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Optional Parameters with C++ Macros
...ello, World!", 18, bold);
return 0;
}
This makes it easier for the caller of the macro, but not the writer.
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How do I get the path and name of the file that is currently executing?
I have scripts calling other script files but I need to get the filepath of the file that is currently running within the process.
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How to save all the variables in the current python session?
I want to save all the variables in my current python environment. It seems one option is to use the 'pickle' module. However, I don't want to do this for 2 reasons:
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Why is “if not someobj:” better than “if someobj == None:” in Python?
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Otherwise, if the object has a __len__ special method (as do container built-ins, li...
Inheritance and Overriding __init__ in python
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The book is a bit dated with respect to subclass-superclass calling. It's also a little dated with respect to subclassing built-in classes.
It looks like this nowadays:
class FileInfo(dict):
"""store file metadata"""
def __init__(self, filename=None):
super(FileInfo,...
Why is the order in dictionaries and sets arbitrary?
...der:
>>> {'bar': None, 'foo': None}
{'foo': None, 'bar': None}
All slots except 3 and 4 are empty, looping over the table first lists slot 3, then slot 4, so 'foo' is listed before 'bar'.
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Define a lambda expression that raises an Exception
...ur goal is to avoid a def, this obviously doesn't cut it. It does, however allow you to conditionally raise exceptions, e.g.:
y = lambda x: 2*x if x < 10 else raise_(Exception('foobar'))
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Check if $_POST exists
...sts and if it does, print it inside another string, if not, don't print at all.
14 Answers
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How to automatically generate a stacktrace when my program crashes
... the GCC compiler. When my C++ program crashes I would like it to automatically generate a stacktrace.
28 Answers
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