python Programming Glossary: itemsWhat can you use Python generator functions for? http://stackoverflow.com/questions/102535/what-can-you-use-python-generator-functions-for You can think of generators as returning multiple items as if they return a list but instead of returning them all at..
Remove items from a list while iterating in Python http://stackoverflow.com/questions/1207406/remove-items-from-a-list-while-iterating-in-python items from a list while iterating in Python I'm iterating over a..
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 I want to paginate through the lines of the log file. The items in the file are line based with the newest item on the bottom...
The Python yield keyword explained http://stackoverflow.com/questions/231767/the-python-yield-keyword-explained Iterables When you create a list you can read its items one by one and it's called iteration mylist 1 2 3 for i in mylist..
What do *args and **kwargs mean? [duplicate] http://stackoverflow.com/questions/287085/what-do-args-and-kwargs-mean this question Putting args and or kwargs as the last items in your function definition 䏭 argument list allows that function..
*args and **kwargs? [duplicate] http://stackoverflow.com/questions/3394835/args-and-kwargs def table_things kwargs ... for name value in kwargs.items ... print ' 0 1 '.format name value ... table_things apple 'fruit'.. As you can see in this case it takes the list or tuple of items and matches them to the arguments in the function. Of course..
Flattening a shallow list in Python http://stackoverflow.com/questions/406121/flattening-a-shallow-list-in-python in menuitem.image_set.all for menuitem in list_of_menuitems But I get in trouble of the NameError variety there because.. map lambda x list x mi.image_set.all for mi in list_of_menuitems Note I need that list x call there because x is a Django QuerySet.. list.__add__ list mi.image_set.all for mi in list_of_menuitems This is the correct syntax for a nested list comprehension Brilliant..
How to improve performance of this code? http://stackoverflow.com/questions/4295799/how-to-improve-performance-of-this-code closedlist into a set object. This keeps hashes of its items so the in operator is much more efficient than for lists. However.. efficient than for lists. However lists aren't hashable items so you will have to change your configurations into tuples instead..
http://stackoverflow.com/questions/509211/pythons-slice-notation this question It's pretty simple really a start end # items start through end 1 a start # items start through the rest of.. really a start end # items start through end 1 a start # items start through the rest of the array a end # items from the beginning.. start # items start through the rest of the array a end # items from the beginning through end 1 a # a copy of the whole array..
http://stackoverflow.com/questions/7933596/django-dynamic-model-fields especially if you are going to end up storing thousands of items in one field. #app models.py class Something models.Model name..
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 intermediate result list object gets allocated and all the items in the previous intermediate result must be copied over as well.. actual loss of generality say you have L sublists of I items each the first I items are copied back and forth L 1 times the.. say you have L sublists of I items each the first I items are copied back and forth L 1 times the second I items L 2 times..
Items in JSON object are out of order using “json.dumps”? http://stackoverflow.com/questions/10844064/items-in-json-object-are-out-of-order-using-json-dumps in JSON object are out of order using &ldquo json.dumps&rdquo..
Need Help using XPath in ElementTree http://stackoverflow.com/questions/1319385/need-help-using-xpath-in-elementtree http webservices.amazon.com AWSECommerceService 2008 08 19 Items Item ItemAttributes ListPrice Amount 2260 Amount ListPrice ItemAttributes.. Amount 1853 Amount Price OfferListing Offer Offers Item Items ItemSearchResponse All I want to do is extract the ListPrice... ET.parse fp .getroot e element.findall 'ItemSearchResponse Items Item ItemAttributes ListPrice Amount' for i in e print i.text..
Making a multi-table inheritance design generic in Django http://stackoverflow.com/questions/1712683/making-a-multi-table-inheritance-design-generic-in-django can inherit an Item class. I need to be able to retrieve Items from the DB get the subclass and do stuff with it. My design..
Loop “Forgets” to Remove Some Items http://stackoverflow.com/questions/17299581/loop-forgets-to-remove-some-items &ldquo Forgets&rdquo to Remove Some Items in this code I am trying to create a function anti_vowel that..
How to find duplicate elements in array using for loop in python like c/c++? http://stackoverflow.com/questions/1920145/how-to-find-duplicate-elements-in-array-using-for-loop-in-python-like-c-c 2 2 5 2 1 1 3 1 6 1 7 1 Unique List list y 1 2 3 5 6 7 Items found more than 1 time i for i in y if y i 1 2 5 Items found.. 6 7 Items found more than 1 time i for i in y if y i 1 2 5 Items found only one time i for i in y if y i 1 1 3 6 7 share improve..
Items ordering in Python dictionary http://stackoverflow.com/questions/3127945/items-ordering-in-python-dictionary ordering in Python dictionary I am in simple doubt... I created..
Handling race condition in model.save() http://stackoverflow.com/questions/3522827/handling-race-condition-in-model-save From what I can tell this can go wrong if multiple Items are created concurrently. class OrderedList models.Model # ......
Django Templates and variable attributes http://stackoverflow.com/questions/35948/django-templates-and-variable-attributes to display the objects look something like Object Result Items item1 item2 Users name 'username' item1 3 item2 4 .. The django..
Removing Punctuation From Python List Items http://stackoverflow.com/questions/4371231/removing-punctuation-from-python-list-items Punctuation From Python List Items I have a list like 'hello' '...' 'h3.a' 'ds4 ' this should..
Possible Fix to deal with Python Memory usage http://stackoverflow.com/questions/5722872/possible-fix-to-deal-with-python-memory-usage store all the items in different stores and their prices. Items are alphanumerically ordered and if the item doesn't exist in..
Crawling with an authenticated session in Scrapy http://stackoverflow.com/questions/5851213/crawling-with-an-authenticated-session-in-scrapy I'm assuming . And I'm not sure how to go about saving the Items that I create. Anyone done something like this before Authenticate.. self response # Scrape data from page Saving items Items your Spider returns are passed along to the Pipeline which is..
Scrapy, define a pipleine to save files? http://stackoverflow.com/questions/7123387/scrapy-define-a-pipleine-to-save-files make a pipeline but from what I understand pipelines save Items and Items are just basic data like strings numbers. I need to.. but from what I understand pipelines save Items and Items are just basic data like strings numbers. I need to save .pdfs..
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