Replace emoji with text using dictionary

Similar to the comments above, the issue is the split doesn't work on empty strings. My suggestion would be to replace the list comprehension with a loop that iterates over every character, adding either that character or the translation of the emoji if it is present in the emoji dict:

def replace_emoji(tweet):
    result = ''
    for char in tweet:
        result += emoji.get(char, char)
    return result

In the style of your solution you can also replace the split with a casting of the string to a list and instead of joining on ' ' you can join on '' to get the tweet re-joined successfully:

def replace_emoji(tweet):
    return ''.join(emoji.get(x, x) for x in list(tweet))

Using split() will be the most Pythonic way of splitting on a string.

It's also useful to remember that if you use split() on a string that does not have a white-space then string will be returned to you in a list.

Example:

>>> "".split()
['']

>>> "  ".split()
['','']

if you use list then there is a problem,Each words converted to characters and emoji with without with-space will remain as it is which is not good.

Code:-

def replace_emoji(tweet):
    return ''.join(emoji.get(x, x) for x in list(tweet))
print(replace_emoji("If you're a programmer and blocks of text are needed  "))

Output:- If you're a programmerlaugh and blocks of text are neededcry excitedexcitedexcited Best Solution:

You could try using this emoji package. It's primarily used to convert escape sequences into unicode emoji, but as a result it contains an up to date list of emojis. Code:-

from emoji import UNICODE_EMOJI

def is_emoji(s):
    return s in UNICODE_EMOJI

emoji={'': 'excited',  '': 'laugh',  '' : 'cry'}
def replace_emoji(tweet):
    result = ' '
    for char in tweet:
        if is_emoji(char):
            result = result + ' ' + emoji.get(char, char)
        else:
            result += emoji.get(char, char)
    return result

print(replace_emoji("If you're a programmer and blocks of text are needed  "))

Output: If you're a programmer laugh and blocks of text are needed cry excited excited excited