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python Programming Glossary: iteratingWhat can you use Python generator functions for? http://stackoverflow.com/questions/102535/what-can-you-use-python-generator-functions-for Generators give you lazy evaluation. You use them by iterating over them either explicitly with 'for' or implicitly by passing.. be done by just making the search function a generator and iterating over the result. If you want to see an example of the latter..
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 list of tuples in Python and.. items from a list while iterating in Python I'm iterating over a list of tuples in Python and am attempting to remove..
Should you always favor xrange() over range()? http://stackoverflow.com/questions/135041/should-you-always-favor-xrange-over-range this question For performance especially when you're iterating over a large range xrange is usually better. However there are.. forward. range can actually be faster in some cases eg. if iterating over the same sequence multiple times. xrange has to reconstruct..
“Large data” work flows using pandas http://stackoverflow.com/questions/14262433/large-data-work-flows-using-pandas have sure you have pandas at least 0.10.1 installed. Read iterating files chunk by chunk and multiple table queries . Since pytables..
Modifying list while iterating http://stackoverflow.com/questions/1637807/modifying-list-while-iterating list while iterating l range 100 for i in l print i print l.pop 0 print l.pop.. else's clever code that tries to modify a list while iterating over it. I resolved that I would never do it under any circumstance...
Loop “Forgets” to Remove Some Items http://stackoverflow.com/questions/17299581/loop-forgets-to-remove-some-items improve this question You're modifying the list you're iterating over which is bound to result in some strange behavior. Instead.. of the list so you don't remove elements from what you're iterating through. for char in textlist #shallow copy of the list # etc.. by index. So when you remove elements from the list while iterating over it you start skipping values as you can see above . As..
Python: create a dictionary with list comprehension http://stackoverflow.com/questions/1747817/python-create-a-dictionary-with-list-comprehension Can it be used to create dictionaries too For example by iterating over pairs of keys and values mydict k v for k v in blah blah..
http://stackoverflow.com/questions/19151/build-a-basic-python-iterator which is implicitly captured by looping constructs to stop iterating. Here's a simple example of a counter class Counter def __init__..
read subprocess stdout line by line http://stackoverflow.com/questions/2804543/read-subprocess-stdout-line-by-line line in proc.stdout which reads the entire input before iterating over it. The solution is to use readline instead #filters output..
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 passed in as a list of four element tuples. Currently I'm iterating over it this way for i in xrange 0 len ints 4 # dummy op for.. dealing with this situation. The list is discarded after iterating so it needn't be preserved. Perhaps something like this would..
Find all occurrences of a substring in Python http://stackoverflow.com/questions/4664850/find-all-occurrences-of-a-substring-in-python
Generator Expressions vs. List Comprehension http://stackoverflow.com/questions/47789/generator-expressions-vs-list-comprehension use a generator expression if all you're doing is iterating once. If you want to store and use the generated results then..
What is the best way to implement nested dictionaries in Python? http://stackoverflow.com/questions/635483/what-is-the-best-way-to-implement-nested-dictionaries-in-python 9 'new york' 'queens county' 'salesmen' 36 This makes iterating over the values very simple and natural but it is more syntactically..
Iterating through a range of dates in Python http://stackoverflow.com/questions/1060279/iterating-through-a-range-of-dates-in-python through a range of dates in Python I have the following code..
http://stackoverflow.com/questions/12719600/count-vowels-from-raw-input with in which checks to see if a key exists in the dict. Iterating on strings A string is a sequence type in Python which means..
Iterating over arbitrary dimension of numpy.array http://stackoverflow.com/questions/1589706/iterating-over-arbitrary-dimension-of-numpy-array over arbitrary dimension of numpy.array Is there function to.. an iterator over an arbitrary dimension of a numpy array Iterating over the first dimension is easy... In 63 c numpy.arange 24..
Iterating through a JSON object http://stackoverflow.com/questions/2733813/iterating-through-a-json-object through a JSON object title Baby Feat. Ludacris Justin Bieber..
Iterating through String word at a time in Python http://stackoverflow.com/questions/2768628/iterating-through-string-word-at-a-time-in-python through String word at a time in Python I have a string buffer.. string string matching share improve this question Iterating word by word through the contents of a file the Wizard of Oz..
Upload and parse csv file with google app engine http://stackoverflow.com/questions/2970599/upload-and-parse-csv-file-with-google-app-engine __file__ 'sample.csv' self.response.out.write file # Iterating over a file fileReader csv.reader file for row in fileReader.. file for row in fileReader self.response.out.write row # Iterating over a string fileReader csv.reader self.request.get 'csv' for.. an item. If stuff is a string each thing is a character. Iterating over the object returned by csv.reader is going to give you..
Iterating over Dictionaries…For Loops in Python http://stackoverflow.com/questions/3294889/iterating-over-dictionaries-for-loops-in-python over Dictionaries&hellip For Loops in Python I am a bit puzzled..
How to write a multidimensional array to a text file? http://stackoverflow.com/questions/3685265/how-to-write-a-multidimensional-array-to-a-text-file outfile.write '# Array shape 0 n'.format data.shape # Iterating through a ndimensional array produces slices along # the last..
Iterating through a scipy.sparse vector (or matrix) http://stackoverflow.com/questions/4319014/iterating-through-a-scipy-sparse-vector-or-matrix through a scipy.sparse vector or matrix I'm wondering what..
Creating a dictionary from a string http://stackoverflow.com/questions/4627981/creating-a-dictionary-from-a-string to do it. If I split on then how do I join the two parts Iterating over this seems to much of a pain. python string dictionary..
Iterating over a String (Python) http://stackoverflow.com/questions/538346/iterating-over-a-string-python over a String Python In C I could do for int i 0 i str.length..
Iterating over every two elements in a list http://stackoverflow.com/questions/5389507/iterating-over-every-two-elements-in-a-list over every two elements in a list How do I make a for loop..
iterate through pairs of items in python list [duplicate] http://stackoverflow.com/questions/5764782/iterate-through-pairs-of-items-in-python-list Duplicates Iterate a list as pair current next in Python Iterating over every two elements in a list Hi Is it possible to iterate..
http://stackoverflow.com/questions/6967463/iterating-over-a-numpy-array over a numpy array Is there a less verbose alternative to this..
Stripping non printable characters from a string in python http://stackoverflow.com/questions/92438/stripping-non-printable-characters-from-a-string-in-python string non printable share improve this question Iterating over strings is unfortunately rather slow in Python. Regular..
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