Python: Split a string into strings if there is a space in the string, otherwise split on commas, otherwise the list of lowercase letters with odd order
Python Programming Puzzles: Exercise-19 with Solution
Write a Python program to split a given string (s) into strings if there is a space in the string, otherwise split on commas if there is a comma, otherwise return the list of lowercase letters with odd order (order of a = 0, b = 1, etc.)
Input: a b c d Split the said string into strings if there is a space in the string, otherwise split on commas if there is a comma, Output: ['a', 'b', 'c', 'd'] Input: a,b,c,d Split the said string into strings if there is a space in the string, otherwise split on commas if there is a comma, Output: ['a', 'b', 'c', 'd'] Input: abcd Split the said string into strings if there is a space in the string, otherwise split on commas if there is a comma, Output: ['b', 'd']
Pictorial Presentation:
Sample Solution:
Python Code:
#License: https://bit.ly/3oLErEI
def test(s):
if " " in s:
return s.split(" ")
if "," in s:
return s.split(",")
return [c for c in s if c.islower() and ord(c) % 2 == 0]
strs = "a b c d"
print("Original string:")
print(strs)
print("Split the said string into strings if there is a space in the string, \notherwise split on commas if there is a comma, \notherwise return the list of lowercase letters with odd order:")
print(test(strs))
strs = "a,b,c,d"
print("\nOriginal string:")
print(strs)
print("Split the said string into strings if there is a space in the string, \notherwise split on commas if there is a comma, \notherwise return the list of lowercase letters with odd order:")
print(test(strs))
strs = "abcd"
print("\nOriginal string:")
print(strs)
print("Split the said string into strings if there is a space in the string, \notherwise split on commas if there is a comma, \notherwise return the list of lowercase letters with odd order:")
print(test(strs))
Sample Output:
Original string: a b c d Split the said string into strings if there is a space in the string, otherwise split on commas if there is a comma, otherwise return the list of lowercase letters with odd order: ['a', 'b', 'c', 'd'] Original string: a,b,c,d Split the said string into strings if there is a space in the string, otherwise split on commas if there is a comma, otherwise return the list of lowercase letters with odd order: ['a', 'b', 'c', 'd'] Original string: abcd Split the said string into strings if there is a space in the string, otherwise split on commas if there is a comma, otherwise return the list of lowercase letters with odd order: ['b', 'd']
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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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