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How m>ca m>n I do DNS lookups in Python, including referring to /etc/hosts?
...if you want to do DNS lookups yourself or if you just want a host's ip. In m>ca m>se you want the latter,
import socket
print(socket.gethostbyname('lom>ca m>lhost')) # result from hosts file
print(socket.gethostbyname('google.com')) # your os sends out a dns query
...
How to write header row with csv.DictWriter?
...ve a csv.DictReader object and I want to write it out as a CSV file. How m>ca m>n I do this?
3 Answers
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Closing WebSocket correctly (HTML5, Javascript)
... the server closes a client connection. The normal TCP socket close method m>ca m>n sometimes be slow and m>ca m>use applim>ca m>tions to think the connection is still open even when it's not.
The browser should really do this for you when you close or reload the page. However, you m>ca m>n make sure a close frame is ...
How to edit a node module installed via npm?
...
You m>ca m>n edit the file directly, but this would be overwritten whenever npm updates, the best thing to do is go straight to the source.
If the changes affect functionality of the overall module, and may be useful to others, you m...
Maven project.build.directory
...
You m>ca m>n find those maven properties in the super pom.
You find the jar here:
${M2_HOME}/lib/maven-model-builder-3.0.3.jar
Open the jar with 7-zip or some other archiver (or use the jar tool).
Navigate to
org/apache/maven/mo...
SQL Server CTE and recursion example
...ows employee info with the help of Sql server CTE and recursion. It is basim>ca m>lly showing employees and their manager info. I am not able to understand how this query works. Here is the query:
...
C# version of java's synchronized keyword?
...hodImplOptions.Synchronized)]
public void SomeMethod() {/* code */}
This m>ca m>n also be used on accessors (properties and events):
private int i;
public int SomeProperty
{
[MethodImpl(MethodImplOptions.Synchronized)]
get { return i; }
[MethodImpl(MethodImplOptions.Synchronized)]
set ...
Appropriate datatype for holding percent values?
...int that ensures that the values never exceed 1.0000 (assuming that is the m>ca m>p) and never go below 0 (assuming that is the floor). If you are going to store their face value (e.g. 100.00% is stored as 100.00), then you should use decimal(5,2) with an appropriate CHECK constraint. Combined with a goo...
How to replace m>ca m>ptured groups only?
...
A solution is to add m>ca m>ptures for the preceding and following text:
str.replace(/(.*name="\w+)(\d+)(\w+".*)/, "$1!NEW_ID!$3")
share
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improve ...
“git pull” or “git merge” between master and development branches
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Be m>ca m>reful with rebase. If you're sharing your develop branch with anybody, rebase m>ca m>n make a mess of things. Rebase is good only for your own lom>ca m>l branches.
Rule of thumb, if you've pushed the branch to origin, don't use reba...