Binance "send_signed_request" example script doesn't seem to run? - python-3.x

Question

Trying to work through this signed request example script with no success.
I notice both "http_method" and "params" in "def send_signed_request" are both greyed out to indicate unused code.
I have tried to add the params to the request as below, but that's not going to solve the unused code issue, both are still showing as unused code.
response = send_signed_request('POST', '/sapi/v1/margin/loan', {"asset": "", "isIsolated": "TRUE", "symbol": "", "amount": ""} )
print(response)
I'm just learning Python and maybe missing some assumed knowledge I guess and have been reading a lot to no avail before posting.
I read somewhere that Binance are seeing lots of traders spending hours trying to solve signature authentication as I am, and maybe this will help others in the same situation.
thx in advance to anyone that takes a look.
Just to clarify the script didn't come from Binance and I would have to dig for the link if anyone wants it.
import hmac
import time
import hashlib
import requests
from urllib.parse import urlencode
KEY = ''
SECRET = ''
BASE_URL = 'https://sapi.binance.com' # production base url
#BASE_URL = 'https://testnet.binancefuture.com' # testnet base url
''' ====== begin of functions, you don't need to touch ====== '''
def hashing(query_string):
return hmac.new(SECRET.encode('utf-8'), query_string.encode('utf-8'), hashlib.sha256).hexdigest()
def get_timestamp():
return int(time.time() * 1000)
def dispatch_request(http_method):
session = requests.Session()
session.headers.update({
'Content-Type': 'application/json;charset=utf-8',
'X-MBX-APIKEY': KEY
})
return {
'GET': session.get,
'DELETE': session.delete,
'PUT': session.put,
'POST': session.post,
}.get(http_method, 'GET')
# used for sending request requires the signature
def send_signed_request(http_method, url_path, payload={}):
query_string = urlencode(payload)
url = BASE_URL + url_path + '?' + query_string + '&signature=' + hashing(query_string)
params = {'url': url, 'params': {}}
# used for sending public data request
# def send_public_request(url_path, payload={}):
# query_string = urlencode(payload, True)
# url = BASE_URL + url_path
# if query_string:
# url = url + '?' + query_string
# print("{}".format(url))
# response = dispatch_request('GET')(url=url)
# return response.json()
response = send_signed_request('POST', '/sapi/v1/margin/loan', params )
print(response)
Below is a working script if anyone has the same issue
import hmac
import time
import hashlib
import requests
from urllib.parse import urlencode
KEY = ''
SECRET= ''
BASE_URL = 'https://api.binance.com' # production base url
#BASE_URL = 'https://testnet.binancefuture.com' # testnet base url
''' ====== begin of functions, you don't need to touch ====== '''
def hashing(query_string):
return hmac.new(SECRET.encode('utf-8'), query_string.encode('utf-8'), hashlib.sha256).hexdigest()
def get_timestamp():
return int(time.time() * 1000)
def dispatch_request(http_method):
session = requests.Session()
session.headers.update({
'Content-Type': 'application/json;charset=utf-8',
'X-MBX-APIKEY': KEY
})
return {
'GET': session.get,
'DELETE': session.delete,
'PUT': session.put,
'POST': session.post,
}.get(http_method, 'GET')
# used for sending request requires the signature
def send_signed_request(http_method, url_path, payload={}):
query_string = urlencode(payload)
# replace single quote to double quote
query_string = query_string.replace('%27', '%22')
if query_string:
query_string = "{}&timestamp={}".format(query_string, get_timestamp())
else:
query_string = 'timestamp={}'.format(get_timestamp())
url = BASE_URL + url_path + '?' + query_string + '&signature=' + hashing(query_string)
print("{} {}".format(http_method, url))
params = {'url': url, 'params': {}}
response = dispatch_request(http_method)(**params)
print(response)
return response.json()
# used for sending public data request
def send_public_request(url_path, payload={}):
query_string = urlencode(payload, True)
url = BASE_URL + url_path
if query_string:
url = url + '?' + query_string
print("{}".format(url))
response = dispatch_request('GET')(url=url)
return response.json()
#response = send_signed_request('GET', '/api/v3/time')
#print(response)
response = send_signed_request('POST', '/sapi/v1/margin/loan', {"asset": "SHIB", "isIsolated": "TRUE", "symbol": "SHIBUSDT", "amount": "1000.00"} )
print(response)