Error trying to connect to MySQL db

Using Streamlit
1

Summary

I followed a tutorial on connecting to a MySQL database with streamlit, but am getting the following error: ModuleNotFoundError: No module named ‘MySQLdb’. You need to install the ‘mysqlclient’ package to use this connection.

Steps to reproduce

Follow this tutorial:

Is there any guidance you can give on how to set up the app with the requirements.txt, secrets.toml and the main script? I am able to connect to my database without using the secrets file and by importing mysql.connector. I am having issues when trying to use the requirements, secrets and streamlit though. I am sure it’s user error since I am new to this and python. Thanks!

2

@Timothy_Sedlak ,

Could you please post a code snippet of the code that is failing without any sensitive data on it?

Thanks,

–Carlos

3

Here is my code. Its copied from the streamlit MySQL tutorial.

# streamlit_app.py
import streamlit as st

# Initialize connection.
conn = st.experimental_connection('mysql', type='sql')

# Perform query.
df = conn.query('SELECT * from mytable;', ttl=600)

# Print results.
for row in df.itertuples():
    st.write(f"{row.name} has a :{row.pet}:")

I have this in my requirements file:
pandas
streamlit
mysqlclient==8.0.33
SQLAlchemy==2.0.21

I am getting this error now when running locally:

ModuleNotFoundError: No module named ‘mysqlclient’
Traceback:
File “/home/tsedlak/.local/lib/python3.8/site-packages/streamlit/runtime/scriptrunner/script_runner.py”, line 552, in _run_script
exec(code, module.dict)
File “/mnt/c/mywebapp/Home.py”, line 2, in
import mysqlclient

4

Try adding sqlalchemy and mysql on your imports and try again.

5

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