xml' : [],
\ 'html' : [],
\ 'xhtml' : [],
\ 'css' : [],
\ 'javascript' : [],
\ 'actionscript' : [],
...
Fixing Sublime Text 2 line endings?
...lier).
The Line Feed (LF) character (0x0A, \n) [...] UNIX based systems (Linux, Mac OSX)
The End of Line (EOL) sequence (0x0D 0x0A, \r\n) [...] (non-Unix: Windows, Symbian OS).
If you have node_modules, build or other auto-generated folders, delete them before running the package.
When yo...