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How do I list the symbols in a .so file
...
The standard tool for listing symbols is nm, you can use it simply like this:
nm -gD yourLib.so
If you want to see symbols of a C++ library, add the "-C" option which demangle the symbols (it's far more readable demangled).
nm -gDC yourLib...
Getting a list of all subdirectories in the current directory
...you could use os.walk to do this:
os.walk(directory)
will yield a tuple for each subdirectory. Ths first entry in the 3-tuple is a directory name, so
[x[0] for x in os.walk(directory)]
should give you all of the subdirectories, recursively.
Note that the second entry in the tuple is the list ...
Logging uncaught exceptions in Python
...rt sys
>>> def foo(exctype, value, tb):
... print 'My Error Information'
... print 'Type:', exctype
... print 'Value:', value
... print 'Traceback:', tb
...
Override sys.excepthook:
>>> sys.excepthook = foo
Commit obvious syntax error (leave out the colon) and ge...
Adding information to an exception?
... foo
raise IOError('Stuff')
IOError: Stuff happens at arg1
Update 2
For Python 3.x, the code in my first update is syntactically incorrect plus the idea of having a message attribute on BaseException was retracted in a change to PEP 352 on 2012-05-16 (my first update was posted on 2012-03-12)...
How to load all modules in a folder?
... = glob.glob(join(dirname(__file__), "*.py"))
__all__ = [ basename(f)[:-3] for f in modules if isfile(f) and not f.endswith('__init__.py')]
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Defining private module functions in python
... "privacy" depends on "consenting adults'" levels of agreement - you can't force it (any more than you can in real life;-). A single leading underscore means you're not supposed to access it "from the outside" -- two leading underscores (w/o trailing underscores) carry the message even more forcefu...
How to spread django unit tests over multiple files?
...s, and run that suite.
There is a second way to define the test suite for a module: if you
define a function called suite() in either models.py or tests.py, the
Django test runner will use that function to construct the test suite
for that module. This follows the suggested organization f...
Passing parameters to JavaScript files
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old but for those googling: this is great if you need to work around a CSP (content security policy). We use a lot of scripts wherein we pass strings determined from language resources and API keys etc. into JS files.
...
Python Unicode Encode Error
... trying to print the contents of the XML and you can't because theres some foreign Unicode characters. Try to encode your unicode string as ascii first:
unicodeData.encode('ascii', 'ignore')
the 'ignore' part will tell it to just skip those characters. From the python docs:
>>> u = un...
How does __proto__ differ from constructor.prototype?
...ays basicly the same:
Javascript object layout
The most surprising thing for me was discovering that Object.__proto__ points to Function.prototype, instead of Object.prototype, but I'm sure there's a good reason for that :-)
I paste the code mentioned in the image here as well for if anyone wants...