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How do I execute a string containing Python code in Python?
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A common case where someone wants to use 'exec' is something like if s=='foo': x.foo = 42 elif s=='bar': x.bar = 42 etc, which they may then write as exec ("x.%s = 42" % s). For this common case (where you only need to access a...
Namespace + functions versus static methods on a class
...g your functions in a namespace, you will authorize your users to increase/complete the class' interface.
Extension II
A side-effect of the previous point, it is impossible to declare static methods in multiple headers. Every method must be declared in the same class.
For namespaces, functions fr...
Why use strict and warnings?
... typos in variable names. Even experienced programmers make such errors. A common case is forgetting to rename an instance of a variable when cleaning up or refactoring code.
Using use strict; use warnings; catches many errors sooner than they would be caught otherwise, which makes it easier to fin...
What is the best project structure for a Python application? [closed]
...because Python projects can be simple.
/scripts or /bin for that kind of command-line interface stuff
/tests for your tests
/lib for your C-language libraries
/doc for most documentation
/apidoc for the Epydoc-generated API docs.
And the top-level directory can contain README's, Config's and wha...
Should I use @EJB or @Inject
... edited May 23 '17 at 12:10
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answered Nov 15 '11 at 15:08
Piotr NowickiPiotr ...
Placeholder in UITextView
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community wiki
14 revs, 9 users 37%Jason George
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What to learn for making Java web applications in Java EE 6? [closed]
...r guidance (and you won't find a non outdated unique resource covering all combinations), this must sound very confusing for a beginner.
So, because I think that Java EE 6 is a big improvement over previous versions of Java EE, because it provides really nice standard APIs for all your needs (Serv...
Best way to replace multiple characters in a string?
... text = text.replace(ch,"\\"+ch)
import re
def c(text):
rx = re.compile('([&#])')
text = rx.sub(r'\\\1', text)
RX = re.compile('([&#])')
def d(text):
text = RX.sub(r'\\\1', text)
def mk_esc(esc_chars):
return lambda s: ''.join(['\\' + c if c in esc_chars else c for...
Can “git pull --all” update all my local branches?
...ibed steps into a script/alias if you like, though I'd suggest joining the commands with && so that should one of them fail, it won't try to plow on.
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Are there any downsides to passing structs by value in C, rather than passing a pointer?
...ny will do it, but it's not anything that the C standard calls for. A sane compiler will optimize it all out.
– Unslander Monica
Feb 1 '15 at 18:05
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