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Checking if a string can be converted to float in Python
...
Except that you forgot to name your function "will_it_float".
– unmounted
Apr 10 '09 at 1:07
3
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python: How do I know what type of exception occurred?
...pe {0} occurred. Arguments:\n{1!r}"
message = template.format(type(ex).__name__, ex.args)
print message
Make sure message is brought to the attention of the user in a hard-to-miss way! Printing it, as shown above, may not be enough if the message is buried in lots of other messages. Failin...
Web API 最佳入门指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...blic class ContactRepository : IContactRepository
{
MongoServer _server = null;
MongoDatabase _database = null;
MongoCollection _contacts = null;
public ContactRepository(string connection)
{
if (string.IsNullOrWhiteSpace(connection))
...
How to make an array of arrays in Java
...2DWeakRefsBuffered<T>
{
private final WeakReference<T>[][] _array;
private final Queue<T> _buffer;
private final int _width;
private final int _height;
private final int _bufferSize;
@SuppressWarnings( "unchecked" )
public Array2DWeakRefsBuffered( in...
How to serialize SqlAlchemy result to JSON?
...(json.JSONEncoder):
def default(self, obj):
if isinstance(obj.__class__, DeclarativeMeta):
# an SQLAlchemy class
fields = {}
for field in [x for x in dir(obj) if not x.startswith('_') and x != 'metadata']:
data = obj.__getattribute__(f...
Is there an expression for an infinite generator?
...te itertools.count: count = lambda start=0, step=1: (start + i*step for i, _ in enumerate(iter(int, 1)))
– Coffee_Table
Aug 13 '18 at 23:43
2
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Find which version of package is installed with pip
...hat is the difference between using pip list and doing import X and then X.__version__? Are both the package versions?
– variable
Oct 13 '19 at 4:27
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How can I get the current page's full URL on a Windows/IIS server?
...
Maybe, because you are under IIS,
$_SERVER['PATH_INFO']
is what you want, based on the URLs you used to explain.
For Apache, you'd use $_SERVER['REQUEST_URI'].
share
|
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How to do relative imports in Python?
...answering the question.
The problem is that you're running the module as '__main__' by passing the mod1.py as an argument to the interpreter.
From PEP 328:
Relative imports use a module's __name__ attribute to determine that module's position in the package hierarchy. If the module's name does...
How to access outer class from an inner class?
...f):
return Outer.Inner(self)
class Inner(object):
def __init__(self, outer_instance):
self.outer_instance = outer_instance
self.outer_instance.somemethod()
def inner_method(self):
self.outer_instance.anothermethod()
...