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Ethereum: Error in heroku [regex._regex_core.error: bad escape \d at position 7] when using python-binance

13 February، 2025 CRYPTOCURRENCY

Heroku Error: Binance Trade Bot Upload Issue with Python-Binance

As a developer of automated trading bots using the Binance API, it is frustrating to encounter issues when trying to deploy your code to different platforms. In this article, we will delve into the error you are making and offer solutions to help you fix it.

Error:

The issue is caused by an incorrect regex pattern used in your Python-Binance client code. Specifically, the line regex._regex_core.error: bad escape \d at position 7 indicates that there is a problem with one of the characters in the regular expression used to handle errors.

Background information:

  • Heroku is a cloud platform that provides a managed environment for deploying applications.
  • Python-Binance is an API client library that allows you to interact with the Binance exchange API using Python code.
  • The exception “regex._regex_core.error” usually indicates that there is a problem with invalid characters in your regular expression.

Solution:

Step 1: Review and fix your regular expression pattern

In your Python-Binance client code, make sure that you have properly stripped out all special characters in your regular expression pattern. Here are some suggestions for improving your regular expression pattern.

import



Ethereum: Error in heroku [regex._regex_core.error: bad escape \d at position 7] when using python-binance


Assuming this is your function to create a Binance API client object:
def create_binance_client():

… (the rest of the code remains the same)
error_regex = r"Invalid input: .+\\d$"
return re.compile(error_regex)
client = create_binance_client()

Step 2: Test your code

After making these changes, test your code to make sure it works as expected. You can do this as follows:

  • Create a new file (e.g. "test.py") and add the following code:

import pytest
from binance.customer import Customer
from datetime import datetime
customer = create_binance_customer()

Define some sample data
data = ["Hello, world!", "This is invalid input", "123"]
for item data:

Try to execute a Binance API request using this item as an argument.
try:
client.get_account_balance(symbol = "BTCUSDT")
print(f"Error: {item} was successful.")
except re.error as e:
print(f"Error: {e}. Suppressing error message for now.")

Run tests
if __name__ == "__main__":
pytest.main()

  • Save the file (e.g. test.py) and execute it using Python:

python -m pytest test_test.py

This should output a blank console, indicating that the code is running successfully.

Step 3. Upload your code to Heroku

Once you have tested your code, you can upload it to Heroku. Here is a step-by-step guide.

  • Log in to your Heroku account and go to your dashboard.
  • Click the “New Release” or “Deploy to Heroku” button.
  • In the project settings, select the Python environment (it should be set to use the python interpreter).
  • Create a new release with the desired name, description, and any additional information.
  • Upload your code by clicking the upload button.

Bottom Line:

In this article, we have shown you how to identify and fix the Heroku error caused by incorrect regex patterns using Python-Binance. By following these steps, you should be able to resolve the issue and successfully deploy your Binance trading bot to Heroku. If you encounter any further issues or need additional assistance, don’t hesitate to reach out for help.

Additional Resources:

  • Heroku API Documentation
  • Python-Binance API Documentation

By following these steps and tips, you will be able to overcome the error in your code and successfully deploy your Binance trading bot to Heroku.

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