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The order of keys in dictionaries
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You could use OrderedDict (requires Python 2.7) or higher.
Also, note that OrderedDict({'a': 1, 'b':2, 'c':3}) won't work since the dict you create with {...} has already forgotten the order of the elements. Instead, you want to use OrderedDict([('a', 1), ('b'...
Why doesn't Python have a sign function?
I can't understand why Python doesn't have a sign function. It has an abs builtin (which I consider sign 's sister), but no sign .
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nodejs get file name from absolute path?
... basename method is used:
var path = require("path");
var fileName = "C:\\Python27\\ArcGIS10.2\\python.exe";
var file = path.basename(fileName);
console.log(file); // 'python.exe'
If you want the file name without the extension, you can pass the extension variable (containing the extension name)...
Is it possible to forward-declare a function in Python?
Is it possible to forward-declare a function in Python? I want to sort a list using my own cmp function before it is declared.
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str performance in python
While profiling a piece of python code ( python 2.6 up to 3.2 ), I discovered that the
str method to convert an object (in my case an integer) to a string is almost an order of magnitude slower than using string formatting.
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How to append multiple values to a list in Python
I am trying to figure out how to append multiple values to a list in Python. I know there are few methods to do so, such as manually input the values, or put the append operation in a for loop, or the append and extend functions.
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live output from subprocess command
I'm using a python script as a driver for a hydrodynamics code. When it comes time to run the simulation, I use subprocess.Popen to run the code, collect the output from stdout and stderr into a subprocess.PIPE --- then I can print (and save to a log-file) the output information, and check for ...
How to view the SQL queries issued by JPA?
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You would put this line in your persistence.xml for any body that is currious. It would be under the <properties> node... Sorry if that is obvious, I was just confused about where to put it myself.
– SoftwareSavant
Apr 18 '...
How to urlencode a querystring in Python?
... urllib.urlencode(f)
'eventName=myEvent&eventDescription=cool+event'
Python 3 or above
Use:
>>> urllib.parse.urlencode(f)
eventName=myEvent&eventDescription=cool+event
Note that this does not do url encoding in the commonly used sense (look at the output). For that use urllib....
How do I install PyCrypto on Windows?
...nstalled that is compatible with the Visual Studio binaries distributed by Python.org, then you should stick to installing only pure Python packages or packages for which a Windows binary is available.
Fortunately, there are PyCrypto binaries available for Windows:
http://www.voidspace.org.uk/pytho...