Python: Add a number to each element in a given list of numbers
Python List: Exercise - 174 with Solution
Write a Python program to add a number to each element in a given list of numbers.
Sample Solution:
Python Code:
def add_val_to_list(lst, add_val):
result = lst
result = [x+add_val for x in result]
return result
nums = [3,8,9,4,5,0,5,0,3]
print("Original lists:")
print(nums)
add_val = 3
print("\nAdd",add_val,"to each element in the said list:")
print(add_val_to_list(nums, add_val))
nums = [3.2,8,9.9,4.2,5,0.1,5,3.11,0]
print("\nOriginal lists:")
print(nums)
add_val = .51
print("\nAdd",add_val,"to each element in the said list:")
print(add_val_to_list(nums, add_val))
Sample Output:
Original lists: [3, 8, 9, 4, 5, 0, 5, 0, 3] Add 3 to each element in the said list: [6, 11, 12, 7, 8, 3, 8, 3, 6] Original lists: [3.2, 8, 9.9, 4.2, 5, 0.1, 5, 3.11, 0] Add 0.51 to each element in the said list: [3.71, 8.51, 10.41, 4.71, 5.51, 0.61, 5.51, 3.62, 0.51]
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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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