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In Python, what is the difference between “.append()” and “+= []”?
...bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import timeit
>>> timeit.Timer('s.append("something")', 's = []').timeit()
0.20177424499999999
>>> timeit.Timer('s += ["something"]', 's = []').timeit()
0.41192320500000079
Py...
How to convert DOS/Windows newline (CRLF) to Unix newline (LF) in a Bash script?
... # Unix to DOS
However, if you're going to have to do this very often (more than once, roughly speaking), it is far more sensible to install the conversion programs (e.g. dos2unix and unix2dos, or perhaps dtou and utod) and use them.
If you need to process entire directories and subdirectories,...
Disable same origin policy in Chrome
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Is there a REAL performance difference between INT and VARCHAR primary keys?
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How to read data when some numbers contain commas as thousand separator?
...ead.csv() decide and then converting those that in cols 15:41 may get you 'more' numeric columns.
– Dirk Eddelbuettel
Oct 6 '09 at 11:40
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Are the shift operators () arithmetic or logical in C?
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Cookies vs. sessions
...p, I heard that for the particular case of storing user's ID, sessions are more appropriate. So I started thinking about what would I say if the jury asks me why have you used cookies instead of sessions? I have just that reason (that I do not need to store internally information about the user). Is...
Java naming convention for static final variables [duplicate]
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That's still a constant. See the JLS for more information regarding the naming convention for constants. But in reality, it's all a matter of preference.
The names of constants in interface types should be, and final
variables of class types may conventional...
Which exception should I raise on bad/illegal argument combinations in Python?
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I would just raise ValueError, unless you need a more specific exception..
def import_to_orm(name, save=False, recurse=False):
if recurse and not save:
raise ValueError("save must be True if recurse is True")
There's really no point in doing class BadValueErr...
How to solve Permission denied (publickey) error when using Git?
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This answer is helpful but this seems more complete and just as easy if you are generating keys from scratch: help.github.com/articles/generating-ssh-keys
– whitneyland
Sep 12 '14 at 15:55
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