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How to estimate how much memory a Pandas' DataFrame will need?
...n wondering... If I am reading, say, a 400MB csv file into a pandas dataframe (using read_csv or read_table), is there any way to guesstimate how much memory this will need? Just trying to get a better feel of data frames and memory...
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Complete Working Sample of the Gmail Three-Fragment Animation Scenario?
... a complete working sample of what I'll refer to as "the Gmail three-fragment animation" scenario. Specifically, we want to start with two fragments, like this:
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Read a file line by line assigning the value to a variable
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The following reads a file passed as an argument line by line:
while IFS= read -r line; do
echo "Text read from file: $line"
done < my_filename.txt
This is the standard form for reading lines from a file in a loop. Explanation:
IFS= (or IFS='') prevents lea...
How can I ask the Selenium-WebDriver to wait for few seconds in Java?
...dea of explicit wait is
WebDriverWait.until(condition-that-finds-the-element);
The concept of implicit wait is
driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
You can get difference in details here.
In such situations I'd prefer using explicit wait (fluentWait in particular...
MongoDB or CouchDB - fit for production? [closed]
I was wondering if anyone can tell me if MongoDB or CouchDB are ready for a production environment.
19 Answers
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ASP.NET Identity DbContext confusion
A default MVC 5 App comes with this piece of code in IdentityModels.cs - this piece of code is for all the ASP.NET Identity operations for the default templates:
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Hour from DateTime? in 24 hours format
So i have this DateTime? and what i want to do is to obtain the hour but show it in 24 hours format.
For example:
If the hour is 2:20:23 p.m. i want to convert it to 14:20 and that's it.
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Is there a way to follow redirects with command line cURL?
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Git resolve conflict using --ours/--theirs for all files
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the -l or --files-with-matches flag causes grep to output only the filename where the string was found. Scanning stops after first match, so each matched file is only output once.
The matched file names are then piped to xargs, a utility that breaks up the piped input stream into individual argu...
How do you install ssh-copy-id on a Mac?
...follow https://github.com/beautifulcode/ssh-copy-id-for-OSX but every time I run ssh-copy-id it gives me errors. Any ideas on how to get ssh-copy-id to install?
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