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Ruby equivalent of virtualenv?
...s of your app's gem dependencies. The tool for that is bundler.
use a Gemfile as your application's dependency declaration
use bundle install to install explicit versions of these dependencies into an isolated location
use bundle exec to run your application
...
How can I selectively escape percent (%) in Python strings?
... Just noticed that If the string is a json string, being read from a file you don't even need to escape the % sign. Just % will do
– wander95
Dec 19 '17 at 16:24
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How to check if mod_rewrite is enabled in php?
...SetEnv HTTP_MOD_REWRITE On
RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
# The rest of your rewrite rules here
</IfModule>
Then, you can check in your PHP code for
array_key_exists('HTTP_MOD_REWRITE', $_SERVER);
No idea if t...
How can I update my ADT in Eclipse?
...
I had the same problem where there's no files under Generated Java files, BuildConfig and R.java were missing. The automatic build option is not generating.
In Eclipse under Project, uncheck Build Automatically. Then under Project select Build Project. You may need...
How connect Postgres to localhost server using pgAdmin on Ubuntu?
...
It helps me:
1. Open the file pg_hba.conf
sudo nano /etc/postgresql/9.x/main/pg_hba.conf
and change this line:
Database administrative login by Unix domain socket
local all postgres md5
to
Databa...
What causes javac to issue the “uses unchecked or unsafe operations” warning
...:unchecked"
}
}
// ...
}
in your project's build.gradle file to know where this error is produced.
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Building with Lombok's @Slf4j and Intellij: Cannot find symbol log
...n installed 1.14. I still had to enable annotation processing in IntelliJ. File->Settings->Build, Execution, Deployment->Compiler->Annotation Processors. IntelliJ is not really winning points with me.
– demaniak
Sep 10 '18 at 7:16
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Python: fastest way to create a list of n lists
...ore a list as a list of lists of different numbers - which it reads from a file. (The file here has the dataset train)
Train is a data-set with say 50 rows and 20 columns. ie. Train[0] gives me the 1st row of a csv file, train[1] gives me the 2nd row and so on. I am interested in separating the data...
Can't find the PostgreSQL client library (libpq)
... who used MacPorts) but it wasn't working for me because I used the single file install.
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MySQL error 2006: mysql server has gone away
I'm running a server at my office to process some files and report the results to a remote MySQL server.
28 Answers
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