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Convert a list of data frames into one data frame
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since it's 2018 and dplyr is both fast and a solid tool to use, I've changed this to the accepted answer. The years, they fly by!
– JD Long
Jan 12 '19 at 12:03
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Undoing a 'git push'
...s the phrase [remote rejected].
In this scenario, you will have to delete and recreate the branch.
git push origin :alpha-0.3.0
git push origin cc4b63bebb6:refs/heads/alpha-0.3.0
If this doesn't work - perhaps because you have receive.denyDeletes set, then you have to have direct access to the r...
Efficiently test if a port is open on Linux?
...mp;6
I'm using 6 as the file descriptor because 0,1,2 are stdin, stdout, and stderr. 5 is sometimes used by Bash for child processes, so 3,4,6,7,8, and 9 should be safe.
As per the comment below, to test for listening on a local server in a script:
exec 6<>/dev/tcp/127.0.0.1/445 || echo "N...
Case preserving substitute in Vim
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We do not deserve Tim Pope.
– Andrew Keeton
May 23 '19 at 19:47
1
This plu...
Putting an if-elif-else statement on one line?
...itting everything on one line would most likely violate PEP-8 where it is mandated that lines should not exceed 80 characters in length.
It's also against the Zen of Python: "Readability counts". (Type import this at the Python prompt to read the whole thing).
You can use a ternary expression in P...
CSS transition effect makes image blurry / moves image 1px, in Chrome?
...ecially the image-rendering CSS property.
For best practice accessibility and SEO wise you could replace the background image with an <img> tag using object-fit CSS property.
Original answer
Try this in your CSS:
.your-class-name {
/* ... */
-webkit-backface-visibility: hidden;
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Pandas: drop a level from a multi-level column index?
... If the index you are trying to drop is on the left (row) side and not the top (column) side, you can change "columns" to "index" and use the same method: >>> df.index = df.index.droplevel(1)
– Idodo
Nov 28 '18 at 12:13
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Speed comparison with Project Euler: C vs Python vs Erlang vs Haskell
I have taken Problem #12 from Project Euler as a programming exercise and to compare my (surely not optimal) implementations in C, Python, Erlang and Haskell. In order to get some higher execution times, I search for the first triangle number with more than 1000 divisors instead of 500 as stated...
What's the use of do while(0) when we define a macro? [duplicate]
I'm reading the linux kernel and I found many macros like this:
2 Answers
2
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How can I run PowerShell with the .NET 4 runtime?
...rShell (the engine) runs fine under .NET 4.0. PowerShell (the console host and the ISE) do not, simply because they were compiled against older versions of .NET. There's a registry setting that will change the .NET framework loaded systemwide, which will in turn allow PowerShell to use .NET 4.0 cla...