python Programming Glossary: mylist

http://stackoverflow.com/questions/1637807/modifying-list-while-iterating

it under any circumstance. You can use the slice operator mylist 3 to skip across to every third item in your list. mylist i.. mylist 3 to skip across to every third item in your list. mylist i for i in range 100 for i in mylist 3 print i Other points.. item in your list. mylist i for i in range 100 for i in mylist 3 print i Other points about my example relate to new syntax..

The Python yield keyword explained

http://stackoverflow.com/questions/231767/the-python-yield-keyword-explained

can read its items one by one and it's called iteration mylist 1 2 3 for i in mylist ... print i 1 2 3 Mylist is an iterable... one by one and it's called iteration mylist 1 2 3 for i in mylist ... print i 1 2 3 Mylist is an iterable. When you use a list.. a list comprehension you create a list and so an iterable mylist x x for x in range 3 for i in mylist ... print i 0 1 4 Everything..

How to print date in a regular format in Python?

http://stackoverflow.com/questions/311627/how-to-print-date-in-a-regular-format-in-python

everything goes wonky . Here is the code import datetime mylist today datetime.date.today mylist.append today print mylist This.. the code import datetime mylist today datetime.date.today mylist.append today print mylist This prints the following datetime.date.. mylist today datetime.date.today mylist.append today print mylist This prints the following datetime.date 2008 11 22 How on earth..

*args and **kwargs? [duplicate]

http://stackoverflow.com/questions/3394835/args-and-kwargs

a b c ... print 'a 0 b 1 c 2 '.format a b c ... mylist 'aardvark' 'baboon' 'cat' print_three_things mylist a aardvark.. c ... mylist 'aardvark' 'baboon' 'cat' print_three_things mylist a aardvark b baboon c cat As you can see in this case it takes..

How do I sort a list of strings in Python?

http://stackoverflow.com/questions/36139/how-do-i-sort-a-list-of-strings-in-python

sorting share improve this question Basic answer mylist b C A mylist.sort This modifies your original list i.e. sorts.. share improve this question Basic answer mylist b C A mylist.sort This modifies your original list i.e. sorts in place ... the original use the sorted function for x in sorted mylist print x However the examples above are a bit naive because they..

Python - how does passing values work?

http://stackoverflow.com/questions/11585768/python-how-does-passing-values-work

the object affects the object outside the function myList 1 func myList myList # myList has changed 2 def func x ... x.. affects the object outside the function myList 1 func myList myList # myList has changed 2 def func x ... x 2 # rebinding.. the object outside the function myList 1 func myList myList # myList has changed 2 def func x ... x 2 # rebinding name has..

Unexpected feature in a Python list of lists

http://stackoverflow.com/questions/240178/unexpected-feature-in-a-python-list-of-lists

create a list of lists in Python so I typed the following myList 1 4 3 The list looked like this 1 1 1 1 1 1 1 1 1 1 1 1 Then.. 1 1 1 1 1 1 1 1 Then I changed one of the innermost values myList 0 0 5 Now my list looks like this 5 1 1 1 5 1 1 1 5 1 1 1 which..

How do you remove duplicates from a list in Python if the item order is not important?

http://stackoverflow.com/questions/479897/how-do-you-remove-duplicates-from-a-list-in-python-if-the-item-order-is-not-impo

I know I can do this from sets import Set ... myHash Set myList but I don't know how to retrieve the list members from the hash.. can be sorted and deduplicated using built in functions myList sorted set myList set is a built in function for Python 2.3.. deduplicated using built in functions myList sorted set myList set is a built in function for Python 2.3 sorted is a built..

How can I get around declaring an unused variable in a for loop?

http://stackoverflow.com/questions/5477134/how-can-i-get-around-declaring-an-unused-variable-in-a-for-loop

a list comprehension for example like this '' for x in myList Effectively making a new list that has an empty string for every.. in a for loop and tuple assignment e.g. '' for _ in myList a d for a _ _ d _ in fiveTuples BTW your list could be written..

Searching a list of objects in Python

http://stackoverflow.com/questions/598398/searching-a-list-of-objects-in-python

what I'm trying to do. For instance class Data pass myList for i in range 20 data Data data.n i data.n_squared i i myList.append.. for i in range 20 data Data data.n i data.n_squared i i myList.append data How would I go about searching the myList list to.. i i myList.append data How would I go about searching the myList list to determine if it contains an element with n 5 I've been..

Explicitly select items from a Python list or tuple

http://stackoverflow.com/questions/6632188/explicitly-select-items-from-a-python-list-or-tuple

I have the following Python list can also be a tuple myList 'foo' 'bar' 'baz' 'quux' I can say myList 0 3 'foo' 'bar' 'baz'.. also be a tuple myList 'foo' 'bar' 'baz' 'quux' I can say myList 0 3 'foo' 'bar' 'baz' myList 2 'foo' 'baz' myList 1 2 'bar'.. 'bar' 'baz' 'quux' I can say myList 0 3 'foo' 'bar' 'baz' myList 2 'foo' 'baz' myList 1 2 'bar' 'quux' How do I explicitly pick..

What does the Python Ellipsis object do?

http://stackoverflow.com/questions/772124/what-does-the-python-ellipsis-object-do

an object that can appear in slice notation. For example myList 1 2 ... 0 Its interpretation is purely up to whatever implements..

Python list subtraction operation

http://stackoverflow.com/questions/3428536/python-list-subtraction-operation

If you want to use the infix syntax you can just do class MyList list def __init__ self args super MyList self .__init__ args.. can just do class MyList list def __init__ self args super MyList self .__init__ args def __sub__ self other return self.__class__.. in self if item not in other you can then use it like x MyList 1 2 3 4 y MyList 2 5 2 z x y But if you don't absolutely need..

Some built-in to pad a list in python

http://stackoverflow.com/questions/3438756/some-built-in-to-pad-a-list-in-python

of list and call the method whatever you please N 5 class MyList list def ljust self n fillvalue '' return self fillvalue N len..

Automatically expiring variable

http://stackoverflow.com/questions/3927166/automatically-expiring-variable

i wrote an example but it can be done much better class MyList list def __init__ self elems expires_time list.__init__ self..

What makes something iterable in python

http://stackoverflow.com/questions/5262235/what-makes-something-iterable-in-python

an __iter__ method that returns an iterator. Example class MyList object def __init__ self self.list 42 3.1415 Hello World def.. Hello World def __iter__ self return iter self.list m MyList for x in m print x prints 42 3.1415 Hello World The example..

Functional append/extend

http://stackoverflow.com/questions/5314820/functional-append-extend

itself on these operations in addition to change class MyList list ... def append self x ... super MyList self .append x ..... change class MyList list ... def append self x ... super MyList self .append x ... return self ... def extend self lst ... super.. x ... return self ... def extend self lst ... super MyList self .extend lst ... return self ... l MyList 1 2 3 l.append..