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learning python currently and having a bit of a problem. I'm trying to take a line from another subprogram and convert it into separate words that have been stripped of their punctuation besides a few. the output of this program is supposed to be the word and the line numbers it shows up on. Should look like this -> word: [1]
input file:
please. let! this3 work.
I: hope. it works
and don't shut up
Code:
def createWordList(line):
wordList2 =[]
wordList1 = line.split()
cleanWord = ""
for word in wordList1:
if word != " ":
for char in word:
if char in '!,.?":;0123456789':
char = ""
cleanWord += char
print(cleanWord," cleaned")
wordList2.append(cleanWord)
return wordList2
output:
anddon't:[3]
anddon'tshut:[3]
anddon'tshutup:[3]
ihope:[2]
ihopeit:[2]
ihopeitworks:[2]
pleaselet:[1]
pleaseletthis3:[1]
pleaseletthis3work:[1]
I'm unsure what this is caused by but I learned Ada and transitioning to python in a short period of time.
223
asked Oct 26 '12 16:10
findall() method to split a string into words and punctuation, e.g. result = re. findall(r"[\w'\"]+|[,.!?] ", my_str) . The findall() method will split the string on whitespace characters and punctuation and will return a list of the matches.
The simplest approach provided by Python to convert the given list of Sentences into words with separate indices is to use split() method. This method split a string into a list where each word is a list item.
One of the easiest ways to remove punctuation from a string in Python is to use the str. translate() method. The translate() method typically takes a translation table, which we'll do using the . maketrans() method.
Python String split() Method A string can be split into substrings using the split(param) method. This method is part of the string object. The parameter is optional, but you can split on a specific string or character. Given a sentence, the string can be split into words.
Of course, you could also use a regular expression:
>>> import re
>>> s = """please. let! this3 work.
... I: hope. it works
... and don't shut up"""
>>> re.findall(r'[^\s!,.?":;0-9]+', s)
['please', 'let', 'this', 'work', 'I', 'hope', 'it', 'works', 'and', "don't",
'shut', 'up']
You should set cleanWord back to an empty string at the top of each iteration of the outer loop:
def createWordList(line):
wordList2 =[]
wordList1 = line.split()
for word in wordList1:
cleanWord = ""
for char in word:
if char in '!,.?":;0123456789':
char = ""
cleanWord += char
wordList2.append(cleanWord)
return wordList2
Note that I also removed the if word != " ", since after line.split() you will never have spaces.
>>> createWordList('please. let! this3 work.')
['please', 'let', 'this', 'work']
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