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How to delete a file or folder?
...shutil.rmtree() deletes a directory and all its contents.
Path objects from the Python 3.4+ pathlib module also expose these instance methods:
pathlib.Path.unlink() removes a file or symbolic link.
pathlib.Path.rmdir() removes an empty directory.
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Encrypt Password in Configuration Files? [closed]
I have a program that reads server information from a configuration file and would like to encrypt the password in that configuration that can be read by my program and decrypted.
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rails - Devise - Handling - devise_error_messages
...::Error
It also appears to be defined in a higher scope (probably coming from the controller), so it can be accessed in a variety of places.
Anywhere in your Helper
module DeviseHelper
def devise_error_messages1!
resource.errors.full_messages.map { |msg| content_tag(:li, msg) }.join
end
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How do I use the lines of a file as arguments of a command?
...in the 'Command Substitution' section.
Alterately, have your command read from stdin, so: mycommand < file.txt
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DateTime to javascript date
From another answer on Stackoverflow is a conversion from Javascript date to .net DateTime:
10 Answers
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How to ISO 8601 format a Date with Timezone Offset in JavaScript?
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The sign indicates the offset of the local time from GMT
– Steven Moseley
Jul 2 '13 at 0:50
1
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How do you convert a time.struct_time object into a datetime object?
... time tuple (in localtime) into seconds since the Epoch, then use datetime.fromtimestamp() to get the datetime object.
from datetime import datetime
from time import mktime
dt = datetime.fromtimestamp(mktime(struct))
shar...
How to establish a connection pool in JDBC?
...d too much problems with DBCP under heavy load. Using C3P0 is dead simple. From the documentation:
ComboPooledDataSource cpds = new ComboPooledDataSource();
cpds.setDriverClass( "org.postgresql.Driver" ); //loads the jdbc driver
cpds.setJdbcUrl( "jdbc:postgresql://localhost/testdb" );
cpds.setUser(...
Sort a text file by line length including spaces
... " -f2-
In both cases, we have solved your stated problem by moving away from awk for your final cut.
Lines of matching length - what to do in the case of a tie:
The question did not specify whether or not further sorting was wanted for lines of matching length. I've assumed that this is unwant...
How to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar
... table view it will query and which applicable FRC to pull the information from. The FRC delegate methods must also figure out which tableView to update.
It is surprising how much of this is boilerplate code.
Relevant bits of the header file:
@interface BlahViewController : UITableViewController...