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python Programming Glossary: elements

How to generate all permutations of a list in Python

http://stackoverflow.com/questions/104420/how-to-generate-all-permutations-of-a-list-in-python

of a list in Python independently of the type of elements in that list. For example permutations permutations 1 1 permutations.. http code.activestate.com recipes 252178 def all_perms elements if len elements 1 yield elements else for perm in all_perms.. recipes 252178 def all_perms elements if len elements 1 yield elements else for perm in all_perms elements 1 for..

Difference between __str__ and __repr__ in Python

http://stackoverflow.com/questions/1436703/difference-between-str-and-repr-in-python

world this is a list oh I don't know containing just 4 elements be Not very. Specifically the strings in a container would find..

Loop “Forgets” to Remove Some Items

http://stackoverflow.com/questions/17299581/loop-forgets-to-remove-some-items

Instead make a copy of the list so you don't remove elements from what you're iterating through. for char in textlist #shallow.. is really just syntactic sugar it still accesses list elements by index. So when you remove elements from the list while iterating.. still accesses list elements by index. So when you remove elements from the list while iterating over it you start skipping values..

Python list problem

http://stackoverflow.com/questions/1959744/python-list-problem

This is by design. When you use multiplication on elements of a list you are reproducing the references. See the section..

What are “named tuples” in Python?

http://stackoverflow.com/questions/2970608/what-are-named-tuples-in-python

I never heard about named tuples before and I thought elements could either be indexed by numbers like in tuples and lists..

Weighted random selection with and without replacement

http://stackoverflow.com/questions/352670/weighted-random-selection-with-and-without-replacement

Recently I needed to do weighted random selection of elements from a list both with and without replacement. While there are..

Python code to pick out all possible combinations from a list?

http://stackoverflow.com/questions/464864/python-code-to-pick-out-all-possible-combinations-from-a-list

iterable r Return r length subsequences of elements from the input iterable. Combinations are emitted in lexicographic..

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

algorithm for removing duplicates from a list so that all elements are unique while preserving order python list unique share..

Python's slice notation

http://stackoverflow.com/questions/509211/pythons-slice-notation

So the difference beween end and start is the number of elements selected if step is 1 the default . The other feature is that..

Why is python ordering my dictionary like so?

http://stackoverflow.com/questions/526125/why-is-python-ordering-my-dictionary-like-so

documentation states this outright where the order of elements is well defined but not immediately obvious. Your observations..

Python Lambda - why?

http://stackoverflow.com/questions/890128/python-lambda-why

lambda x x 3 0 1 2 3 4 5 6 7 8 9 sets mult3 to 3 6 9 those elements of the original list that are multiples of 3. This is shorter..

img = Image.open(fp) AttributeError: class Image has no attribute 'open'

http://stackoverflow.com/questions/10748822/img-image-openfp-attributeerror-class-image-has-no-attribute-open

inch Page d s doc.page pageinfo canvas.restoreState def go Elements.insert 0 Spacer 0 inch doc SimpleDocTemplate 'ss.pdf' doc.build.. 0 Spacer 0 inch doc SimpleDocTemplate 'ss.pdf' doc.build Elements onFirstPage myFirstPage onLaterPages myLaterPages Elements HeaderStyle.. Elements onFirstPage myFirstPage onLaterPages myLaterPages Elements HeaderStyle styles Heading1 # XXXX def header txt style HeaderStyle..

Python XML Remove Some Elements and Their Children but Keep Specific Elements and Their Children

http://stackoverflow.com/questions/15168259/python-xml-remove-some-elements-and-their-children-but-keep-specific-elements-an

XML Remove Some Elements and Their Children but Keep Specific Elements and Their Children.. Remove Some Elements and Their Children but Keep Specific Elements and Their Children I have a very large .xml file and I am trying..

Playing RTSP with python-gstreamer

http://stackoverflow.com/questions/4192871/playing-rtsp-with-python-gstreamer

ffdec_mpeg4 ffmpegcolorspace autovideosink Create Pipe's Elements pipeline gst_pipeline_new video player g_assert pipeline source.. bus bus_call loop gst_object_unref bus Add Elements to the Bin gst_bin_add_many GST_BIN pipeline source demux decoder..

How to find XML Elements via XPath in Python in a namespace-agnostic way?

http://stackoverflow.com/questions/5572247/how-to-find-xml-elements-via-xpath-in-python-in-a-namespace-agnostic-way

to find XML Elements via XPath in Python in a namespace agnostic way since I had.. I thought that asking would help. Sometimes I have to get Elements from XML documents but the ways to do this are awkward. I ™d..

Why does Python's itertools.permutations contain duplicates? (When the original list has duplicates)

http://stackoverflow.com/questions/6534430/why-does-pythons-itertools-permutations-contain-duplicates-when-the-original

pointed out in an answer the Python documentation says so Elements are treated as unique based on their position not on their value...

correct way to define class variables in Python [duplicate]

http://stackoverflow.com/questions/9056957/correct-way-to-define-class-variables-in-python

they are just two different kind of class elements Elements outside the __init__ method are static elements it means they.. are static elements it means they belong to the class. Elements inside the __init__ method are elements of the object self they..