CODEWITHSUNDEEP
pythonmysqlpandasutf-8pymysql
Sterling King
Sterling King

Reputation: 163

PyMySQL Warning: (1366, "Incorrect string value: '\\xF0\\x9F\\x98\\x8D t...')

I'm attempting to import data (tweets and other twitter text information) into a database using Pandas and MySQL. I received the following error:

166: Warning: (1366, "Incorrect string value: '\xF0\x9F\x92\x9C\xF0\x9F...' for column 'text' at row 3") result = self._query(query)

166: Warning: (1366, "Incorrect string value: '\xF0\x9F\x98\x8D t...' for column 'text' at row 5") result = self._query(query)

After a thorough search it seems as if there's something wrong in the way my database columns are set up. I've tried setting the database charset to UTF8 and collating it to utf_unicode_ci but I still receive the same error.

The following is the code that imports the data to the database:

#To create connection and write table into MySQL

engine = create_engine("mysql+pymysql://{user}:{pw}@{lh}/{db}?charset=utf8"
                       .format(user="user",
                               pw="pass",
                               db="blahDB",
                               lh="bla.com/aald/"))

df.to_sql(con=engine, name='US_tweets', if_exists='replace')

The data I'm importing consist of the following data types: 'int64', 'object' and 'datetime64[ns]'. I found out these data types by printing the data to the console with 

print(df['tweett']) >>> returns dtype 'object'

I'd appreciate any help, thanks!

Upvotes: 10

Views: 14535

Answers (2)

Shahzaib Chadhar
Shahzaib Chadhar

Reputation: 327

Change the character set and collation properties of the databases, tables, and columns to use utf8mb4 instead of utf8. docs

# For each database:
ALTER DATABASE database_name CHARACTER SET = utf8mb4 COLLATE = utf8mb4_unicode_ci;
# For each table:
ALTER TABLE table_name CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
# For each column:
ALTER TABLE table_name CHANGE column_name column_name VARCHAR(191) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
# (Don’t blindly copy-paste this! The exact statement depends on the column type, maximum length, and other properties. The above line is just an example for a `VARCHAR` column.)

Upvotes: 1

Rick James
Rick James

Reputation: 142298

You need utf8mb4, not utf8, when connecting to MySQL and in the columns involved.

More python tips: http://mysql.rjweb.org/doc.php/charcoll#python (Except use utf8mb4 in place of utf8. UTF-8 should not be changed.)

A more detailed explanation to this can be found here.

Upvotes: 13

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