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Automatic creation date for Django model form objects?
...t do that (the database needs something to populate existing rows). Please select a fix: 1) Provide a one-off default now (will be set on all existing rows) 2) Quit, and let me add a default in models.py Select an option: 1 Please enter the default value now, as valid Python The datetime and djang...
google chrome extension :: console.log() from background page?
...arate console.
In order to view it - right click on the extension icon and select "Inspect popup".
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Generate 'n' unique random numbers within a range [duplicate]
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You could use the random.sample function from the standard library to select k elements from a population:
import random
random.sample(range(low, high), n)
In case of a rather large range of possible numbers, you could use itertools.islice with an infinite random generator:
import itertools...
How to print a groupby object
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for key, values in gb.iteritems():
print(df.ix[values], "\n\n")
For selective key grouping: Insert the keys you want inside the key_list_from_gb, in following, using gb.keys(): For Example,
gb = grouped_df.groups
gb.keys()
key_list_from_gb = [key1, key2, key3]
for key, values in gb.items()...
The definitive guide to form-based website authentication [closed]
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A cryptographic hash should not be used for password storage because user-selected passwords are not strong enough (i.e. do not usually contain enough entropy) and a password guessing attack could be completed in a relatively short time by an attacker with access to the hashes. This is why KDFs are...
How do I make a textarea an ACE editor?
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I have a trouble with this method: texting 'SELECT 1 OR 2;' on ace.editor will put 'SELECT 1OR&nbps;2;' to textarea. Can someone tell me what i'm doing wrong?
– alexglue
Apr 1 '14 at 7:08
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UINavigationController without navigation bar?
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In Xcode 4.3.2:
Select the navigation controller in the storyboard
Select the Attributes Inspector in the (right) Utilities panel
Under the Navigation Controller category you have two check boxes:
[] Shows Navigation Bar
[] Shows Toolbar
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How to check if a model has a certain column/attribute?
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For bonus points use Hash#select: number_hash.select { |key, value| Number.column_names.include? key }
– hgmnz
Nov 10 '09 at 18:31
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How to make PowerShell tab completion work like Bash
...rs expansions for almost any command, wmi, comobject, assembly with a easy selection way!
– CB.
Nov 25 '11 at 10:04
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Convert hex color value ( #ffffff ) to integer value
...t was to change the Button's text color (Button_C) when I change the color selection from my Preferences (color_prefs).
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