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Get Image size WITHOUT loading image into memory
...ndler(self, i)
if i == 0xFFDA: # start of scan
rawmode = self.mode
if self.mode == "CMYK":
rawmode = "CMYK;I" # assume adobe conventions
self.tile = [("jpeg", (0,0) + self.size, 0, (rawmode, ""))]
# self....
How to use XPath in Python?
...e ( which is included in Python 2.5 ). If you need full spec compliance or raw speed and can cope with the distribution of native code, go with libxml2.
Sample of libxml2 XPath Use
import libxml2
doc = libxml2.parseFile("tst.xml")
ctxt = doc.xpathNewContext()
res = ctxt.xpathEval("//*")
if len(...
Are Exceptions in C++ really slow
...nter) to the a list of handlers. When an exception is thrown, this list is consulted to pick the right handler (if any) and stack is unwound.
Compared to the typical if (error) strategy:
the Zero-Cost model, as the name implies, is free when no exceptions occur
it costs around 10x/20x an if when ...
“implements Runnable” vs “extends Thread” in Java
...call threadA.run().
Caveat: Around here, I strongly discourage the use of raw Threads. I much prefer the use of Callables and FutureTasks (From the javadoc: "A cancellable asynchronous computation"). The integration of timeouts, proper cancelling and the thread pooling of the modern concurrency s...
Python module for converting PDF to text [closed]
... from packtpub). Every other piece of code just return the weirdly encoded raw stuff but yours actually returns text. Thanks!
– somada141
Jan 30 '16 at 1:42
...
sqlite database default time value 'now'
...lect * From Demo; -- display raw audit values
idDemo DemoValue DatTimIns DatTimUpd
------ --------- ---------- ----------
1 One Upd 1560024902 1560024944
2 Two 1560024944
3 Thr 1560024944
Select * From vewDemo;...
How to get a complete list of ticker symbols from Yahoo Finance? [closed]
...
Nice one. The raw YQL: select * from yahoo.finance.industry where id in (select industry.id from yahoo.finance.sectors)
– David Gilbertson
Apr 2 '14 at 4:49
...
Rails where condition using NOT NIL
...
This is a good way to avoid writing raw sql fragments. The syntax isn't as concise as Squeel though.
– Kelvin
May 16 '12 at 16:14
1
...
Good ways to manage a changelog using git?
...I think you can automate the generation of a changelog but please don't do raw copy of git log !
– vaab
Mar 11 '15 at 3:44
20
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unobtrusive validation not working with dynamic content
...:
var form = $(formSelector)
.removeData("validator") /* added by the raw jquery.validate plugin */
.removeData("unobtrusiveValidation"); /* added by the jquery unobtrusive plugin*/
$.validator.unobtrusive.parse(form);
Access the form's unobtrusiveValidation data using the jquery data me...