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python Programming Glossary: noticeWhat is a metaclass in Python? http://stackoverflow.com/questions/100003/what-is-a-metaclass-in-python the class __main__.MyShinyClass object at 0x8997cec You'll notice that we use MyShinyClass as the name of the class and as the.. future_class_parents uppercase_attr You may have noticed the extra argument upperattr_metaclass . There is nothing special..
Why can't you add attributes to object in python? [duplicate] http://stackoverflow.com/questions/1285269/why-cant-you-add-attributes-to-object-in-python 'object' object has no attribute '__dict__' and you'll notice there is a __dict__ instance. The object class may not have..
Difference between __str__ and __repr__ in Python http://stackoverflow.com/questions/1436703/difference-between-str-and-repr-in-python readable Specifically it is not intended to be unambiguous notice that str 3 str . Likewise if you implement an IP abstraction..
Behaviour of increment and decrement operators in Python http://stackoverflow.com/questions/1485841/behaviour-of-increment-and-decrement-operators-in-python decrement operators in Python I am a newbie to Python. I notice that a pre increment decrement operator can be applied on a..
When is “i += x” different from “i = i + x” in Python? http://stackoverflow.com/questions/15376509/when-is-i-x-different-from-i-i-x-in-python 1 2 3 b a b b 1 2 3 print a # 1 2 3 print b # 1 2 3 1 2 3 notice how in the first example since b and a reference the same object..
http://stackoverflow.com/questions/1818774/executing-a-subprocess-fails Systems Emb Work 5.4 arm bin mpr.dll ... cwd r ... # ... notice how you don't need to quote the elements containing spaces According..
How can I quantify difference between two images? http://stackoverflow.com/questions/189943/how-can-i-quantify-difference-between-two-images different. Is color information important If you want to notice color changes you will have a vector of color values per point.. best approach here. What kind of changes do you want to notice This may affect the choice of norm to use for the difference..
Mass string replace in python? http://stackoverflow.com/questions/1919096/mass-string-replace-in-python The yquick cbrown bfox Yjumps over the ulazy dog You'll notice a lot of locations in the string where there is an ampersand..
http://stackoverflow.com/questions/2958684/python-division to 0 to a range of 10 100 and was having problems only to notice that even with no variables at all this does not evaluate the..
http://stackoverflow.com/questions/364802/generator-comprehension item for item in my_list if item 3 print filtered_gen # notice it's a generator object generator object at 0xb7d5e02c len filtered_gen..
Finding the Current Active Window in Mac OS X using Python http://stackoverflow.com/questions/373020/finding-the-current-active-window-in-mac-os-x-using-python If you need this to work as a command line tool you'll notice the performance hit. If that's relevant to you you're probably..
Making moves w/ websockets and python / django ( / twisted? ) http://stackoverflow.com/questions/4363899/making-moves-w-websockets-and-python-django-twisted with the development server. The browser will never notice you know .. the socket is already closed but raising an unhandled..
python: can executable zip files include data files? http://stackoverflow.com/questions/5355694/python-can-executable-zip-files-include-data-files them to disk. I also would like to bundle a copyright notice release notes etc so that the entire app and its data files..
Python: Removing list element while iterating over list http://stackoverflow.com/questions/6022764/python-removing-list-element-while-iterating-over-list of remove_element I have seen similar questions asked but notice the presence of the do_action part that is to be executed for..
How can I parse a time string containing milliseconds in it with python? http://stackoverflow.com/questions/698223/how-can-i-parse-a-time-string-containing-milliseconds-in-it-with-python Edit I never really work with the time module so I didn't notice this at first but it appears that time.struct_time doesn't actually..
Django vs other Python web frameworks? http://stackoverflow.com/questions/702179/django-vs-other-python-web-frameworks taking another look at TG2. I think people have failed to notice some of the strides that have been made since the last version...
Python: find first element in a sequence that matches a predicate http://stackoverflow.com/questions/8534256/python-find-first-element-in-a-sequence-that-matches-a-predicate utility functions like this and people will probably not notice that they are already there so they tend to be repeated over..
how to pip uninstall with virtualenv on heroku cedar stack? http://stackoverflow.com/questions/8937905/how-to-pip-uninstall-with-virtualenv-on-heroku-cedar-stack buildpack python.git Now push your new code and you'll notice that the whole virtualenv gets reinstalled. Andrey's answer..
How to remove convexity defects in a Sudoku square? http://stackoverflow.com/questions/10196198/how-to-remove-convexity-defects-in-a-sudoku-square to square . Find the corner points. e.g. given below Notice here that the green line correctly coincides with the true boundary..
http://stackoverflow.com/questions/1119722/base-62-conversion-in-python idx 1 num alphabet.index char base power idx 1 return num Notice the fact that you can give it any Alphabet to use for encoding..
Why can't you add attributes to object in python? [duplicate] http://stackoverflow.com/questions/1285269/why-cant-you-add-attributes-to-object-in-python attributes instances share improve this question Notice that an object instance has no __dict__ attribute dir object..
Using the same decorator (with arguments) with functions and methods http://stackoverflow.com/questions/1288498/using-the-same-decorator-with-arguments-with-functions-and-methods request return func request return wrapped return wrapper Notice that the wrapper function is called on all function calls so..
What is the difference between @staticmethod and @classmethod in Python? http://stackoverflow.com/questions/136097/what-is-the-difference-between-staticmethod-and-classmethod-in-python this question Maybe a bit of example code will help Notice the difference in the call signatures of foo class_foo and static_foo..
Django Static Files results in 404 http://stackoverflow.com/questions/14799835/django-static-files-results-in-404 'django.contrib.staticfiles.finders.DefaultStorageFinder' Notice that I've left out the STATIC_ROOT here. This is because I don't..
How do you get list of methods in a python class? http://stackoverflow.com/questions/1911281/how-do-you-get-list-of-methods-in-a-python-class unbound method OptionParser.expand_prog_name ... Notice that getmembers returns a list of 2 tuples. The first item is..
Python: Using vars() to assign a string to a variable http://stackoverflow.com/questions/2320945/python-using-vars-to-assign-a-string-to-a-variable i in xrange 10 sequence.append function_that_returns_data Notice that we don't even need the i in the for loop. We're just trying..
SQLite, python, unicode, and non-utf data http://stackoverflow.com/questions/2392732/sqlite-python-unicode-and-non-utf-data decode byte 0xf3 in position 0 unexpected end of data Notice that the 'original' character displays correctly and the builtin..
Implementing a Patricia Trie for use as a dictionary http://stackoverflow.com/questions/2406416/implementing-a-patricia-trie-for-use-as-a-dictionary 'd' 'ef' x.addWord 'abc' 'a' 'bc' 'a' 'bc' '' '' 'd' 'ef' Notice that in the last case a '' key was added to the dictionary to..
Is it Pythonic to use bools as ints? http://stackoverflow.com/questions/3174392/is-it-pythonic-to-use-bools-as-ints should be a bool return 'No' 'Yes' value bool_to_str True Notice how value is bool but is used as an int . Is this this kind..
How to bind self events in Tkinter Text widget after it will binded by Text widget? http://stackoverflow.com/questions/3501849/how-to-bind-self-events-in-tkinter-text-widget-after-it-will-binded-by-text-widg code then press a key while the focus is in each window. Notice that in the first entry widget the binding always seems to be..
matplotlib: format axis offset-values to whole numbers or specific number http://stackoverflow.com/questions/3677368/matplotlib-format-axis-offset-values-to-whole-numbers-or-specific-number lambda x .1f x locs 1e9 ylabel 'microseconds 1E 9 ' show Notice how in the y axis case I multiplied the values by 1e9 then mentioned..
TypeError: 'module' object is not callable http://stackoverflow.com/questions/4534438/typeerror-module-object-is-not-callable socket import socket socket class 'socket._socketobject' Notice that the error here is pretty easy to understand if module object..
Python super method and calling alternatives http://stackoverflow.com/questions/5033903/python-super-method-and-calling-alternatives A.__init__ Now all the __init__ methods get called. Notice that at the time you define B.__init__ you might think that..
Python Config Parser (Duplicate Key Support) http://stackoverflow.com/questions/5396144/python-config-parser-duplicate-key-support defaults dict_type allow_no_value Notice the dict_type argument. When provided this will be used to construct..
Python multiprocessing.Pool: when to use apply, apply_async or map? http://stackoverflow.com/questions/8533318/python-multiprocessing-pool-when-to-use-apply-apply-async-or-map may yield a result such as 1 0 4 9 25 16 49 36 81 64 Notice unlike pool.map the order of the results may not correspond.. the same as the order of the calls to Pool.apply_async . Notice also that you could call a number of different functions with..
Python Class Members Initialization http://stackoverflow.com/questions/867219/python-class-members-initialization self.do_something_with_a2 print self.do_something_with_a3 Notice that every call to do_something_with_aX initializes a new clean..
Python multiprocessing pickling error http://stackoverflow.com/questions/8804830/python-multiprocessing-pickling-error def work foo foo.work pool.apply_async work args foo Notice that foo is pickable since Foo is defined at the top level and..
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