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Python's json module, converts int dictionary keys to strings
...using json, and converting it back to dictionary after decoding it back.
>>>> import json
>>>> json.dumps(releases.items())
'[[1, "foo-v0.1"]]'
>>>> releases = {1: "foo-v0.1"}
>>>> releases == dict(json.loads(json.dumps(releases.items())))
Tr...
How to append one file to another in Linux from the shell?
...
Use bash builtin redirection (tldp):
cat file2 >> file1
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How can I capitalize the first letter of each word in a string?
... .title() method of a string (either ASCII or Unicode is fine) does this:
>>> "hello world".title()
'Hello World'
>>> u"hello world".title()
u'Hello World'
However, look out for strings with embedded apostrophes, as noted in the docs.
The algorithm uses a simple language-independ...
Python datetime to string without microsecond component
...t from the standard format, it's best to explicitly specify that format:
>>> datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")
'2011-11-03 18:21:26'
See the documentation of datetime.strftime() for an explanation of the % directives.
...
Is there a short contains function for lists?
...extremely handy to use python at his full extent.
A dumb use may be:
>>> class ContainsEverything:
def __init__(self):
return None
def __contains__(self, *elem, **k):
return True
>>> a = ContainsEverything()
>>> 3 in a
True
>>> a in ...
Find intersection of two nested lists?
...'t need to define intersection. It's already a first-class part of set.
>>> b1 = [1,2,3,4,5,9,11,15]
>>> b2 = [4,5,6,7,8]
>>> set(b1).intersection(b2)
set([4, 5])
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How to concatenate items in a list to a single string?
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Use join:
>>> sentence = ['this','is','a','sentence']
>>> '-'.join(sentence)
'this-is-a-sentence'
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Is there a way to “limit” the result with ELOQUENT ORM of Laravel?
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Create a Game model which extends Eloquent and use this:
Game::take(30)->skip(30)->get();
take() here will get 30 records and skip() here will offset to 30 records.
In recent Laravel versions you can also use:
Game::limit(30)->offset(30)->get();
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Checking if a variable is defined?
...return a String with the kind of the item, or nil if it doesn’t exist.
>> a = 1
=> 1
>> defined? a
=> "local-variable"
>> defined? b
=> nil
>> defined? nil
=> "nil"
>> defined? String
=> "constant"
>> defined? 1
=> "expression"
As skal...
Programmatically obtain the Android API level of a device?
... the current device's API level is at least 4)
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.DONUT) {
}
To obtain user visible Android Version use:
Build.VERSION.RELEASE
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