In Python, I can unpack a list into individual variables: >>> name,age,date = ['Bob',20,'2025-1-1'] >>> name 'Bob' >>> age 20 >>> date '2025-1-1' In DolphinDB, I ...

My input is in the form of pairs of comma-separated values, e.g., 805i,9430 3261i,9418 3950i,9415 4581i,4584i 4729i,9421 6785i,9433 8632i,9434 9391i,9393i and I want to read them into a list of pair ...

In python, we can unpack an iterable with a unary * like so: def foo(a, b, c): ... t = (1, 2, 3) foo(*t) In C++, I haven't encountered an equivalent. I'm aware that I could use structured ...

what seems to be the problem with the code l = [1,2,4,5,6,7,8] t = *l i have read that *l gives comma separated single values so the statement should be similar to t = 1,2,3,4,5,6,7 which is a tuple ...

Sets don't have a deterministic order in Python. Why then can you do tuple unpacking on a set in Python? To demonstrate the problem, take the following in CPython 3.10.12: a, b = {"foo", &...

Groovy can unpack lists or tuples with the spread operator (*), which looks like in Python. In Python we can partially unpack a tuple, like this: mytuple = ('a', 'b', 'c', 'd') first, *others = ...

print can nicely unpack a tuple removing brackets and commas, e.g. a = (0, -1, 1) print(*a) produces 0 -1 1. Trying the same with f-strings fails: print(f'{*a}') The closest f-string option I found ...

Can a tuple be unpacked to two tuples? E.g.: countries=("China","Japan","India","England","France") – unpack this tuple to two tuples, first tuple ...

Write a python class that gives the expected output Currently gives ValueError # Can be modified. (Can even be a function or generator class MyClass: def __init__(self): self.count = 0 ...

I am quite used to unpacking sequences in Python like: my_tuple = (1, 2, 3) a, b, c = my_tuple I have noticed that I can also do it with sets: my_set = set((1, 2, 3)) a, b, c = my_set Why can I do ...

In newer versions, ROT_TWO is replaced by SWAP. However, after disassembling the function using dis.dis(), I noticed that SWAP does not appear in the bytecode. Python 3.9.0 >>> import dis >...

I'm implementing an algorithm that requires appending and popping nodes from a Tree in python (in a FIFO way). queue = [] # empty list root = TreeNode() # a standard TreeNode with val, left and ...

Basic Facts Lists are mutable (supporting inserts, appending etc.), Tuples are not Tuples are more memory efficient, and faster to iterate over So it would seem their use-cases are clear. ...

I tried to use list comprehension on a tuple and it worked fine when unpacking, but not when assigning to a single variable. If I run the following code var1, var2, var3 = (i for i in range(3)) var1 =...

I have a list of data (of varying type) that I need to process. It has fixed length and I know which index holds what data, so currently I do something like for x in data[:13]: do_stuff(x) for x in ...