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python Programming Glossary: hereWhat is a metaclass in Python? http://stackoverflow.com/questions/100003/what-is-a-metaclass-in-python this is why it's a class . But still it's an object and therefore you can assign it to a variable you can copy it you can.. to hold the class reference. They can be different but there is no reason to complicate things. type accepts a dictionary.. True my_foo FooChild my_foo.echo_bar True You see where we are going in Python classes are objects and you can create..
Why does comparing strings in Python using either '==' or 'is' sometimes produce a different result? http://stackoverflow.com/questions/1504717/why-does-comparing-strings-in-python-using-either-or-is-sometimes-produce produce a different result I've got a python program where two variables are set to the value 'public' . In a conditional.. s1 'public' s2 'public' s2 is s1 True What am I missing here python share improve this question is is identity testing..
Flatten (an irregular) list of lists in Python http://stackoverflow.com/questions/2158395/flatten-an-irregular-list-of-lists-in-python in Python Yes I know this subject has been covered before here here here here but as far as I know all solutions except for.. Yes I know this subject has been covered before here here here here but as far as I know all solutions except for one.. Yes I know this subject has been covered before here here here here but as far as I know all solutions except for one fail..
The Python yield keyword explained http://stackoverflow.com/questions/231767/the-python-yield-keyword-explained function one more time and return the next value until there is no value to return. The generator is considered empty once.. be called each time you use the generator object # If there is still a child of the node object on its left # AND if distance.. max_dist self._median yield self._leftchild # If there is still a child of the node object on its right # AND if distance..
Import a module from a relative path http://stackoverflow.com/questions/279237/import-a-module-from-a-relative-path python packages do have the __init__.py file inside them here is a safe solution for inclusion of modules relatively to the..
Python “is” operator behaves unexpectedly with integers http://stackoverflow.com/questions/306313/python-is-operator-behaves-unexpectedly-with-integers expected result a 257 b 257 a is b False # what happened here why is this False 257 is 257 True # yet the literal numbers..
*args and **kwargs? [duplicate] http://stackoverflow.com/questions/3394835/args-and-kwargs and kwargs duplicate This question already has an answer here What does double star and star do for python parameters .. for what programming task this would helpful. I am sure there is but I can't get an understanding of it. Maybe I think to.. the same time as a wildcard so I can pass ANY argument Is there a simple example on which to explain how args and kwargs are..
Non-blocking read on a subprocess.PIPE in python http://stackoverflow.com/questions/375427/non-blocking-read-on-a-subprocess-pipe-in-python be able to execute non blocking reads on its stdout. Is there a way to make .readline non blocking or to check if there is.. there a way to make .readline non blocking or to check if there is data on the stream before I invoke .readline I'd like this.. to be portable or at least work under Windows and Linux. here is how I do it for now It's blocking on the .readline if no..
How to improve performance of this code? http://stackoverflow.com/questions/4295799/how-to-improve-performance-of-this-code performance of this code Thanks to some help from people here I was able to get my code for Tasmanian camels puzzle working... I've been tripped up by this before too. The bottleneck here is actually if neighbor in closedlist . The in statement is..
How can you profile a Python script? http://stackoverflow.com/questions/582336/how-can-you-profile-a-python-script each function was called making it easy to determine where you should make optimizations. You can call it from within your.. 0.000 0.000 range 1 0.003 0.003 0.003 0.003 sum EDIT There is a great talk on profiling from PyCon here http blip.tv file..
Syntax error on print with Python 3 http://stackoverflow.com/questions/826948/syntax-error-on-print-with-python-3 and am currently lost as to why print is giving a syntax here. Hoping someone might be able to point me in the right direction...
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 # bound method type.class_foo of class '__main__.A' Here with a staticmethod even though it is a method a.static_foo..
How can I attach a pyplot function to a figure instance? http://stackoverflow.com/questions/14254379/how-can-i-attach-a-pyplot-function-to-a-figure-instance some other figure instances which are created in parallel. Here is some example code from django.http import HttpResponse from..
How to install MySQLdb (Python data access library to MySQL) on Mac OS X? http://stackoverflow.com/questions/1448429/how-to-install-mysqldb-python-data-access-library-to-mysql-on-mac-os-x Mac OS X python mysql osx share improve this question Here is the tale of my rambling experience with this problem. Would..
How do I ensure that re.findall() stops at the right place? http://stackoverflow.com/questions/17765805/how-do-i-ensure-that-re-findall-stops-at-the-right-place do I ensure that re.findall stops at the right place Here is the code I have a ' title aaa title title aaa2 title title..
The Python yield keyword explained http://stackoverflow.com/questions/231767/the-python-yield-keyword-explained at 0xb7555c34 for i in mygenerator ... print i 0 1 4 Here it's a useless example but it's handy when you know your function.. satisfy a if else anymore. Your code explained Generator # Here you create the method of the node object that will return the.. self distance min_dist max_dist # Here is the code that will be called each time you use the generator..
http://stackoverflow.com/questions/233673/lexical-closures-in-python i is mutated and the closures all refer to the same i . Here is the best solution I can come up with create a function creater..
Weighted random selection with and without replacement http://stackoverflow.com/questions/352670/weighted-random-selection-with-and-without-replacement In this case the value is 0.5 and 0.5 0.6 so return a. Here is some code and another explanation but unfortunately it doesn't..
Flattening a shallow list in Python http://stackoverflow.com/questions/406121/flattening-a-shallow-list-in-python Thanks to everyone who contributed to this question. Here is a summary of what I learned. I'm also making this a community..
How to install pip on windows? http://stackoverflow.com/questions/4750806/how-to-install-pip-on-windows answer below http stackoverflow.com a 15966898 362951 Here is an external page about installing python and pip on windows..
How do you remove duplicates from a list in Python whilst preserving order? http://stackoverflow.com/questions/480214/how-do-you-remove-duplicates-from-a-list-in-python-whilst-preserving-order order python list unique share improve this question Here you have some alternatives http www.peterbe.com plog uniqifiers..
Why is python ordering my dictionary like so? http://stackoverflow.com/questions/526125/why-is-python-ordering-my-dictionary-like-so is python ordering my dictionary like so Here is the dictionary I have propertyList id int name char 40 team..
Python, Unicode, and the Windows console http://stackoverflow.com/questions/5419/python-unicode-and-the-windows-console 2.5. python unicode share improve this question Here is a page that details the problem and a solution search the..
Python's use of __new__ and __init__? http://stackoverflow.com/questions/674304/pythons-use-of-new-and-init implementation into the __new__ which feels quite hacky . Here's an example class A object _dict dict def __new__ cls if 'key'.. clean solution so please consider the usage of a factory. Here you have a good factory example . share improve this answer..
How can I make a chain of function decorators in Python? http://stackoverflow.com/questions/739654/how-can-i-make-a-chain-of-function-decorators-in-python Check out the documentation to see how decorators work. Here is what you asked for def makebold fn def wrapped return b fn..
list comprehension without [ ], Python http://stackoverflow.com/questions/9060653/list-comprehension-without-python comprehension without Python Here is the thing join a list ''.join str _ for _ in xrange 10 '0123456789'..
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 1 n seconds. LPS 2 n .format count delta_sec lines_per_sec Here are my results cat test_lines . readline_test_cpp Saw 5570000.. this iteration using fgets the safer alternative to gets. Here are the pertinent lines for my fellow noobs char input_line.. to read chunks of 16k bytes at a time and count new lines. Here's a python equivalent based on J.F.'s code just showing the..
Simple Digit Recognition OCR in OpenCV-Python http://stackoverflow.com/questions/9413216/simple-digit-recognition-ocr-in-opencv-python out cv2.waitKey 0 And it worked below is the result i got Here it worked with 100 accuracy for which the reason i assume is..
How to properly send HTTP response with Python using socket library only? http://stackoverflow.com/questions/10114224/how-to-properly-send-http-response-with-python-using-socket-library-only while True sock addr servSock.accept # WHAT GOES HERE sock.close As you can see I am not exactly sure how to actually..
dictionary shared between objects for no reason? http://stackoverflow.com/questions/10710689/dictionary-shared-between-objects-for-no-reason
Tkinter -> program freezing durint the execution of a function http://stackoverflow.com/questions/10847626/tkinter-program-freezing-durint-the-execution-of-a-function row 0 column 0 sticky W E def My_Command self ## HERE WE LAUNCH THE FUNCTION Module_1.main # My Big Function from..
How to log my traceback error? http://stackoverflow.com/questions/1508467/how-to-log-my-traceback-error me errors... How can I log my python errors try pass #CODE HERE except pass #LOG TRACEBACK ERROR ...whatever that error may..
http://stackoverflow.com/questions/1708835/receving-socket-python
Using Twill from Python to open a link: “ 'module' object has no attribute 'Popen' ” What is it? http://stackoverflow.com/questions/3621432/using-twill-from-python-to-open-a-link-module-object-has-no-attribute-pope None text 'config use_tidy 0 n' You can see the whole page HERE Do You have any idea what it means and what went wrong python..
Occasional ctypes error importing numpy from mod_wsgi django app http://stackoverflow.com/questions/3762566/occasional-ctypes-error-importing-numpy-from-mod-wsgi-django-app request A BUNCH OF DJANGO MIDDLEWARE STUFF HERE File home appfirst django django utils importlib.py line 35..
Linux: Pipe into Python (ncurses) script, stdin and termios http://stackoverflow.com/questions/3999114/linux-pipe-into-python-ncurses-script-stdin-and-termios open file ' stdin ' mode 'r' at 0xb77dc020 TYPING blabla HERE wr TYPING blabla HERE at end before curses TYPING blabla HERE.. mode 'r' at 0xb77dc020 TYPING blabla HERE wr TYPING blabla HERE at end before curses TYPING blabla HERE # # AT THIS POINT #.. wr TYPING blabla HERE at end before curses TYPING blabla HERE # # AT THIS POINT # in this case curses window is shown with..
Distributing Programs Written in Python [duplicate] http://stackoverflow.com/questions/4190635/distributing-programs-written-in-python on PyPi . More info for that procedure can be found HERE . In some cases there are reasons that prevent you from using..
Is there a Google Insights API? http://stackoverflow.com/questions/4440139/is-there-a-google-insights-api a 0 'int' self.queries.append a 1 # ENTER THE BASE QUERY HERE base_query #This is the base query base_query s alphabet abcdefghijklmnopqrstuvwxyz..
Trapping MySQL Warnings In Python http://stackoverflow.com/questions/647805/trapping-mysql-warnings-in-python IF EXISTS database_of_armaments' except WHAT DO I PUT HERE print 'There was a MySQL warning.' AND what goes here if I want..
How to integrate SQLAlchemy and a subclassed Numpy.ndarray smoothly and in a pythonic way? http://stackoverflow.com/questions/8940802/how-to-integrate-sqlalchemy-and-a-subclassed-numpy-ndarray-smoothly-and-in-a-pyt primary_key True name sa.Column sa.String unique True # HERE how to access DTONumpy BUT as MyNumpy Objects in a way that..
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