NumPy: Split a given text into lines and split the single line into array values

Last update on May 28 2022 12:53:00 (UTC/GMT +8 hours)

NumPy String: Exercise-22 with Solution

Write a NumPy program to split a given text into lines and split the single line into array values.

Sample text:
01 V Debby Pramod
02 V Artemiy Ellie
03 V Baptist Kamal
04 V Lavanya Davide
05 V Fulton Antwan
06 V Euanthe Sandeep
07 V Endzela Sanda
08 V Victoire Waman
09 V Briar Nur
10 V Rose Lykos

Sample Solution:

Python Code:

import numpy as np 
student = """01	V	Debby Pramod
02	V	Artemiy Ellie
03	V	Baptist Kamal
04	V	Lavanya Davide
05	V	Fulton Antwan
06	V	Euanthe Sandeep
07	V	Endzela Sanda
08	V	Victoire Waman
09	V	Briar Nur
10	V	Rose Lykos"""

print("Original text:") 
print(student)
text_lines = student.splitlines()
text_lines = [r.split('\t') for r in text_lines]
result = np.array(text_lines, dtype=np.str)
print("\nArray from the said text:")
print(result)

Sample Output:

Original text:
01	V	Debby Pramod
02	V	Artemiy Ellie
03	V	Baptist Kamal
04	V	Lavanya Davide
05	V	Fulton Antwan
06	V	Euanthe Sandeep
07	V	Endzela Sanda
08	V	Victoire Waman
09	V	Briar Nur
10	V	Rose Lykos

Array from the said text:
[['01' 'V' 'Debby Pramod']
 ['02' 'V' 'Artemiy Ellie']
 ['03' 'V' 'Baptist Kamal']
 ['04' 'V' 'Lavanya Davide']
 ['05' 'V' 'Fulton Antwan']
 ['06' 'V' 'Euanthe Sandeep']
 ['07' 'V' 'Endzela Sanda']
 ['08' 'V' 'Victoire Waman']
 ['09' 'V' 'Briar Nur']
 ['10' 'V' 'Rose Lykos']]

Python-Numpy Code Editor:

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Python: Tips of the Day

Find current directory and file's directory:

To get the full path to the directory a Python file is contained in, write this in that file:

import os 
dir_path = os.path.dirname(os.path.realpath(__file__))

(Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the __file__ constant is relative to the current working directory and is not changed by an os.chdir() call.)

To get the current working directory use

import os
cwd = os.getcwd()

Documentation references for the modules, constants and functions used above:

The os and os.path modules.
The __file__ constant
os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
os.path.dirname(path) (returns "the directory name of pathname path")
os.getcwd() (returns "a string representing the current working directory")
os.chdir(path) ("change the current working directory to path")

Ref: https://bit.ly/3fy0R6m