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Why does Python pep-8 strongly recommend spaces over tabs for indentation?
...is for fools who enjoy getting tripped up on those 1 space off indentation errors. If your indentation was off by 1 tab, I guarantee you'd notice it.
– Sepero
Jun 6 '13 at 10:37
12...
JdbcTemplate queryForInt/Long is deprecated in Spring 3.2.2. What should it be replaced by?
...ception. The compiler didn't warn You about this. You will know about this error at runtime. The same error You will have if You have method that return primitive type:
public long getValue(String sql) {
return = jdbcTemplate.queryForObject(sql, Long.class);
}
The deprecated method queryForLo...
Actual meaning of 'shell=True' in subprocess
...gt; subprocess.call('echo $HOME')
Traceback (most recent call last):
...
OSError: [Errno 2] No such file or directory
>>>
>>> subprocess.call('echo $HOME', shell=True)
/user/khong
0
Setting the shell argument to a true value causes subprocess to spawn an intermediate shell pro...
Correct idiom for managing multiple chained resources in try-with-resources block?
...sort of obscure knowledge.
Also there's the "destruction". If there is an error condition, then you probably don't want to be flushing rubbish to a file that needs deleting (code for that not shown). Although, of course, deleting the file is also another interesting operation to do as error handlin...
How to unpack and pack pkg file?
...
I get an error running cat Payload | gunzip -dc |cpio -i: gunzip: unknown compression format;0 blocks. I'm trying to open BSD.pkg from OS X Yosemite installation package.
– shrx
Oct 29 '14 at 10:...
Can you set a border opacity in CSS?
... { border: 1px solid rgba(255, 0, 0, .5); }
The results were,
Value Error : border Too many values or values are not recognized :
1px solid rgba(255,0,0,0.5 )
Unfortunate that the alpha value (the letter "a" at the end of "rgb") is not accepted by W3C as part of the border color values as...
How to pretty-print a numpy.array without scientific notation and with given precision?
...) and len(arg) == 0):
tf[ 2*j + 1 ] = "%s" # %f -> %s, not error
continue
args[j], isarray = _tonumpyarray(arg)
if isarray and fmt[-1] in "defgEFG":
tf[ 2*j + 1 ] = "%s"
fmtfunc = (lambda x: fmt % x)
formatter = dict( f...
Show pop-ups the most elegant way
...t). Now we click send or buy or whatever from that popup, and there is an error whereby the user needs to amend that order in the previous screen. I want to display that error in another popup at the top level. This approach doesn't facilitate this I don't believe.
– jusop...
How can I upload files asynchronously?
...console.log("Success: Files sent!");
}).fail(function(){
console.log("An error occurred, the files couldn't be sent!");
});
For a quick, pure JavaScript (no jQuery) example see "Sending files using a FormData object".
Fallback
When HTML5 isn't supported (no File API) the only other pure JavaSc...
How to execute PHP code from the command line?
...
php -r "echo 1"
-- correct
php -r 'echo 1'
-- incorrect
PHP Parse error: syntax error, unexpected ''echo' (T_ENCAPSED_AND_WHITESPACE), expecting end of file in Command line code on line 1
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