Convert matrix with a string inside to a list. Python

Question

Given a matrix with string and empty cells inside (name) print(name)

[]
['Puchkin A.']
[]
['Kudryashova V.']
[]

How to convert this matrix into a list, approximately:

[[], ['Puchkin A.'], [], ['Kudryashova V.'], []]

Your input does not look like valid. Please double check. Is something like this: `inputs = "[] ['Puchkin A.'] ['Kudryashova V.'], [] " Or ? — Daniel Hao
– Daniel Hao, Commented Aug 6, 2021 at 10:56
So you dont want the middle list from the string? E.g. [[], ['Puchkin A.'], [], ['Kudryashova V.'], []] — Cow
– Cow, Commented Aug 6, 2021 at 10:57
@Mr.Dandomi Please add the exact input you have so we can give you a correct answer, if it's not a string, then what is it? Please provide an example. — Cow
– Cow, Commented Aug 6, 2021 at 11:15

Albaraa Ahmed · Accepted Answer · 2022-06-14 19:38:35Z

1

You could use numpy's built in function matrix() and then use tolist()

Here's an example:

import numpy as np
matrix = [[],
['Puchkin A.'],
[],
['Kudryashova V.'],
[]]
print((np.matrix(matrix)).tolist())

answered Aug 6, 2021 at 11:17

Albaraa Ahmed

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2 Comments

pastebin.com/dZyhLm7Y Look at the 68th line A regular expression creates a matrix with string inside

raise ValueError("matrix must be 2-dimensional") ValueError: matrix must be 2-dimensional pastebin.com/iWp6MGQX