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python Programming Glossary: lambdaPython List Comprehension Vs. Map http://stackoverflow.com/questions/1247486/python-list-comprehension-vs-map faster in some cases when you're NOT making a lambda for the purpose but using the same function in map and a listcomp.. comparison gets completely reversed when map needs a lambda python mtimeit s'xs range 10 ' 'map lambda x x 2 xs ' 100000.. map needs a lambda python mtimeit s'xs range 10 ' 'map lambda x x 2 xs ' 100000 loops best of 3 4.24 usec per loop python..
What do (lambda) function closures capture in Python? http://stackoverflow.com/questions/2295290/what-do-lambda-function-closures-capture-in-python do lambda function closures capture in Python Recently I started playing.. following code adders 0 1 2 3 for i in 0 1 2 3 adders i lambda a i a print adders 1 3 It builds a simple array of functions.. iterator i runs from 0 to 3. For each of these number a lambda funciton is created which captures i and adds it to the function's..
http://stackoverflow.com/questions/233673/lexical-closures-in-python in flist print f 2 Note that this example mindfully avoids lambda . It prints 4 4 4 which is surprising. I'd expect 0 2 4 . This..
Short Description of Python Scoping Rules http://stackoverflow.com/questions/291978/short-description-of-python-scoping-rules when the function spam is passed somewhere else. And maybe lambda functions pass a bit differently There must be a simple reference.. Local. Names assigned in any way within a function def or lambda and not declared global in that function. E. Enclosing function.. the local scope of any and all enclosing functions def or lambda form inner to outer. G. Global module . Names assigned at the..
Flattening a shallow list in Python http://stackoverflow.com/questions/406121/flattening-a-shallow-list-in-python results with a reduce statement reduce list.__add__ map lambda x list x mi.image_set.all for mi in list_of_menuitems Note I..
How to improve performance of this code? http://stackoverflow.com/questions/4295799/how-to-improve-performance-of-this-code node neighbor current.g 1 current #sorted openlist cmp lambda x y x.f y.f def solve formation return astar formation heuristic..
Does Python have a built in function for string natural sort? http://stackoverflow.com/questions/4836710/does-python-have-a-built-in-function-for-string-natural-sort 'elm1' 'elm10' 'elm13' 'elm9' natsort.natsorted x key lambda y y.lower 'elm0' 'elm1' 'Elm2' 'elm9' 'elm10' 'Elm11' 'Elm12'..
How can you profile a Python script? http://stackoverflow.com/questions/582336/how-can-you-profile-a-python-script string 1 module 1000 0.051 0.000 0.051 0.000 euler048.py 2 lambda 1 0.005 0.005 0.061 0.061 euler048.py 2 module 1 0.000 0.000..
Recommendations of Python REST (web services) framework? [closed] http://stackoverflow.com/questions/713847/recommendations-of-python-rest-web-services-framework import json from mimerender import mimerender render_xml lambda message ' message s message ' message render_json lambda args.. lambda message ' message s message ' message render_json lambda args json.dumps args render_html lambda message ' html body.. render_json lambda args json.dumps args render_html lambda message ' html body s body html ' message render_txt lambda..
Simple Digit Recognition OCR in OpenCV-Python http://stackoverflow.com/questions/9413216/simple-digit-recognition-ocr-in-opencv-python a np.loadtxt fn np.float32 delimiter ' ' converters 0 lambda ch ord ch ord 'A' samples responses a 1 a 0 model cv2.KNearest..
Making a flat list out of list of lists in Python [duplicate] http://stackoverflow.com/questions/952914/making-a-flat-list-out-of-list-of-lists-in-python reduce but I get an error. Code l 1 2 3 4 5 6 7 8 9 reduce lambda x y x.extend y l Error message Traceback most recent call last.. per loop python mtimeit s'l 1 2 3 4 5 6 7 8 9 99' 'reduce lambda x y x y l ' 1000 loops best of 3 1.1 msec per loop Explanation..
http://stackoverflow.com/questions/1107210/python-lambda-problems Lambda Problems What's going on here I'm trying to create a list of..
No Multiline Lambda in Python: Why not? http://stackoverflow.com/questions/1233448/no-multiline-lambda-in-python-why-not Multiline Lambda in Python Why not I've heard it said that multiline lambdas..
Which is more preferable to use in Python: lambda functions or nested functions ('def')? http://stackoverflow.com/questions/134626/which-is-more-preferable-to-use-in-python-lambda-functions-or-nested-functions same thing if either were found within another function Lambda function a lambda x 1 x a 5 6 Nested function def b x return..
strange behavior with lamba: getattr(obj, x) inside a list [duplicate] http://stackoverflow.com/questions/17192226/strange-behavior-with-lamba-getattrobj-x-inside-a-list This question already has an answer here Weird behavior Lambda inside list comprehension 5 answers In the following..
http://stackoverflow.com/questions/3259322/why-use-lambda-functions 2 3 1 5 10 11 3 a.sort key lambda x x 1 From another angle Lambda expressions are also known as anonymous functions and are very..
Weird behavior: Lambda inside list comprehension http://stackoverflow.com/questions/7368522/weird-behavior-lambda-inside-list-comprehension behavior Lambda inside list comprehension In python 2.6 x for x in lambda m..
http://stackoverflow.com/questions/890128/python-lambda-why Lambda why I'm just beginning Python and ran head first into Lambda.. why I'm just beginning Python and ran head first into Lambda which took me a while to figure out. Is lambda one of those..
Syntax behind sorted(key=lambda :) http://stackoverflow.com/questions/8966538/syntax-behind-sortedkey-lambda They are all statements that typically have a code block. Lambda is just another instance of a statement with a code block. We..
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