Can someone explain this code?

Question

import numpy as np ar = np.ones((3,2)) print(ar.ndim)

Answer 1

S3R43o3

yes, you can do like that if this is your personal preference.

but is there any benefit? i would say: NO.

> readability lacks

> no advantage in saving anything (space or time complexity)

> not recommended by the PEP8 python style guide: *Compound statements (multiple statements on the same line) are generally discouraged*
https://peps.python.org/pep-0008/

Answer 2

Lidwina Harefa

the code as published is creating errors, since it should be in different lines:

import numpy as np
ar = np.ones((3,2))
print(ar.ndim)

Answer 3

Sure! Let's go over this code line by line:import numpy as np
This line imports the "numpy" library and gives it the name "np" to make it easier to reference later in the code.
ar = np.ones((3,2))
This line creates a new NumPy array using the np.ones() function, which creates an array filled with ones. The argument to np.ones() is a tuple (3, 2) which specifies the shape of the array. In this case, it creates an array with 3 rows and 2 columns.
print(ar.ndim)
This line prints out the number of dimensions of the ar array. In this case, the array ar has 2 dimensions (rows and columns), so ar.ndim will return 2.

So, when you run this code, it should output:2
which is the number of dimensions of the ar array.

Answer 4

Lothar or just write it like this
import numpy as np; arr=np.ones((3,2));print(arr.ndim);
✌️😋

Answer 5

Sure your right well i used this way mostly if i create reverseshells or parsing through commandline, for pentesting. It was just a hint cause like you said its not common used. But beside this its nice to know

Answer 6

And believe me if you use some meterpretershells or some privilege escalation through zsh and the eof didnt work properly it save sooo many time 😁 or if you test some in the pythoncmd . You shouldn't use this in fully programms with 1000 + lines of code but for a fast web scrapping or many hacker stuff its useful