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python Programming Glossary: itWhat is a metaclass in Python? http://stackoverflow.com/questions/100003/what-is-a-metaclass-in-python they're just OO concepts but this one is tricky. I know it has something to do with introspection but it's still unclear.. but this one is tricky. I know it has something to do with introspection but it's still unclear to me. So what are metaclasses.. I know it has something to do with introspection but it's still unclear to me. So what are metaclasses What do you use..
The Python yield keyword explained http://stackoverflow.com/questions/231767/the-python-yield-keyword-explained What is the use of the yield keyword in Python What does it do For example I'm trying to understand this code def node._get_child_candidates.. called A list is returned A single element is returned Is it called again When subsequent calls do stop The code comes from.. source http well adjusted.de ~jrschulz mspace . python iterator generator yield share improve this question To understand..
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 do you split a list into evenly sized chunks in Python I have a list of.. into evenly sized chunks in Python I have a list of arbitrary length and I need to split it up into equal size chunks.. Python I have a list of arbitrary length and I need to split it up into equal size chunks and operate on it. There are some..
http://stackoverflow.com/questions/509211/pythons-slice-notation on Python's slice notation To me this notation needs a bit of picking up. It looks extremely powerful but I haven't quite.. of picking up. It looks extremely powerful but I haven't quite got my head around it and am looking for a good guide. python.. extremely powerful but I haven't quite got my head around it and am looking for a good guide. python slice share improve..
What is a metaclass in Python? http://stackoverflow.com/questions/100003/what-is-a-metaclass-in-python different uses according to the parameters you pass to it. It's an issue due to backwards compatibility in Python type works.. lets you do something like this MyClass type 'MyClass' It's because the function type is in fact a metaclass. type is.. metaclasses for something as trivial as the above example. It's usually for something complicated. Having the ability to make..
The Python yield keyword explained http://stackoverflow.com/questions/231767/the-python-yield-keyword-explained what generators are. And before generators come iterables. Iterables When you create a list you can read its items one by.. are iterators but you can only iterate over them once . It's because they do not store all the values in memory they generate.. x for x in range 3 for i in mygenerator ... print i 0 1 4 It is just the same except you used instead of . BUT you can not..
http://stackoverflow.com/questions/2709821/python-self-explained self name self.name name Can anyone talk me through this It is not something I've come across in my admittedly limited experience...
Is there any way to kill a Thread in Python? http://stackoverflow.com/questions/323972/is-there-any-way-to-kill-a-thread-in-python python multithreading share improve this question It is generally a bad pattern to kill a thread abruptly in python..
How can I represent an 'Enum' in Python? http://stackoverflow.com/questions/36932/how-can-i-represent-an-enum-in-python name but it is useful for rendering your enums in output. It will throw KeyError if the reverse mapping doesn't exist. With..
Flattening a shallow list in Python http://stackoverflow.com/questions/406121/flattening-a-shallow-list-in-python print list chain 'image00' 'image01' 'image10' It will work on anything that's iterable which should include Django's..
What does `if __name__ == “__main__”:` do? http://stackoverflow.com/questions/419163/what-does-if-name-main-do will execute the import statement and load those modules. It will then evaluate the def block creating a function object.. called myfunction that points to the function object. It will then read the if statement and see that __name__ does equal..
What is the most “pythonic” way to iterate over a list in chunks? http://stackoverflow.com/questions/434287/what-is-the-most-pythonic-way-to-iterate-over-a-list-in-chunks op for example code foo ints i ints i 1 ints i 2 ints i 3 It looks a lot like C think though which makes me suspect there's..
http://stackoverflow.com/questions/509211/pythons-slice-notation notation To me this notation needs a bit of picking up. It looks extremely powerful but I haven't quite got my head around.. good guide. python slice share improve this question It's pretty simple really a start end # items start through end..
Old style and new style classes in Python http://stackoverflow.com/questions/54867/old-style-and-new-style-classes-in-python to provide a unified object model with a full meta model . It also has a number of immediate benefits like the ability to.. from object or not classes are new style in Python 3. It is however recommended that you still subclass from object ...
Python: How do I pass a variable by reference? http://stackoverflow.com/questions/986006/python-how-do-i-pass-a-variable-by-reference change where outer_list pointed. String an immutable type It's immutable so there's nothing we can do to change the contents.. by the sea' print 'set to' the_string outer_string 'It was many and many a year ago' print 'before outer_string ' outer_string.. outer_string ' outer_string Output before outer_string It was many and many a year ago got It was many and many a year..
Simulate multiple IP addresses for testing http://stackoverflow.com/questions/1308879/simulate-multiple-ip-addresses-for-testing using DHCP you will need to get a static base IP from your IT. Otherwise click on Advanced and under 'IP Addresses' click..
http://stackoverflow.com/questions/13893287/python-time-limit over when I type last character. LOOP WILL NOT STOP UNTIL IT FINISHES AND WE DISCOVER THAT WE ARE PAST OUR DEADLINE. THE..
Most useful Python modules from the standard library? [closed] http://stackoverflow.com/questions/1453952/most-useful-python-modules-from-the-standard-library to mention math decimal and datetime and time and re . For IT types who will be doing file oriented work glob fnmatch os os.path..
How can I order a list of connections http://stackoverflow.com/questions/16409486/how-can-i-order-a-list-of-connections proportional to the number of edges dependency pairs . HOW IT WORKS The algorithm is organized around a lookup table called..
How to spawn future only if free worker is available http://stackoverflow.com/questions/18770534/how-to-spawn-future-only-if-free-worker-is-available import concurrent.futures as CF import itertools as IT import logging logger logging.getLogger __name__ logging.basicConfig..
Python wont remove items from list http://stackoverflow.com/questions/4301634/python-wont-remove-items-from-list stumped but any help is appreciated thanks SORRY i FIXED IT NOW python list share improve this question The list comprehension..
http://stackoverflow.com/questions/4418446/corba-event-client-etimedout Any guidance is greatly appreciated Thanks in advance EDIT Unfortunately updating ip6tables nor iptables didn't work. It.. I am able to have a remote call return data but as soon as IT wants to initiate the response event it causes this problem.. is my log from strace... pid 17571 futex 0xa298288 FUTEX_WAIT_PRIVATE 1 4 999961668 unfinished ... pid 17568 ... poll resumed..
How to tell BeautifulSoup to extract the content of a specific tag as text? (without touching it) http://stackoverflow.com/questions/4922969/how-to-tell-beautifulsoup-to-extract-the-content-of-a-specific-tag-as-text-wit as text with BeautifulSoup without letting it fix what IT thinks are html markup errors python syntax highlighting beautifulsoup..
http://stackoverflow.com/questions/5942402/python-csv-to-sqlite Everything works as I expect it to with the exception... IT TAKES AN INCREDIBLE AMOUNT OF TIME TO PROCESS. Am I coding it.. convert a few fields of a csv into sqlite table Thanks EDIT I tried directly importing the csv into sqlite as suggested..
http://stackoverflow.com/questions/6174369/time-issues 0 tm_min 0 tm_sec 0 tm_wday 0 tm_yday 302 tm_isdst 0 IT CONTINUES UTNIL TODAY.................. The first lines returned.. 0 tm_min 0 tm_sec 0 tm_wday 0 tm_yday 302 tm_isdst 0 IT CONTINUES UTNIL TODAY.................. So in windows we get.. 1973 UTC Sun Oct 28 02 59 59 1973 BST isdst 1 gmtoff 3600 IT CONTINNUES UNTIL 1979 .......... As you can see we don't see..
Appengine: put_async doesn't work (at least in the development server)? http://stackoverflow.com/questions/7244081/appengine-put-async-doesnt-work-at-least-in-the-development-server doesn't work at least in the development server NOTE IT DOES WORK IN PRODUCTION. I MEAN WHEN I UPLOAD THE APPLICATION.. WORK IN PRODUCTION. I MEAN WHEN I UPLOAD THE APPLICATION IT JUST WORKS FINE. THE PROBLEM IS IN THE DEVELOPMENT SERVER. Here..
What is the difference between a site and an app in Django? http://stackoverflow.com/questions/734255/what-is-the-difference-between-a-site-and-an-app-in-django 'StackOverflow.com' or 'RackOverflow.com' or whatever the IT targeted version will be called even though it's the same codebase..
CamelCase every string, any standard library? http://stackoverflow.com/questions/8347048/camelcase-every-string-any-standard-library wanted CamelCase you can use this ''.join x for x in 'make IT camel CaSe'.title if not x.isspace 'MakeItCamelCase' share..
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