python Programming Glossary: smallWhy (0-6) is -6 = False? [duplicate] http://stackoverflow.com/questions/11476190/why-0-6-is-6-false longobject.c . A specific structure is used to refer small integers and share them so access is fast. It is an array of.. in a block of integer objects we saw above. The small integers range is from 5 to 257. Many Python programs spend..
Is there a difference between `==` and `is` in python? http://stackoverflow.com/questions/132988/is-there-a-difference-between-and-is-in-python your case the second test only works because Python caches small integer objects which is an implementation detail. For larger..
Get last n lines of a file with Python, similar to tail http://stackoverflow.com/questions/136168/get-last-n-lines-of-a-file-with-python-similar-to-tail to_read 2 except IOError # woops. apparently file is smaller than what we want # to step back go to the beginning instead.. 2 # read BUFFER data.append f.read BUFSIZ else # file too small start from begining f.seek 0 0 # only read what was not read..
What exactly do “u” and “r”string flags in Python, and what are raw string litterals? http://stackoverflow.com/questions/2081640/what-exactly-do-u-and-rstring-flags-in-python-and-what-are-raw-string-litte the Unicode object of course takes more memory space very small difference for a very short string obviously . share improve..
How do I download a file over HTTP using Python? http://stackoverflow.com/questions/22676/how-do-i-download-a-file-over-http-using-python do I download a file over HTTP using Python I have a small utility that I use to download an MP3 from a website on a schedule..
http://stackoverflow.com/questions/261638/how-do-i-protect-python-code need to enforce the license check securely write it as a small C extension so that the license check code can be extra hard..
String comparison in Python: is vs. == [duplicate] http://stackoverflow.com/questions/2988017/string-comparison-in-python-is-vs want the former. There's an optimization that allows small integers to be compared with is but don't rely on it. For boolean..
Python “is” operator behaves unexpectedly with integers http://stackoverflow.com/questions/306313/python-is-operator-behaves-unexpectedly-with-integers that Python is internally implemented such that small integers are stored in a different way than larger integers..
http://stackoverflow.com/questions/3455456/what-kinds-of-patterns-could-i-enforce-on-the-code-to-make-it-easier-to-translat hand. If the applications you intend to convert are pretty small well then that 20 is OK. If you attempt to convert 100K SLOC.. translator instead of simply doing a manual conversion for small code bases e.g. up to about 100K SLOC in our experience the..
Weighted random selection with and without replacement http://stackoverflow.com/questions/352670/weighted-random-selection-with-and-without-replacement was selecting a significant fraction of the list which is small enough to hold in memory. Does anyone have any suggestions on.. This is the probability of choosing each weight. Find the smallest power of 2 greater than or equal to the number of variables..
http://stackoverflow.com/questions/3684484/peak-detection-in-a-2d-array the hind legs. More specifically it can't recognize the small peak that's the fourth toe. This is obviously inherent to the.. some toes to be detected twice. The other way around in small dogs it often fails to find a 5th toe which I suspect is being.. I came to the staggering conclusion that for nearly all my small dogs it didn't find a 5th toe and that in over 50 of the impacts..
Single quotes vs. double quotes in Python [closed] http://stackoverflow.com/questions/56011/single-quotes-vs-double-quotes-in-python that are natural language messages and single quotes for small symbol like strings but will break the rules if the strings..
Django - Set Up A Scheduled Job? http://stackoverflow.com/questions/573618/django-set-up-a-scheduled-job files. However the cron solution works quite nicely for a small to medium sized application and where you don't want a lot of..
Why is reading lines from stdin much slower in C++ than Python? http://stackoverflow.com/questions/9371238/why-is-reading-lines-from-stdin-much-slower-in-c-than-python need to store the read lines in memory . Also note that a small tradeoff with using a char buffer and fgets vs unsynced cin.. Unfortunately this introduces a lot of overhead. For small amounts of input this isn't a big problem but when you are reading..
Simple Digit Recognition OCR in OpenCV-Python http://stackoverflow.com/questions/9413216/simple-digit-recognition-ocr-in-opencv-python to try on this . To prepare the data for training i made a small code in OpenCV. It does following things a It loads the image... im x y x w y h 0 0 255 2 roi thresh y y h x x w roismall cv2.resize roi 10 10 cv2.imshow 'norm' im key cv2.waitKey 0.. elif key in keys responses.append int chr key sample roismall.reshape 1 100 samples np.append samples sample 0 responses..
http://stackoverflow.com/questions/16467479/normalizing-unicode something which would translate a sequence like 'LATIN SMALL LETTER A' 'COMBINING ACUTE ACCENT' to 'LATIN SMALL LETTER A.. 'LATIN SMALL LETTER A' 'COMBINING ACUTE ACCENT' to 'LATIN SMALL LETTER A WITH ACUTE' See where is the problem import unicodedata.. char 獺 len char 1 unicodedata.name c for c in char 'LATIN SMALL LETTER A WITH ACUTE' But now char a len char 2 unicodedata.name..
python… encoding issue when using linux > [duplicate] http://stackoverflow.com/questions/17430168/python-encoding-issue-when-using-linux coding utf 8 print u R疇bjerg # unicodedata.name u 疇 'LATIN SMALL LETTER A WITH RING ABOVE' here is what i get when i use it from.. sys locale s u R疇bjerg # unicodedata.name u 疇 'LATIN SMALL LETTER A WITH RING ABOVE' if sys.stdout.encoding is None # if..
http://stackoverflow.com/questions/1766669/python-unicodedecodeerror with the correct answer unicodedata.name u' u0161' 'LATIN SMALL LETTER S WITH CARON' 16 That example shows what happens when..
python-re: How do I match an alpha character http://stackoverflow.com/questions/2039140/python-re-how-do-i-match-an-alpha-character repr x ucd.category x ucd.name x ... u' u0473' Ll CYRILLIC SMALL LETTER FITA u' u0660' Nd ARABIC INDIC DIGIT ZERO u' u06c9' Lo.. Lo ARABIC LETTER KIRGHIZ YU u' u24e8' So CIRCLED LATIN SMALL LETTER Y u' u4e0a' Lo CJK UNIFIED IDEOGRAPH 4E0A u' u3020' So.. category Nd so it doesn't match d U 2438 CIRCLED LATIN SMALL LETTER Y doesn't match w All CJK ideographs are classed as letters..
SQLite, python, unicode, and non-utf data http://stackoverflow.com/questions/2392732/sqlite-python-unicode-and-non-utf-data import unicodedata unicodedata.name oacute_unicode 'LATIN SMALL LETTER O WITH ACUTE' print repr oacute_utf8 ' xc3 xb3' If you..
Why does Python print unicode characters when the default encoding is ASCII? http://stackoverflow.com/questions/2596714/why-does-python-print-unicode-characters-when-the-default-encoding-is-ascii sys sys.stdout.encoding 'cp437' ud.name u' xe9' 'LATIN SMALL LETTER E WITH ACUTE' ud.name ' xe9'.decode 'cp437' 'GREEK CAPITAL.. THETA' import unicodedata as ud ud.name u' xe9' 'LATIN SMALL LETTER E WITH ACUTE' ' xe9'.decode 'cp437' u' u0398' ud.name..
Character Sets explained for Dummies! [closed] http://stackoverflow.com/questions/3049090/character-sets-explained-for-dummies 35 DD 0A Grapheme e ́ Code points U 0065 LATIN SMALL LETTER E U 0301 COMBINING ACUTE ACCENT ASCII 65 doesn't support..
What is the best open source solution for storing time series data? [closed] http://stackoverflow.com/questions/1334813/what-is-the-best-open-source-solution-for-storing-time-series-data open source and free solution to a proprietary costly one. Small note I am writing this application in Python. python database..
python variables are pointers? http://stackoverflow.com/questions/13530998/python-variables-are-pointers print i # i still bound to the int 5 j bound to the int 3 Small ints are interned but that isn't important to this explanation..
How do I write to the middle of a text file while reading its contents? http://stackoverflow.com/questions/16556944/how-do-i-write-to-the-middle-of-a-text-file-while-reading-its-contents with moving files and for helping me in with tcl script. Small doubt i had with python code.. as below.. import os import shutil..
When should I use uuid.uuid1() vs. uuid.uuid4() in python? http://stackoverflow.com/questions/1785503/when-should-i-use-uuid-uuid1-vs-uuid-uuid4-in-python The chance of a collision is really really really small. Small enough that you shouldn't worry about it. The problem is that..
Best video manipulation library for python? [closed] http://stackoverflow.com/questions/220866/best-video-manipulation-library-for-python pyglet using the media module gst python Requirements Small footprint. I'm already using wxpython just because which bloats..
Pure Python rational numbers module for 2.5 http://stackoverflow.com/questions/329333/pure-python-rational-numbers-module-for-2-5 numbers module for 2.5 Has anybody seen such a thing Small self sufficient modules are preferred. python rational numbers..
How to detect motion between two PIL images? (wxPython webcam integration example included) http://stackoverflow.com/questions/5524179/how-to-detect-motion-between-two-pil-images-wxpython-webcam-integration-exampl 'test_diff1.png' print image_entropy img # 1.58496250072 # Small Difference img ImageChops.difference img1 img2 img.save 'test_diff2.png'..
Unicode literals that work in python 3 and 2 http://stackoverflow.com/questions/6625782/unicode-literals-that-work-in-python-3-and-2 u ' u00dcnic u00f6de' nic繹de print u ' xdcnic N Latin Small Letter O with diaeresis de' nic繹de In Python 3.3 recently released..
How to save big (not huge) dictonaries in Python? http://stackoverflow.com/questions/9232944/how-to-save-big-not-huge-dictonaries-in-python as value. I don't need the file to be human readable. Small size and fast loading times are more important. First I tried..
A tool to convert MATLAB code to Python http://stackoverflow.com/questions/9845292/a-tool-to-convert-matlab-code-to-python for converting Python code to Matlab code not tested yet Small Matlab to Python compiler convert Matlab code to Python code..
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