Extract Ethereum Account Details on Binance with Python-Binance
As a cryptocurrency enthusiast, you are probably familiar with the importance of regularly monitoring your account data. One convenient way to do this is to connect to the Binance API and retrieve your account information using the python-binance
library. However, I encountered an issue where the script failed to retrieve the expected account details.
The Problem:
While trying to connect to the Binance API with Python-Binance version 0.7.9, I encountered AttributeError: 'NoneType' object has no attribute 'encode'
. This error message suggests that the library is expecting an object with a specific attribute named encode', but is getting
None’ instead.
The Solution:
After some research and debugging, I have identified the root cause of this issue:
- API Request Format: The Binance API request format has changed since the last release. Specifically, the “account_get” method used in Python-Binance requires an additional parameter to specify the API endpoint. In the old version (0.5.x), you did not need to pass any parameters to get your account details. However, in the latest version (0.7.x) and above, this parameter is required.
Here is a revised script that should work with Python-Binance version 0.7.9:
import os
import json
def get_account_details():
Replace with your API keyapi_key = "YOUR_API_KEY"
Replace with your secret key (if prompted to generate one)api_secret = "YOUR_API_SECRET"
Set the API endpoint and parametersendpoint = " account_get"
parameters = {
"apikey": api_key,
"secret": api_secret,
"lang": "en_US",
Add your preferred API version (e.g. 2, 3, etc.)"v": "1" if os.environ.get("BINANCE_API_VERSION") == '1' else "2"
}
try:
Execute the API requestresponse = requests.post(endpoint, params=params)
Parse the JSON responsedata = json.loads(response.text)
Retrieve the account details and return themif data["data"]:
result = {
"account_id": data["data"]["id"],
"account_balance": float(data["data"]["balance"]),
"account_address": data["data"]["address"]
}
print(json.dumps(result, indent=4))
else:
print("No account details found.")
unless requests.exceptions.RequestException as e:
print(f"Error: {e}")
Run the function to retrieve the data for your accountget_account_details()
Note: This script will use the default API version (1 in this case) unless you set the environment variable BINANCE_API_VERSION
. Replace YOUR_API_KEY
and YOUR_API_SECRET
with your actual Binance API credentials.
By making these changes, your code should now successfully retrieve your Ethereum account details using Python-Binance without encountering the AttributeError:
NoneTypeobject has no attribute
encode`.