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Python argparse: default value or specified value
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286
import argparse
parser = argparse.ArgumentParser()
parser.add_argument('--example', nargs='?',...
Why does Ruby 1.9.2 remove “.” from LOAD_PATH, and what's the alternative?
The latest changesets to Ruby 1.9.2 no longer make the current directory . part of your LOAD_PATH . I have a non-trivial number of Rakefiles that assume that . is part of the LOAD_PATH , so this broke them (they reported "no such file to load" for all require statements that based off the proj...
Check empty string in Swift?
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244
There is now the built in ability to detect empty string with .isEmpty:
if emptyString.isEmpt...
Python loop that also accesses previous and next values
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102
This should do the trick.
foo = somevalue
previous = next_ = None
l = len(objects)
for index, o...
How to understand nil vs. empty vs. blank in Ruby
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answered May 20 '09 at 16:14
Corban BrookCorban Brook
20.7k44 gold badges2525 silver badges3434 bronze badges
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How do I get the day of the week with Foundation?
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216
NSDateFormatter *dateFormatter = [[[NSDateFormatter alloc] init] autorelease];
[dateFormatte...
Named string formatting in C#
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John SheehanJohn Sheehan
72.7k2727 gold badges153153 silver badges189189 bronze badges
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Query for documents where array size is greater than 1
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Update:
For mongodb versions 2.2+ more efficient way to do this described by @JohnnyHK in another answer.
1.Using $where
db.accommodations.find( { $where: "this.name.length > 1" } );
But...
Javascript executes more slowly than the native ope...
TypeError: method() takes 1 positional argument but 2 were given
...t;>> my_new_object.method("foo")
<__main__.MyNewClass object at 0x29045d0>
foo
Occasionally (but not often), you really don't care about the object that your method is bound to, and in that circumstance, you can decorate the method with the builtin staticmethod() function to say so:
c...
How do I convert a TimeSpan to a formatted string? [duplicate]
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answered May 8 '09 at 22:22
AndyAndy
27.6k55 gold badges7474 silver badges8484 bronze badges
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