Convert 2d list to 1d python

import itertools

a = [[1, 2], [3, 4], [5, 6]]
list(itertools.chain.from_iterable(a))

Output:- [1, 2, 3, 4, 5, 6]

Pass 2d array to 1d python

# Create a 2D Numpy Array.
arr = np. array([[0, 1, 2],
[3, 4, 5],
[6, 7, 8]])
# convert 2D array to a 1D array of size 9.
flat_arr = np. reshape(arr, 9)

Similar codes

1 vote329 views2 answers
Python not null
Python
1 vote1.2K views1 answer
Opposite of .isin pandas
Python
0 vote306 views1 answer
1: for python position
Python
1 vote319 views1 answer
Python selenium web scraping example
Python
0 vote321 views1 answer
Python colorbar for circular heatmap
Python
0 vote314 views1 answer
Gui def python
Python
1 vote306 views1 answer
Python sort array by value
Python
3 votes341 views3 answers
Python codes
Python
0 vote318 views1 answer
Installing python 3 to linux
Python
5 votes314 views2 answers
Regular expression to remove space python
Python