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What does 'wb' mean in this code, using Python?
... Concretely, in Windows for a file opened in text mode, fd.write("foo\n") actually writes on disk foo\r\n (note the \r).
– Serge Ballesta
Aug 21 '14 at 5:48
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Step-by-step debugging with IPython
... ipdb command takes precedence over python code. So in order to write list(foo) you'd need print list(foo).
Also, if you like the ipython prompt (its emacs and vim modes, history, completions,…) it's easy to get the same for your project since it's based on the python prompt toolkit.
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Can you use an alias in the WHERE clause in mysql?
.... sum(reviews.rev_rating)/count(reviews.rev_id) as avg_rating
from ...) Foo
where Foo.avg_rating ...
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What does 'synchronized' mean?
... that are reading and writing to the same 'resource', say a variable named foo, you need to ensure that these threads access the variable in an atomic way. Without the synchronized keyword, your thread 1 may not see the change thread 2 made to foo, or worse, it may only be half changed. This would...
Javascript Functions and default parameters, not working in IE and Chrome
...ds on your situation. If you know the argument won't be falsey, you can do foo = foo || "the default". Or you can check the .length of the arguments object. Or you can simply test each parameter for undefined. There are different occasions to use each.
– the system
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Pass parameter to fabric task
...s to tasks:
fab task:'hello world'
fab task:something='hello'
fab task:foo=99,bar=True
fab task:foo,bar
You can read more about it in Fabric docs.
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Ways to save enums in database
...t to declare the same information in two places? Both in CODE public enum foo {bar} and CREATE TABLE foo (name varchar); that can easily get out of sync.
– ebyrob
Nov 11 '16 at 16:17
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How to validate an email address in JavaScript
...actically anything, including an @, is valid in the name_part; The address foo@bar@machine.subdomain.example.museum is legal, although it must be escaped as foo\@bar@machine..... Once the email reaches the domain e.g. 'example.com' that domain can route the mail "locally" so "strange" usernames and ...
What's the best way to parse command line arguments? [closed]
...rg 3 --switch
Argument values:
1
2
3
True
Incorrect arguments:
$ ./app foo 2 --opt_arg 3 --switch
usage: convert [-h] [--opt_arg OPT_ARG] [--switch] pos_arg [opt_pos_arg]
app: error: argument pos_arg: invalid int value: 'foo'
$ ./app 11 2 --opt_arg 3
Argument values:
11
2
3
False
usage: app [-h...
How to remove the arrow from a select element in Firefox
...;
height: 15px;
}
<select class='select'>
<option value='foo'>bar</option>
</select>
this is so you can still click on it
Then make div with the same dimensions as the select box. The div should lay under the select box as the background. Use { position: absol...