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Python: Read a string and interpreting the string as an array of machine values

Python: Array Exercise-22 with Solution

Write a Python program to read a string and interpreting the string as an array of machine values.

Sample Solution:

Python Code:

from array import array
import binascii
array1 = array('i', [7, 8, 9, 10])
print('array1:', array1)
as_bytes = array1.tobytes()
print('Bytes:', binascii.hexlify(as_bytes))
array2 = array('i')
array2.frombytes(as_bytes)
print('array2:', array2)

Sample Output: 

array1: array('i', [7, 8, 9, 10])                                                                             
Bytes: b'0700000008000000090000000a000000'                                                                    
array2: array('i', [7, 8, 9, 10])

Flowchart:

Flowchart: Read a string and interpreting the string as an array of machine values

Python Code Editor:

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Previous: Write a Python program to get the array size of types unsigned integer and float.
Next: Write a Python program to remove all duplicate elements from a given array and returns a new array.

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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