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Python: Append items from a specified list

Python: Array Exercise-9 with Solution

Write a Python program to append items from a specified list.

Pictorial Presentation:

Python Exercises: Append items from a specified list

Sample Solution:

Python Code :

from array import *
num_list = [1, 2, 6, -8]
array_num = array('i', [])
print("Items in the list: " + str(num_list))
print("Append items from the list: ")
array_num.fromlist(num_list)
print("Items in the array: "+str(array_num))

Sample Output:

Items in the list: [1, 2, 6, -8]                                       
Append items from the list:                                            
Items in the array: array('i', [1, 2, 6, -8])

Python Code Editor:

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Previous: Write a Python program to convert an array to an array of machine values and return the bytes representation.
Next: Write a Python program to insert a new item before the second element in an existing 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