Python: Index number of all lower case letters in a given string
Python Basic - 1: Exercise-129 with Solution
Indices of Lowercase Letters
Write a Python program to get the index number of all lower case letters in a given string.
Sample Solution-1:
Python Code:
# Define a function 'test' that returns the indices of lowercase letters in a given text.
def test(text):
# Use a list comprehension to find indices of lowercase letters.
return [x for x in range(len(text)) if text[x].islower()]
# Provide a sample text "Python".
text = "Python"
# Print the original text.
print("Original string:", text)
# Print the indices of all lowercase letters in the sample text using the 'test' function.
print("Indices of all lower case letters of the said string:\n", test(text))
# Provide another sample text "JavaScript".
text = "JavaScript"
# Print the original text.
print("\nOriginal string:", text)
# Print the indices of all lowercase letters in the sample text using the 'test' function.
print("Indices of all lower case letters of the said string:\n", test(text))
# Provide one more sample text "PHP".
text = "PHP"
# Print the original text.
print("\nOriginal string:", text)
# Print the indices of all lowercase letters in the sample text using the 'test' function.
print("Indices of all lower case letters of the said string:\n", test(text))
Sample Output:
Original string: Python Indices of all lower case letters of the said string: [1, 2, 3, 4, 5] Original string: JavaScript Indices of all lower case letters of the said string: [1, 2, 3, 5, 6, 7, 8, 9] Original string: PHP Indices of all lower case letters of the said string: []
Explanation:
Here is a breakdown of the above Python code:
- Test Function (test function):
- The "test()" function is defined to return the indices of lowercase letters in a given text.
- It uses a list comprehension to iterate through the text and find indices where each character is lowercase.
Flowchart:
Sample Solution-2:
Python Code:
# Define a function 'test' that returns the indices of lowercase letters in a given text.
def test(text):
# Use list comprehension with enumerate to find indices of lowercase letters.
return [index for index, element in enumerate(text) if element.islower()]
# Provide a sample text "Python".
text = "Python"
# Print the original text.
print("Original string:", text)
# Print the indices of all lowercase letters in the sample text using the 'test' function.
print("Indices of all lower case letters of the said string:\n", test(text))
# Provide another sample text "JavaScript".
text = "JavaScript"
# Print the original text.
print("\nOriginal string:", text)
# Print the indices of all lowercase letters in the sample text using the 'test' function.
print("Indices of all lower case letters of the said string:\n", test(text))
# Provide one more sample text "PHP".
text = "PHP"
# Print the original text.
print("\nOriginal string:", text)
# Print the indices of all lowercase letters in the sample text using the 'test' function.
print("Indices of all lower case letters of the said string:\n", test(text))
Sample Output:
Original string: Python Indices of all lower case letters of the said string: [1, 2, 3, 4, 5] Original string: JavaScript Indices of all lower case letters of the said string: [1, 2, 3, 5, 6, 7, 8, 9] Original string: PHP Indices of all lower case letters of the said string: []
Explanation:
Here is a breakdown of the above Python code:
- Test Function (test function):
- The "test()" function is defined to return the indices of lowercase letters in a given text.
- It uses a list comprehension to iterate through the text and find indices where each character is lowercase.
Flowchart:
Python Code Editor:
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