How to get the longest word in txt file python-CodePudding

article = open("article.txt", encoding="utf-8")
for i in article:
    print(max(i.split(), key=len))

The text is written with line breaks, and it gives me the longest words from each line. How to get the longest word from all of the text?

CodePudding user response：

One approach would be to read the entire text file into a Python string, remove newlines, and then find the largest word:

with open('article.text', 'r') as file:
    data = re.sub(r'\r?\n', '', file.read())

longest_word = max(re.findall(r'\w ', data), key=len)

CodePudding user response：


longest = 0
curr_word = ""
with open("article.txt", encoding="utf-8") as f:
    for line in f:
        for word in line.split(" "):  # Use line-by-line generator to avoid loading large file in memory
            word = word.strip()
            if (wl := len(word)) > longest:  # Python 3.9 , otherwise use 2 lines
                longest = wl
                curr_word = word
print(curr_word)

CodePudding user response：

Instead of iterating through each line, you can get the entire text of the file and then split them using article.readline().split()

article = open("test.txt", encoding="utf-8")
print(max(article.readline().split(), key=len))
article.close()

CodePudding user response：

There are many ways by which you could do that. This would work

with open("article.txt", encoding="utf-8") as article:
    txt =  [word for item in article.readlines() for word in item.split(" ")]
    
biggest_word = sorted(txt, key=lambda word: (-len(word), word), )[0]

Note that I am using a with statement to close the connection to the file when the reading is done, that I use readlines to read the entire file, returing a list of lines, and that I unpack the split items twice to get a flat list of items. The last line of code sorts the list and uses -len(word) to inverse the sorting from ascending to descending.

I hope this is what you are looking for :)

CodePudding user response：

If your file is large enough to fit in memory, you can read all line at once.

file = open("article.txt", encoding="utf-8", mode='r')
all_text = file.read()
longest = max(i.split(), key=len)
print(longest)