CODEWITHSUNDEEP
pythonpython-3.x
Tamjeed Anees
Tamjeed Anees

Reputation: 81

How to find string from a list of strings with a specific list of characters?

I have a given list of string and a list of characters and I want to check the string with containing a specific character. Here is an example:

Dictionary = ["Hello", "Hi"]
Character = ['e','i']

it must return a "Hello" else empty list

I am comparing a list of characters with a list of strings but it is giving me a type error.

Dictionary = ["Hello", "Hi"]
Character = ['e']
emptystring = ""
def findwords(dictionary,character):
   for i in dictionary,character:
      for j in dictionary:
          if character[i] == dictionary[i][j]:
             return dictionary[i]
          else:
             j+=1
    i+=1
return emptystring

k = findwords(Dictionary,Character)
k

TypeError                                 Traceback (most recent call last)
<ipython-input-49-996912330841> in <module>
----> 1 k = findwords(Dictionary,Character)
      2 k

<ipython-input-48-9e9498ec1a51> in findwords(dictionary, character)
      5     for i in dictionary,character:
      6         for j in dictionary:
----> 7             if str(character[i]) == str(dictionary[i][j]):
      8                 return str(dictionary[i])
      9             else:

TypeError: list indices must be integers or slices, not list

Upvotes: 1

Views: 5319

Answers (2)

bison
bison

Reputation: 747

This might clean up your code a bit, I think it is what you are going for...

Dictionary = ["Hello", "Hi"]
Character = ["e"]


def findwords(dictionary, character):
    for i in dictionary:
        if any(j in i for j in character):
            return i
    return ""

For all matches:

def findwords(dictionary, character):
    matches = []
    for i in dictionary:
        if any(j in i for j in character):
            matches.append(i)
    if matches:
        return ",".join(matches)
    else:
        return ""

It will see if anything in the substring matches your word. If it does, return the word, else ""

findwords(["Hello", "Hi"],["e"])

'Hello'

findwords(["Hello", "Hi"],["k"])

''

For your issue:

TypeError: list indices must be integers or slices, not list

   for i in dictionary,character: <-- I will be list ['Hello', 'Hi']
      for j in dictionary:
          if character[i] == dictionary[i][j]:  <---- you can't do character[i] where i is ['Hello', 'Hi']

Upvotes: 1

Marios Nikolaou
Marios Nikolaou

Reputation: 1336

Check this.

Dictionary = ["Hello", "Hi"]
Character = ['e']

def findwords(dictionary,character):
    tmp = ""
    for i in dictionary:
        #convert string to char list
        str_arr = list(i)
        for j in character:
            #if char is in char list then save it in tmp variable
            #if you want multiple values then use array instead of tmp
            if j in str_arr:
                tmp = i
    return tmp

k = findwords(Dictionary,Character)
print(k)

Upvotes: 1

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