Hi,
is it possible to append new elements to a tuple? I know tuples are
immutable and that this would mean to create a new tuple with one more
element, but how do you do it?
i.e. i have (1,2,3) and want to append 4:
(1,2,3,4) instead of ((1,2,3),4)
I wanted to use it as a return value of a function and an assignment, but:
(a,b,c),d = myfunc()
doesn't look nice to me. I intended to have
a,b,c,d = myfunc()
Thanks for any suggestions.
Ciao
Uwe
--
2  2361 
Uwe Mayer wrote: is it possible to append new elements to a tuple? I know tuples are
immutable and that this would mean to create a new tuple with one more
element, but how do you do it?
Just use the + operator: a = (1, 2, 3)
a + (4,)
(1, 2, 3, 4) a
(1, 2, 3) a += (4, 5)
a
(1, 2, 3, 4, 5)
--
__ Erik Max Francis && ma*@alcyone.com && http://www.alcyone.com/max/
/ \ San Jose, CA, USA && 37 20 N 121 53 W && &tSftDotIotE
\__/ Here day fights with night.
-- (the last words of Victor Hugo)
Maybe you could use this? d=(1,2,3,4)
e=5,
d=d+e
d
(1, 2, 3, 4, 5)
Regards,
Arjen
"Uwe Mayer" <me*****@hadiko .de> schreef in bericht
news:bu******** *@news.rz.uni-karlsruhe.de... Hi,
is it possible to append new elements to a tuple? I know tuples are
immutable and that this would mean to create a new tuple with one more
element, but how do you do it?
i.e. i have (1,2,3) and want to append 4:
(1,2,3,4) instead of ((1,2,3),4)
I wanted to use it as a return value of a function and an assignment, but:
(a,b,c),d = myfunc()
doesn't look nice to me. I intended to have
a,b,c,d = myfunc()
Thanks for any suggestions.
Ciao
Uwe
--
This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
by: Marco Aschwanden |
last post by:
Hi
I don't have to talk about the beauty of Python and its clear and
readable syntax... but there are a few things that striked me while
learning Python.
I have collected those thoughts. I am sure there are many discussions
on the "problems" mentioned here. But I had this thoughts without
looking into any forums or anything... it is kind of feedback.
|
by: Nickolay Kolev |
last post by:
Hi all,
I have a list whose length is a multiple of 3. I want to get a list of
tuples each of which has 3 consecutive elements from the original list,
thus packing the list into smaller packets. Like this:
l =
tups =
|
by: Shi Mu |
last post by:
Got confused by the following code:
>>> a
>>> b
>>> c
{1: , ], 2: ]}
>>> c.append(b.sort())
>>> c
{1: , ], 2: , None]}
|
by: Christoph Zwerschke |
last post by:
Sometimes I find myself stumbling over Python issues which have to do
with what I perceive as a lack of orthogonality.
For instance, I just wanted to use the index() method on a tuple which
does not work. It only works on lists and strings, for no obvious
reason. Why not on all sequence types?
Or, another example, the index() method has start and end parameters for
lists and strings. The count() method also has start and end parameters...
|
by: greenflame |
last post by:
I would like to make a function that takes a list, more specificaly a
list of strings, and shuffles its elements, like a pile of cards. The
following is a script I tryed to make that implements pile shuffling.
----------
testdeck = list('qwertyuiop')
def pileshuffle(DECK, NUMPILES):
"""Split the deck given into NUMPILES piles. Then also put the
piles""" \
| | |
by: Jeremy Sanders |
last post by:
Here is a brief simple introduction to Python I wrote for a computing course
for graduate astronomers. It assumes some programming experience. Although
it is not a complete guide, I believe this could be a useful document for
other groups to learn Python, so I'm making it available for others to
download, and modify for their own needs (some of the content is site
specific).
HTML version:...
|
by: C.L. |
last post by:
I was looking for a function or method that would return the index to the first
matching element in a list. Coming from a C++ STL background, I thought it might
be called "find". My first stop was the Sequence Types page of the Library
Reference (http://docs.python.org/lib/typesseq.html); it wasn't there. A search
of the Library Reference's index seemed to confirm that the function did not
exist. A little later I realized it might be called...
|
by: =?utf-8?B?TWFjaWVqIEJsaXppxYRza2k=?= |
last post by:
Hi Pythonistas!
I've got a question about storing tuples in a dictionary. First, a
small test case which creates a list of dictionaries:
import time
list_of_dicts =
keys =
prev_clk = time.clock()
|
by: =?ISO-8859-1?Q?=22Martin_v=2E_L=F6wis=22?= |
last post by:
``odict.byindex(index)``
For this API, I think it's important to make some performance
guarantees. It seems fairly difficult to make byindex O(1), and
simultaneously also make insertion/deletion better than O(n).
IOW, the PEP should somehow specify which operations are efficient,
and which ones aren't.
Regards,
|
by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
|
by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
| | |
by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
|
by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
|
by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
|
by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
|
by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
|
by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
| | |
by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
| |
