NumPy: Encode all the elements of a given array in cp500 and decode it again
NumPy String: Exercise-6 with Solution
Write a NumPy program to encode all the elements of a given array in cp500 and decode it again.
Sample Solution:-
Python Code:
import numpy as np
x = np.array(['python exercises', 'PHP', 'java', 'C++'], dtype=np.str)
print("Original Array:")
print(x)
encoded_char = np.char.encode(x, 'cp500')
decoded_char = np.char.decode(encoded_char,'cp500')
print("\nencoded =", encoded_char)
print("decoded =", decoded_char)
Sample Input:
(['python exercises', 'PHP', 'java', 'C++'], dtype=np.str)
Sample Output:
encoded = [b'\x97\xa8\xa3\x88\x96\[email protected]\x85\xa7\x85\x99\x83\x89\xa2\x85\xa2' b'\xd7\xc8\xd7' b'\x91\x81\xa5\x81' b'\xc3NN'] decoded = ['python exercises' 'PHP' 'java' 'C++']
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
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