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How can I explicitly free memory in Python?
...'m using python 3.6. Calling gc.collect() after loading a pandas dataframe from hdf5 (500k rows) reduced memory usage from 1.7GB to 500MB
– John
Jan 18 '18 at 20:30
...
How to run two jQuery animations simultaneously?
...'ve used it like this to slide in/out:
slide : function(id, prop, from, to) {
if (from < to) {
// Sliding out
var fromvals = { add: from, subtract: 0 };
var tovals = { add: to, subtract: 0 };
} else {
...
Subtract 7 days from current date
It seems that I can't subtract 7 days from the current date. This is how i am doing it:
11 Answers
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How can I do a line break (line continuation) in Python?
...== True and \
b == False
Check the style guide for more information.
From your example line:
a = '1' + '2' + '3' + \
'4' + '5'
Or:
a = ('1' + '2' + '3' +
'4' + '5')
Note that the style guide says that using the implicit continuation with parentheses is preferred, but in this part...
How to make a chain of function decorators?
...the documentation to see how decorators work. Here is what you asked for:
from functools import wraps
def makebold(fn):
@wraps(fn)
def wrapped(*args, **kwargs):
return "<b>" + fn(*args, **kwargs) + "</b>"
return wrapped
def makeitalic(fn):
@wraps(fn)
def wr...
Backbone.js: get current route
...wing line returns the current fragment:
Backbone.history.getFragment();
From the Backbone.js documentation:
"
[...]
History serves as a global router (per frame) to handle hashchange events or pushState, match the appropriate route, and trigger callbacks. You shouldn't ever have to create one of...
launch sms application with an intent
...
in fact, the launch come from an appwidgetactivity. Perh'aps it coms from here, I put what you've done in the manifest and nothing happen... I have test my button with an other function et this one don't want to go!!
– Olivier69...
How to decide when to use Node.js?
...ited for applications where you'd like to maintain a persistent connection from the browser back to the server. Using a technique known as "long-polling", you can write an application that sends updates to the user in real time. Doing long polling on many of the web's giants, like Ruby on Rails or D...
AngularJS: How can I pass variables between controllers?
... and I was very frustrated. So let me help you avoid this trouble.
I read from the "ng-book: The complete book on AngularJS" that AngularJS ng-models that are created in controllers as bare-data are WRONG!
A $scope element should be created like this:
angular.module('myApp', [])
.controller('Some...
How to read a text file into a list or an array with Python
...o add that, the above problem notwistanding, this procedure collapses data from individual rows in a single mega-list, usually not what I want when processing a record-oriented data file.
– gboffi
Jan 24 '17 at 18:52
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