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python Programming Glossary: rangePython List Comprehension Vs. Map http://stackoverflow.com/questions/1247486/python-list-comprehension-vs-map when using exactly the same function python mtimeit s'xs range 10 ' 'map hex xs ' 100000 loops best of 3 4.86 usec per loop.. loops best of 3 4.86 usec per loop python mtimeit s'xs range 10 ' ' hex x for x in xs ' 100000 loops best of 3 5.58 usec.. reversed when map needs a lambda python mtimeit s'xs range 10 ' 'map lambda x x 2 xs ' 100000 loops best of 3 4.24 usec..
Fastest way to list all primes below N in python http://stackoverflow.com/questions/2068372/fastest-way-to-list-all-primes-below-n-in-python of Project Euler's questions. def get_primes n numbers set range n 1 1 primes while numbers p numbers.pop primes.append p numbers.difference_update.. numbers.pop primes.append p numbers.difference_update set range p 2 n 1 p return primes timeit.Timer stmt 'get_primes.get_primes.. Returns a list of primes n sieve True n for i in xrange 3 int n 0.5 1 2 if sieve i sieve i i 2 i False n i i 1 2 i 1..
The Python yield keyword explained http://stackoverflow.com/questions/231767/the-python-yield-keyword-explained you create a list and so an iterable mylist x x for x in range 3 for i in mylist ... print i 0 1 4 Everything you can use for..... generate the values on the fly mygenerator x x for x in range 3 for i in mygenerator ... print i 0 1 4 It is just the same.. will return a generator. def createGenerator ... mylist range 3 ... for i in mylist ... yield i i ... mygenerator createGenerator..
Short Description of Python Scoping Rules http://stackoverflow.com/questions/291978/short-description-of-python-scoping-rules . Names preassigned in the built in names module open range SyntaxError ... So in the case of code1 class Foo code2 def..
Python “is” operator behaves unexpectedly with integers http://stackoverflow.com/questions/306313/python-is-operator-behaves-unexpectedly-with-integers integers between 5 and 256 when you create an int in that range you actually just get back a reference to the existing object...
How do you split a list into evenly sized chunks in Python? http://stackoverflow.com/questions/312443/how-do-you-split-a-list-into-evenly-sized-chunks-in-python of any length e.g. using generators. This should work l range 1 1000 print chunks l 10 1..10 11..20 .. 991..999 I was looking.. l n Yield successive n sized chunks from l. for i in xrange 0 len l n yield l i i n import pprint pprint.pprint list chunks.. l n yield l i i n import pprint pprint.pprint list chunks range 10 75 10 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26..
How can I represent an 'Enum' in Python? http://stackoverflow.com/questions/36932/how-can-i-represent-an-enum-in-python this def enum sequential named enums dict zip sequential range len sequential named return type 'Enum' enums and used like.. way def enum sequential named enums dict zip sequential range len sequential named reverse dict value key for key value in..
How can you profile a Python script? http://stackoverflow.com/questions/582336/how-can-you-profile-a-python-script of '_lsprof.Profiler objects 1 0.000 0.000 0.000 0.000 range 1 0.003 0.003 0.003 0.003 sum EDIT There is a great talk on..
Python - Range values to pseudocolor http://stackoverflow.com/questions/10901085/python-range-values-to-pseudocolor Range values to pseudocolor I have a certain array of floats in Python..
Running OpenCV from a Python virtualenv http://stackoverflow.com/questions/11184847/running-opencv-from-a-python-virtualenv sdcpp from_ndarray_impl const sdcpp ndarray with T cv Range package extras core ndarray.cpp 604 1 instantiated from here..
MS Word r/w in python, Python-docx issue and win32com references? http://stackoverflow.com/questions/13509207/ms-word-r-w-in-python-python-docx-issue-and-win32com-references object doesn't have a Text property. Instead it has a Range property 'which refers to a Range object which does have a Text.. Instead it has a Range property 'which refers to a Range object which does have a Text property. wordDoc.Paragraphs 1.. which does have a Text property. wordDoc.Paragraphs 1 .Range.Text Hello World End Sub A similar snippet of code in Python..
http://stackoverflow.com/questions/1971240/python-seek-on-remote-file the remote file through HTTP you need to set the Range header. Check in this example how it can be done. Looks like.. how it can be done. Looks like this myUrlclass.addheader Range bytes s existSize EDIT I just found a better implementation.. to use as it can be seen in the docstring. class HTTPRangeHandler urllib2.BaseHandler Handler that enables HTTP Range headers...
Download file using urllib in Python with the wget -c feature http://stackoverflow.com/questions/2021519/download-file-using-urllib-in-python-with-the-wget-c-feature can request a partial download by sending a GET with the Range header import urllib2 req urllib2.Request 'http www.python.org.. # The range is inclusive and starts at 0. # req.headers 'Range' 'bytes s s' 18000 19000 f urllib2.urlopen req # This shows.. that have been downloaded. range f.headers.get 'Content Range' print range # bytes 18000 18030 18031 print repr f.read # '..
How do I calculate percentiles with python/numpy? http://stackoverflow.com/questions/2374640/how-do-i-calculate-percentiles-with-python-numpy
Set Colorbar Range in matplotlib http://stackoverflow.com/questions/3373256/set-colorbar-range-in-matplotlib Colorbar Range in matplotlib I have the following code import matplotlib.pyplot..
http://stackoverflow.com/questions/9007456/parallel-fetching-of-files Sounds like you want to use one of the flavors of HTTP Range that are available. edit Updated link to point to the w3.org..
Remove specific lines from a large text file in python http://stackoverflow.com/questions/9473921/remove-specific-lines-from-a-large-text-file-in-python as each file is over 100MB with over 4 million records. Range 150.0dB 64.9dBm Mobile unit 1 Base 17.19968 145.40369 999.8..
http://stackoverflow.com/questions/9816603/range-is-too-large-python is too large Python I'm trying to find the largest prime factor..
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