Values find a word

Hello so I have to do a program that identifies all of the positions where a word occurs in a list but when I run my program it doesn’t output anything.
Here’s my code :

sentence =("ASK NOT WHAT YOUR CONTRY CAN DO FOR ASK WHAT YOU CAN DO FOR YOUR CONTRY") #This is a list
print (sentence)
text = input("Choose a word from the sentence above")#this prints out some text with an input 
sentence = sentence.split(" ")# This splits the list 
text = text.upper ()# this makes the text in capital letters
def lookfor ():
    if text in sentence:
        for i in sentence:
            value = sentence.index(sentence)
            print ("Your word has been found in the sentence at the position", value + "and", value )


        else:
            print ("The word that you have typed is not found in the sentence.")

Thank you

asked May 25, 2016 at 12:38

To answer your questions, nothing is happening because you aren’t calling the function.

There’s a lot of work remaining on your function, but here are some general tips:

1) Index only finds the first instance of an element in a list

2) You can’t be sure that a word is in your sentence exactly twice

3) Use descriptive variable names. For example, for word in sentence makes a lot more sense intuitively

answered May 25, 2016 at 12:51

You can do something like this:

sentence =("ASK NOT WHAT YOUR CONTRY CAN DO FOR ASK WHAT YOU CAN DO FOR YOUR CONTRY") #This is a list
print (sentence)
text = raw_input("Choose a word from the sentence above: ")#this prints out some text with an input 
sentence = sentence.split(" ")# This splits the list 

text = text.upper ()# this makes the text in capital letters
def lookfor (text):
    indexes = [ idx+1 for word, idx in zip(sentence, range(0,len(sentence))) if text == word ]
    print ("Your word has been found in the sentence at these positions", indexes )

    if not indexes:
         print ("The word that you have typed is not found in the sentence.")

lookfor(text)

Example:

ASK NOT WHAT YOUR CONTRY CAN DO FOR ASK WHAT YOU CAN DO FOR YOUR CONTRY
Choose a word from the sentence above: for
('Your word has been found in the sentence at these positions', [8, 14])

answered May 25, 2016 at 12:54

YOBAYOBA

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Источник

In this post, we are finding a word or substring in the String. The String is a sequence of characters and a class in Java.

To find a word in the string, we are using indexOf() and contains() methods of String class.

The indexOf() method is used to find an index of the specified substring in the present string. It returns a positive integer as an index if substring found else returns -1.

The contains() method is used to check whether a string contains the specified string or not. It returns a boolean value either true or false. If the specified string is found then it returns true, false otherwise.

Time for an Example:

Let’s create an example to find a word in the string. Here, we are using indexOf() method that returns an index of the specified substring. See the example below.

public class Main {
	public static void main(String[] args){
		String str = "This sentance contains find me string";
		System.out.println(str);
		// find word in String
		String find = "find me";
		int i = str.indexOf(find);
		if(i>0)
			System.out.println(str.substring(i, i+find.length()));
		else 
			System.out.println("string not found");
	}
}

This sentance contains find me string
find me

Example 2

Let’s create another example to find a word in the string. Here, we are using the contains() method that returns true, if the specified string is found. See the example below.

public class Main {
	public static void main(String[] args){
		String str = "This sentance contains find me string";
		System.out.println(str);
		// find word in String
		String find = "find me";
		boolean val = str.contains(find);
		if(val)
			System.out.println("String found: "+find);
		else 
			System.out.println("string not found");
	}
}

This sentance contains find me string
String found: find me

Источник

To find a word in a file using Python:

Specify a target word.
Open a file.
Loop through the file line by line.
Check if any line has the target word. If it does, print the line number and end the loop.

For example, let’s check where (if any) the word “test” is in a file called “example.txt”.

word = "test"

with open("example.txt", "r") as file:
    for line_number, line in enumerate(file, start=1):  
        if word in line:
          print(f"Word '{word}' found on line {line_number}")
          break

print("Search completed.")

In my case, the word is found in the second line. So the output is:

Word 'test' found on line 2
Search completed.

(The enumerate(file, start=1) matches each line with an index. Line 1 has an index of 1, line 2 has an index of 2, and so on. This simplifies the loop. Check out this article to learn more about enumerating in Python.)

How to Find the Longest Word in a File Using Python

To find the longest word(s) in a file:

Open a file.
Store the words in memory.
Find the longest word.
Find other possible words that are equally long.

For example, let’s find out the longest words in a file called “example.txt”:

with open("example.txt", "r") as file:
    words = file.read().split()

longest_word = max(words, key=len)
longest_words = [word for word in words if len(word) == len(longest_word)]

print(longest_words)

If you are confused, the max() function:

Loops through the words
Applies len function on each word.
Returns the word with the greatest value returned by the len. In other words, the longest word.

Also, learn more about list comprehensions to create shorthand for loops like the one in the last line.

How to Find and Replace a Word in a File Using Python

To find and replace a word in a file with Python:

Open a file.
Read the file in memory.
Find and replace specific words.
Write the fixed-up data back to the file.

Here is an example:

# Read the file in memory
with open("example.txt", "r") as file:
  data = file.read()

# Replace matches
data = data.replace("test", "banana")

# Write the data back to the file
with open("example.txt", "w") as file:
  file.write(data)

Thanks for reading. Happy coding!

10 replies

mubashir aziz

Posts

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Sunday April 12, 2009
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160

Updated on Dec 21, 2018 at 04:21 AM

Hi,

Suppose your data is from A1 to A100 or onward. Then in B1, copy this formula and drag it down:

=IF(ISERROR(SEARCH("*apple*",A1,1)),"","A ")

Hope, it will help!

Never ashamed to get or give Advise.

Muhammad Mubashir Aziz , Lodhran, Pakistan

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Time for an Example:

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