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SHA1 vs md5 vs SHA256: which to use for a PHP login?
...in, and I'm trying to decide whether to use SHA1 or Md5, or SHA256 which I read about in another stackoverflow article. Are any of them more secure than others? For SHA1/256, do I still use a salt?
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How do I look inside a Python object?
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First, read the source.
Second, use the dir() function.
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Fast way of finding lines in one file that are not in another?
...ne in a line-content indexed associative array ss2[]. After both files are read, iterate over ll1 and use the in operator to determine if the line in file1 is present in file2. (This will have have different output to the diff method if there are duplicates.)
In the event that the files are suffici...
Bootstrapping still requires outside support
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The explanation you've read is correct. There's a discussion of this in Compilers: Principles, Techniques, and Tools (the Dragon Book):
Write a compiler C1 for language X in language Y
Use the compiler C1 to write compiler C2 for language X in la...
IEnumerable vs List - What to Use? How do they work?
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When I've read the answers about: IEnumerable<T> vs IQueryable<T> I saw the analogical explanation, so that IEnumerable automatically forces the runtime to use LINQ to Objects to query the collection. So I'm confused betwee...
u'\ufeff' in Python string
...automatically handle the encoding.
Without it, the BOM is included in the read result:
>>> f = open('file', mode='r')
>>> f.read()
'\ufefftest'
Giving the correct encoding, the BOM is omitted in the result:
>>> f = open('file', mode='r', encoding='utf-8-sig')
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Saving an Object (Data persistence)
...oundError:
import pickle
Data stream formats (protocols)
pickle can read and write files in several different, Python-specific, formats, called protocols as described in the documentation, "Protocol version 0" is ASCII and therefore "human-readable". Versions > 0 are binary and the highest...
Check string for palindrome
...lindrome is a word, phrase, number or other sequence of units that can be read the same way in either direction.
39 Answer...
What is HTML5 ARIA?
...he semantics of the various elements to assistive technologies like screen readers. Of course, for ARIA to work, the HTTP user agent that interprets the markup needs to support ARIA, but the spec is created in such a way, as to allow down-level user agents to ignore the ARIA-specific markup safely w...
Is there a way to escape a CDATA end token in xml?
...nt BUT the sequence ']]>'. No exception.".
EDIT2: The same section also reads:
Within a CDATA section, only the CDEnd string is recognized as markup, so that left angle brackets and ampersands may occur in their literal form; they need not (and cannot) be escaped using "&lt;" and "&amp;"...