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How can I start PostgreSQL server on Mac OS X?
...al/var/postgres stop
Start automatically
"To have launchd start postgresql now and restart at login:"
brew services start postgresql
What is the result of pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start?
What is the result of pg_ctl -D /usr/local/var/postgres status?
A...
Setting EditText imeOptions to actionNext has no effect
...Line="true" />
I'm not a fan of using a deprecated attribute, but for now it seems to get the desired result.
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In Scala how do I remove duplicates from a list?
...
scala.collection.immutable.List now has a .distinct method.
So calling dirty.distinct is now possible without converting to a Set or Seq.
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Why is “except: pass” a bad programming practice?
... catch any error
When using a try block, you usually do this because you know that there is a chance of an exception being thrown. As such, you also already have an approximate idea of what can break and what exception can be thrown. In such cases, you catch an exception because you can positively ...
What is the difference between save and insert in Mongo DB?
...e save will do -> It will do normal insertion
upsert to insert.Now in this case as insert() do.
what that means, it means
take the document and replace
the complete document having same
_id.
Let us consider the two cases here for insert:-
1) Having _id of...
SQLite with encryption/password protection
...not used in the normal distribution, but here are a few implementations I know of:
SEE - The official implementation.
wxSQLite - A wxWidgets style C++ wrapper that also implements SQLite's encryption.
SQLCipher - Uses openSSL's libcrypto to implement.
SQLiteCrypt - Custom implementation, modified ...
SVN: Ignore some directories recursively
...
As of subversion 1.8, there is now the svn:global-ignores property which works like svn:ignore but recursively (so set this on your top-level directory)
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android View not attached to window manager
... thread which survives the activity restart and may hold references to the now dead Activity and its Views (this is a effectively a memory leak, albeit probably a short term one - depends how long the task takes to complete). The solution above works fine, if you're happy to accept a short term mem...
How to return dictionary keys as a list in Python?
... generalizations (PEP 448) were introduced with Python 3.5 allowing you to now easily do:
>>> newdict = {1:0, 2:0, 3:0}
>>> [*newdict]
[1, 2, 3]
Unpacking with * works with any object that is iterable and, since dictionaries return their keys when iterated through, you can easil...
docker mounting volumes on host
...the following:
docker run --volumes-from some-volume docker-image-name:tag
Now you have a docker container running that will have the volume from some-volume mounted in /var/lib/mysql
Note: Using --volumes-from will mount the volume over whatever exists in the location of the volume. I.e., if you ...