Pandas: Extract word mention someone in tweets using @ from the specified column of a given DataFrame

Last update on May 28 2022 13:02:32 (UTC/GMT +8 hours)

Pandas: String and Regular Expression Exercise-26 with Solution

Write a Pandas program to extract word mention someone in tweets using @ from the specified column of a given DataFrame.

Sample Solution:

Python Code :

import pandas as pd
import re as re
pd.set_option('display.max_columns', 10)
df = pd.DataFrame({
    'tweets': ['@Obama says goodbye','Retweets for @cash','A political endorsement in @Indonesia', '1 dog = many #retweets', 'Just a simple #egg']
    })
print("Original DataFrame:")
print(df)
def find_at_word(text):
    word=re.findall(r'(?<[email protected])\w+',text)
    return " ".join(word)

df['at_word']=df['tweets'].apply(lambda x: find_at_word(x))
print("\Extracting @word from dataframe columns:")
print(df)

Sample Output:

Original DataFrame:
                                  tweets
0                    @Obama says goodbye
1                     Retweets for @cash
2  A political endorsement in @Indonesia
3                 1 dog = many #retweets
4                     Just a simple #egg
\Extracting @word from dataframe columns:
                                  tweets    at_word
0                    @Obama says goodbye      Obama
1                     Retweets for @cash       cash
2  A political endorsement in @Indonesia  Indonesia
3                 1 dog = many #retweets           
4                     Just a simple #egg

Python Code Editor:

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Find current directory and file's directory:

To get the full path to the directory a Python file is contained in, write this in that file:

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To get the current working directory use

import os
cwd = os.getcwd()

Documentation references for the modules, constants and functions used above:

The os and os.path modules.
The __file__ constant
os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
os.path.dirname(path) (returns "the directory name of pathname path")
os.getcwd() (returns "a string representing the current working directory")
os.chdir(path) ("change the current working directory to path")

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