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Pycharm does not show plot
...his is old but I figured I'd clear up a misconception for other travelers. Setting plt.pyplot.isinteractive() to False means that the plot will on be drawn on specific commands to draw (i.e. plt.pyplot.show()). Setting plt.pyplot.isinteractive() to True means that every pyplot (plt) command will tri...
How to get a Fragment to remove itself, i.e. its equivalent of finish()?
... popBackStack() is the only solution which works when you want to set the action bar title back to the previous state after you delete the fragment. Otherwise I wouldn't need to combine the both high rated solutions from stackoverflow.com/questions/13472258/… and this solution here to alw...
How to change the port of Tomcat from 8080 to 80?
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In etc/default/tomcat7 set AUTHBIND=yes, to avoid a PermissionDenied error for the port 80.
– Markus Pscheidt
Jan 26 '15 at 8:20
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How do you copy a record in a SQL table but swap out the unique id of the new row?
... * INTO #TempRow FROM SourceTable WHERE KeyColumn = 'ABC';
UPDATE #TempRow SET KeyColumn = 'XYZ';
INSERT INTO SourceTable SELECT * FROM #TempRow;
DELETE #TempRow;
Once you have finished the drop the temp table.
DROP TABLE #TempRow;
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Check if a given key already exists in a dictionary and increment it
...ary, how can I find out if a given key in that dictionary has already been set to a non-None value?
12 Answers
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How do I rename a Git repository?
...ructions to rename the project (will differ from host to host, but usually Settings is a good starting point).
Go to your local repository directory (i.e., open a command prompt and change to the repository's directory).
Determine the new URL (for example, git@github.com:User/project-new.git)
Set th...
Difference between sh and bash
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sh: http://man.cx/sh
bash: http://man.cx/bash
TL;DR: bash is a superset of sh with a more elegant syntax and more functionality. It is safe to use a bash shebang line in almost all cases as it's quite ubiquitous on modern platforms.
NB: in some environments, sh is bash. Check sh --version.
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How to iterate over arguments in a Bash script
...between the various "$@" notations, here is one more example:
$ cat xx.sh
set -x
al $@
al $*
al "$*"
al "$@"
$ sh xx.sh * */*
+ al He said, '"Don'\''t' do 'this!"' anotherdir my dir xx.sh anotherdir/myfile my dir/my file
He
said,
"Don't
do
this!"
anotherdir
my
dir
xx.sh
anotherdir/myfile
m...
An algorithm for inflating/deflating (offsetting, buffering) polygons
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I thought I might briefly mention my own polygon clipping and offsetting library - Clipper.
While Clipper is primarily designed for polygon clipping operations, it does polygon offsetting too. The library is open source freeware written in Delphi, C++ and C#. It has a very unencumbered Bo...
Are “while(true)” loops so bad? [closed]
... something after the else block which would occur whether running has been set to false or not.
The break statement communicates the intent more clearly, and lets the rest of the block get on with what it needs to do without worrying about earlier conditions.
Note that this is exactly the same sor...