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How do I get the path of the Python script I am running in? [duplicate]
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Make a chdir before calling realpath and real path will fail, this is not the answer.
– sorin
Nov 22 '11 at 11:27
7
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Possibility of duplicate Mongo ObjectId's being generated in two different collections?
Is it possible for the same exact Mongo ObjectId to be generated for a document in two different collections? I realize that it's definitely very unlikely, but is it possible?
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Programmatically Request Access to Contacts
...s a permission related problem, since Apple now requires user permission before accessing contacts (fixing this issue).
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Python time measure function
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First and foremost, I highly suggest using a profiler or atleast use timeit.
However if you wanted to write your own timing method strictly to learn, here is somewhere to get started using a decorator.
Python 2:
def timing(f):
def ...
How to trigger event when a variable's value is changed?
...an asynchronous process so technically the if statement could be ignored before the value has changed.
6 Answers
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How to get Linux console window width in Python
...date whereas I believe the os.environ["COLUMNS"] value would only be valid for the time of the launch of the python interpreter (suppose the user resized the window since then).
(See answer by @GringoSuave on how to do this on python 3.3+)
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What does $_ mean in PowerShell?
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This is the variable for the current value in the pipe line, which is called $PSItem in Powershell 3 and newer.
1,2,3 | %{ write-host $_ }
or
1,2,3 | %{ write-host $PSItem }
For example in the above code the %{} block is called for ever...
Call a python function from jinja2
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For those using Flask, put this in your __init__.py:
def clever_function():
return u'HELLO'
app.jinja_env.globals.update(clever_function=clever_function)
and in your template call it with {{ clever_function() }}
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Creating JS object with Object.create(null)?
...y run into a case where there are keys in the map that you never inserted. For example, if you did a lookup on toString, you would find a function, even though you never put that value there. You can work around that like this:
if (Object.prototype.hasOwnProperty.call(p, 'toString')) {
// we act...
Scala 2.8 breakOut
...t breakOut
So, what's the purpose of breakOut? Consider the example given for the question, You take a list of strings, transform each string into a tuple (Int, String), and then produce a Map out of it. The most obvious way to do that would produce an intermediary List[(Int, String)] collection, a...