I have a txt file. I have written code that finds the unique words and the number of times each word appears in that file. I now need to figure out how to print the lines that those words apear in as well. How can I go about doing this?
Here is a sample output: Analyze what file: itsy_bitsy_spider.txt
Concordance for file itsy_bitsy_spider.txt itsy : Total Count: 2 Line:1: The ITSY Bitsy spider crawled up the water spout Line:4: and the ITSY Bitsy spider went up the spout again
#this function will get just the unique words without the stop words.
def openFiles(openFile):
for i in openFile:
i = i.strip()
linelist.append(i)
b = i.lower()
thislist = b.split()
for a in thislist:
if a in stopwords:
continue
else:
wordlist.append(a)
#print wordlist
#this dictionary is used to count the number of times each stop
countdict = {}
def countWords(this_list):
for word in this_list:
depunct = word.strip(punctuation)
if depunct in countdict:
countdict[depunct] += 1
else:
countdict[depunct] = 1
from collections import defaultdict
target = 'itsy'
word_summary = defaultdict(list)
with open('itsy.txt', 'r') as f:
lines = f.readlines()
for idx, line in enumerate(lines):
words = [w.strip().lower() for w in line.split()]
for word in words:
word_summary[word].append(idx)
unique_words = len(word_summary.keys())
target_occurence = len(word_summary[target])
line_nums = set(word_summary[target])
print "There are %s unique words." % unique_words
print "There are %s occurences of '%s'" % (target_occurence, target)
print "'%s' is found on lines %s" % (target, ', '.join([str(i+1) for i in line_nums]))
If you parsed the input text file line by line, you could maintain another dictionary that is a word -> List<Line> mapping. ie for each word in a line, you add an entry. Might look something like the following. Bearing in mind I'm not very familiar with python, so there may be syntactic shortcuts I've missed.
eg
countdict = {}
linedict = {}
for line in text_file:
for word in line:
depunct = word.strip(punctuation)
if depunct in countdict:
countdict[depunct] += 1
else:
countdict[depunct] = 1
# add entry for word in the line dict if not there already
if depunct not in linedict:
linedict[depunct] = []
# now add the word -> line entry
linedict[depunct].append(line)
One modification you will probably need to make is to prevent duplicates being added to the linedict if a word appears twice in the line.
The above code assumes that you only want to read the text file once.
openFile = open("test.txt", "r")
words = {}
for line in openFile.readlines():
for word in line.strip().lower().split():
wordDict = words.setdefault(word, { 'count': 0, 'line': set() })
wordDict['count'] += 1
wordDict['line'].add(line)
openFile.close()
print words
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