StringSplitterLimted

# StringSplitterLimted.py
# Author:           Alex Paarfus <rapaarfus139@gmail.com>
# Date:             2018-08-15
#
# Requirements:
#   Prompt user for a string input
#       Assume:
#           Delimiter: <space>
#           Multiple words/phrases
#   Display the total number of characters (before loop)
#   Display the total number of words (after loop)
#   Per-word Stats:
#       Word itself
#       Length of Word
#       NOTE: should probably not include punctuation
#   Must use While loop
#   Cannot use ".split()"
#
# Notes:
#   I know, its a little OTT for the assignment
#   I'm sure its inefficient
#   Too bad, so sad.

# Preface statement
print("===============================================================================================")
print("== This program will accept a sentence (or similar list of words) as an input                ==")
print("== Before iterating through the input, it will print out the total number of characters.     ==")
print("== Next, it will iterate through the input and locate all of the words in the input.         ==")
print("== When a word is found, the program will list the starting and ending positions of the word ==")
print("== as well as the word itself and the length of the word.                                    ==")
print("== Finally, the program will print the total number of words found.                          ==")
print("===============================================================================================")

# Get user input
strInput = input("Enter a sentence: ")

# Check for user input
if strInput:
    # Declare some variables to be used in our loop
    i = 0
    leftpos = 0
    wordCount = 0
    strTmp = ""
    alphas = "abcdefghijklmnopqrstuvwxyz"

    # Display the total number of characters in strInput
    print("The length of the input string is: " + (str(len(strInput))))

    # Iterate through the input, extracting each word
    while (i < len(strInput)):
        # Check to see if charAt(i) is an alphabetic character
        j = 0
        blnAlpha = False
        while (j < len(alphas)):
            if (strInput[i] == alphas[j]):
                # set out Alpha flag to true
                blnAlpha = True
                # break our of the checkAlpha loop
                break
            j += 1
        # If char is an alpha, add it to our temporary string
        if (blnAlpha):
            strTmp += strInput[i]
        else:
            # If strTmp contains characters, or if at the end of the string
            if ((len(strTmp) > 0) or ((i + 1) >= len(strInput))):
                # Print the word
                print("Word     = " + strTmp)
                # Print the left and right positions of the word
                print("Leftpos  = " + str(leftpos))
                print("Rightpos = " + str(i))
                # Print the length of the word
                print("Length   = " + str(len(strTmp)))
                # Update the leftpos value to whatever "i" is
                leftpos = i
                # Increment the word count by 1
                wordCount += 1
                # Reset the value of strTmp to an empty string
                strTmp = ""
        # Increment i by 1
        i += 1
    # Print the numbers of words found
    print("Found " + str(wordCount) + " words.")
else:
    # Display the error message for no input
    print("Error: No input.")