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Hashing a file in Python
...d5.hexdigest()))
print("SHA1: {0}".format(sha1.hexdigest()))
What we've done is we're updating our hashes of this bad boy in 64kb chunks as we go along with hashlib's handy dandy update method. This way we use a lot less memory than the 2gb it would take to hash the guy all at once!
You can test ...
Sorting multiple keys with Unix sort
....14,1.15n
Would use character positions 4-5 in the first field (it's all one field for fixed width) and sort numerically as the first key.
The second key would be characters 14-15 in the first field also.
(edit)
Example (all I have is DOS/cygwin handy):
dir | \cygwin\bin\sort.exe -k 1.4,1.5n -...
How can I list all commits that changed a specific file?
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Whats the difference between that one and just git log filename?
– VaTo
Jun 17 '15 at 17:45
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How can I get the count of milliseconds since midnight for the current?
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and if somebody defines a timezone not on second border or adds a leap-millisecond this breaks.=))
– Markus Mikkolainen
Aug 2 '12 at 20:40
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When is a language considered a scripting language? [closed]
...about languages like Python? It's not easy to tell where the focus is, but one could say it's focusing more on own applications, still it's often called a "scripting language". Maybe because the hidden compilation into bytecode of the reference CPython impl. doesn't raise compilation errors regardin...
Why does Python code use len() function instead of a length method?
....__len__ than to force people to implement .len(). Its the same thing, and one looks much cleaner. If the language is going to have an OOP __len__, what in the world is the point of making len(..)
– alternative
Nov 7 '11 at 21:13
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Manually raising (throwing) an exception in Python
...ktrace (and error value) with sys.exc_info(), but this is way more error prone and has compatibility problems between Python 2 and 3, prefer to use a bare raise to re-raise.
To explain - the sys.exc_info() returns the type, value, and traceback.
type, value, traceback = sys.exc_info()
This is ...
Best way to simulate “group by” from bash?
Suppose you have a file that contains IP addresses, one address in each line:
14 Answers
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Localization and internationalization, what's the difference?
... (i18n)the process of changing your software so that it isn't hardwired to one language/locale/culture.
Localization (l10n)the process of adding the appropriate resources to your software so that a particular language/locale is supported. It's bigger in scope than just this Wikipedia entry, but it...
What's the difference between SCSS and Sass?
... in sass you always have to adjust the syntax
– fishbone
Nov 23 '16 at 6:49
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