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how do I insert a column at a specific column index in pandas?
...B': [1, 2, 3], 'C': [4, 5, 6]})
df
Out:
B C
0 1 4
1 2 5
2 3 6
idx = 0
new_col = [7, 8, 9] # can be a list, a Series, an array or a scalar
df.insert(loc=idx, column='A', value=new_col)
df
Out:
A B C
0 7 1 4
1 8 2 5
2 9 3 6
...
How can I catch a ctrl-c event?
...ude <stdlib.h>
#include <stdio.h>
#include <unistd.h>
void my_handler(int s){
printf("Caught signal %d\n",s);
exit(1);
}
int main(int argc,char** argv)
{
struct sigaction sigIntHandler;
sigIntHandler.sa_handler = my_handler;
sigemptyset(&sig...
Difference between Service, Async Task & Thread?
...t wrong all of them are used to do some stuff in background. So, how to decide which to use and when?
6 Answers
...
In-place edits with sed on OS X
...
You can use the -i flag correctly by providing it with a suffix to add to the backed-up file. Extending your example:
sed -i.bu 's/oldword/newword/' file1.txt
Will give you two files: one with the name file1.txt that contains the substitution, and one with the n...
MySQL/SQL: Group by date only on a Datetime column
...
Thanks for the info. I can't decide if this is a good thing or not, but it fits nicely into my opinion about MySQL. From a technical POV - how is this supposed to work? I only can imagine that the query parser substitutes the alias in the GROUP BY clause wi...
How do I get the function name inside a function in PHP?
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
Filter Fiddler traffic
Is it possible to instruct Fiddler to only show me traffic directed to a specific host name?
In other words, can Fiddler traffic be filtered for Host?
...
Immediate Child selector in LESS
... parser (like you felt about the other answer). Let me explain. Like you said, & always refers to the current (parent) selector. So whatever that's after it should apply to the parent. And, that's pseudo-classes' role. Immediate child classes are closer to ****gasp**** child classes rather than ...
How to permanently export a variable in Linux?
...t by the caller and changed from within the process. Changing env from outside a running process is unusual and not doable with export, but try with a debugger
– Antoine
Nov 28 '13 at 9:44
...
difference between Product Backlog Item and Feature in Team Foundation work item types
...me very brief information about Product Backlog Items and Features and the idea behind creating a new work item type. http://www.visualstudio.com/en-us/news/2013-jun-3-vso.aspx
The difference between the two comes down to what granularity you want to work with your work items at:
Product Backlog ...