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Why doesn't list have safe “get” method like dictionary?
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Python doesn't allow monkeypatching builtin types like list
– Imran
Feb 26 '11 at 7:32
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Is there a built in function for string natural sort?
Using Python 3.x, I have a list of strings for which I would like to perform a natural alphabetical sort.
18 Answers
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How to send a header using a HTTP request through a curl call?
.../json" -H "Content-Type: application/json" http://hostname/resource
with XML:
curl -H "Accept: application/xml" -H "Content-Type: application/xml" -X GET http://hostname/resource
POST:
For posting data:
curl --data "param1=value1&param2=value2" http://hostname/resource
For file upload:
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Python creating a dictionary of lists
...r and more modern choice. setdefault is still useful in older versions of Python (prior to 2.5).
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TypeError: method() takes 1 positional argument but 2 were given
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In Python, this:
my_object.method("foo")
...is syntactic sugar, which the interpreter translates behind the scenes into:
MyClass.method(my_object, "foo")
...which, as you can see, does indeed have two arguments - it's just...
Build and Version Numbering for Java Projects (ant, cvs, hudson)
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Your build.xml
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<property name="version" value="1.0"/>
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<target name="jar" depends="compile">
<buildnumber file="build.num"/>
<manifest file="MANIFEST.MF">
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<attribute name="M...
Show the progress of a Python multiprocessing pool imap_unordered call?
... @HananShteingart: It works fine on my system (Ubuntu) with both Python 2 and 3. I've used def do_word(*a): time.sleep(.1) as an example. If it doesn't work for you then create a complete minimal code example which demonstrates your issue: describe using words what do you expect to happen ...
Getting the exception value in Python
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For python2, It's better to use e.message to get the exception message, this will avoid possible UnicodeDecodeError. But yes e.message will be empty for some kind of exceptions like OSError, in which case we can add a exc_info=Tr...
PATH issue with pytest 'ImportError: No module named YadaYadaYada'
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Yes, the source folder is not in Python's path if you cd to the tests directory.
You have 2 choices:
Add the path manually to the test files, something like this:
import sys, os
myPath = os.path.dirname(os.path.abspath(__file__))
sys.path.insert(0, myPa...
Very large matrices using Python and NumPy
...oing SQL-like GROUP BY aggregation at 1,000,000 rows/second. Not bad for a Python-based solution!
Accessing the data as a NumPy recarray again is as simple as:
data = table[row_from:row_to]
The HDF library takes care of reading in the relevant chunks of data and converting to NumPy.
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