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python Programming Glossary: yieldHow to generate all permutations of a list in Python http://stackoverflow.com/questions/104420/how-to-generate-all-permutations-of-a-list-in-python recipes 252178 def all_perms elements if len elements 1 yield elements else for perm in all_perms elements 1 for i in range.. #nb elements 0 1 works in both string and list contexts yield perm i elements 0 1 perm i A couple of alternative approaches.. else r if r n return indices range n cycles range n n r 1 yield tuple pool i for i in indices r while n for i in reversed range..
Flatten (an irregular) list of lists in Python http://stackoverflow.com/questions/2158395/flatten-an-irregular-list-of-lists-in-python and not isinstance el basestring for sub in flatten el yield sub else yield el I used the Iterable ABC added in 2.6. share.. el basestring for sub in flatten el yield sub else yield el I used the Iterable ABC added in 2.6. share improve this..
The Python yield keyword explained http://stackoverflow.com/questions/231767/the-python-yield-keyword-explained Python yield keyword explained What is the use of the yield keyword in Python.. Python yield keyword explained What is the use of the yield keyword in Python What does it do For example I'm trying to.. if self._leftchild and distance max_dist self._median yield self._leftchild if self._rightchild and distance max_dist self._median..
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 share improve this question Here's a generator that yields the chunks you want def chunks l n Yield successive n sized.. n sized chunks from l. for i in xrange 0 len l n yield l i i n import pprint pprint.pprint list chunks range 10 75..
http://stackoverflow.com/questions/1335392/iteration-over-list-slices chunksize self.chunk def __call__ self iterable Yield items from `iterable` `self.chunksize` at the time. assert len..
Python generators in various languages [closed] http://stackoverflow.com/questions/1451304/python-generators-in-various-languages is an example in C that simulates generators using fibers Yield Return Iterator for Native C Using Fibers The yield return iterator..
Redirect command prompt output to a python generated window http://stackoverflow.com/questions/15471007/redirect-command-prompt-output-to-a-python-generated-window print while True line proc.stdout.readline wx.Yield if line.strip pass else print line.strip if not line break.. is the stdout parameter in your subprocess call and the wx.Yield is important too. The Yield allows the text to get printed i.e... subprocess call and the wx.Yield is important too. The Yield allows the text to get printed i.e. redirected to stdout. Without..
splitting a list of arbitrary size into only roughly N-equal parts http://stackoverflow.com/questions/2130016/splitting-a-list-of-arbitrary-size-into-only-roughly-n-equal-parts think of is something that was posted here def chunks l n Yield successive n sized chunks from l. for i in xrange 0 len l n..
Yield multiple objects at a time from an iterable object? http://stackoverflow.com/questions/2202461/yield-multiple-objects-at-a-time-from-an-iterable-object multiple objects at a time from an iterable object How can..
The Python yield keyword explained http://stackoverflow.com/questions/231767/the-python-yield-keyword-explained about it and calculate 1 and end calculating 4 one by one. Yield Yield is a keyword that is used like return except the function.. it and calculate 1 and end calculating 4 one by one. Yield Yield is a keyword that is used like return except the function will..
Extract the SHA1 hash from a torrent file http://stackoverflow.com/questions/2572521/extract-the-sha1-hash-from-a-torrent-file sys os hashlib StringIO bencode def pieces_generator info Yield pieces from download file s . piece_length info 'piece length'..
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 a generator that yields the chunks you want def chunks l n Yield successive n sized chunks from l. for i in xrange 0 len l n..
Generate permutations of list with repeated elements http://stackoverflow.com/questions/4250125/generate-permutations-of-list-with-repeated-elements Like C std next_permutation but implemented as generator. Yields copies of seq. def reverse seq start end # seq seq start reversed.. must allow random access. first 0 last len seq seq seq # Yield input sequence as the STL version is often # used inside do..
Iterate over subclasses of a given class in a given module http://stackoverflow.com/questions/44352/iterate-over-subclasses-of-a-given-class-in-a-given-module one way to do it import inspect def get_subclasses mod cls Yield the classes in module ``mod`` that inherit from ``cls`` for..
Simple Prime Generator in Python http://stackoverflow.com/questions/567222/simple-prime-generator-in-python q 2 while True if q not in D # q is a new prime. # Yield it and mark its first multiple that isn't # already marked in..
Using Scrapy with authenticated (logged in) user session http://stackoverflow.com/questions/5850755/using-scrapy-with-authenticated-logged-in-user-session # .. do something with them links hxs.select ' a @href' # Yield a new request for each link we found for link in links yield..
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