Global variables in python causing UnboundLocalError - python

I keep getting the following error message whenever I run my code:
Attempting to parse Socialblade: https://socialblade.com/youtube/user/aantonop
Got no_of_videos: 325
Internal Server Error: /api/connect_youtube/
Traceback (most recent call last):
File "/Users/test/projects/my-api/api/views.py", line 160, in post
response.update(scraper.collect_creator_data(request.data['youtubeChannelUsername']))
File "/Users/test/projects/my-api/api/scraper.py", line 23, in collect_creator_data
process_socialblade(username)
File "/Users/test/projects/my-api/api/scraper.py", line 68, in process_socialblade
if no_of_subscribers:
UnboundLocalError: local variable 'no_of_subscribers' referenced before assignment
I suspect its due to the use of global variables in my script but not sure how to rectify it. I have set up the global variables to be processed by multiple methods.
How do I fix it? Code below:
from bs4 import BeautifulSoup
from test.settings.base import YOUTUBE_URL, YOUTUBE_API_KEY
from urllib.request import Request, urlopen
import ssl
no_of_videos = 0
no_of_subscribers = 0
no_of_views = 0
avg_views = 0
like_count = 0
dislike_count = 0
channel_id = None
photo = None
description = None
start_date = None
title = None
keywords = None
sb_grade = None
def collect_creator_data(username):
process_socialblade(username)
process_youtube(username)
return {"id": channel_id,
"photo": photo,
"title": title,
"like_count": like_count,
"dislike_count": dislike_count,
"keywords": keywords,
"description": description,
"start_date": start_date,
"no_of_videos": no_of_videos,
"no_of_subscribers": no_of_subscribers,
"no_of_views": no_of_views,
"avg_views": avg_views,
"sb_grade": sb_grade
}
def process_socialblade(username):
socialblade_user_url = 'https://socialblade.com/youtube/user/' + username
context = ssl._create_unverified_context()
print('Attempting to parse Socialblade:', socialblade_user_url)
q = Request(socialblade_user_url)
q.add_header('User-Agent', 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.11 (KHTML, like Gecko) '
'Chrome/23.0.1271.64 Safari/537.11')
q.add_header('Accept', 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8')
q.add_header('Accept-Charset', 'ISO-8859-1,utf-8;q=0.7,*;q=0.3')
q.add_header('Accept-Encoding', 'none')
q.add_header('Accept-Language', 'en-US,en;q=0.8')
q.add_header('Connection', 'keep-alive')
socialblade_user_html = urlopen(q, context=context).read()
if socialblade_user_html:
soup = BeautifulSoup(socialblade_user_html, "html.parser")
youtube_user_top_info_list = soup.findAll('div', attrs={'class': 'YouTubeUserTopInfo'})
for i in youtube_user_top_info_list:
try:
no_of_videos = i.find('span', id='youtube-stats-header-uploads').get_text()
except AttributeError:
pass
if no_of_videos:
print('Got no_of_videos:', no_of_videos)
try:
no_of_subscribers = i.find('span', id='youtube-stats-header-subs').get_text()
except AttributeError:
pass
if no_of_subscribers:
print('Got no_of_subscribers:', no_of_subscribers)
try:
no_of_views = i.find('span', id='youtube-stats-header-views').get_text()
except AttributeError:
pass
if no_of_views:
print('Got no_of_views:', no_of_views)
else:
print('Could not parse Socialblade:', socialblade_user_html)
Should I create global variables in process_socialblade?

Related

how to mock session object and response in python

I have method which uses requests to download content from the url in a document. Below is the test case
#patch.object(Session, 'get')
def test_download_success(mock_req_get):
inputDocument = {"contentUri": "http://test"}
def res():
r = requests.Response()
r.status_code = 200
r.text = "test"
return r
mock_req_get.return_value = res()
output = download(inputDocument)
assert output["rawContent"] == "test"
I am trying to mock the requests session and the get return value but the unittest is not working and it shows an exception at the line
mock_req_get.return_value = res()
def download(document):
queryConnectTimeoutSecond = 5
queryReadTimeoutSecond = 5
url = document['contentUri']
adapter = HTTPAdapter(max_retries=3)
session = requests.Session()
session.mount(url, adapter)
try:
result = session.get(url, timeout=(queryConnectTimeoutSecond, queryReadTimeoutSecond))
document["rawContent"] = result.text
except Exception as err:
logger.error(f"An error ocurred: {err}")
document["error"] = {
"code": 500,
"message": "Internal Server Error",
"details": ["Document Crawler Failed"]
}
return document
I am a complete noob in python programming. Trying to understand if this is the right way to write unittests.

KeyError: 'name' abi error on web3 Python

I'm trying to buy tokens using the swapExactTokensForTokens() Pancakeswap Router function), web3 imported in Python.
Problem 1: I keep getting an abi KeyError: 'name'. Here's my code and error below. I'm not sure how to handle this error.
problem 2: Is it possible to call the abi of a token without hardcoding it like I did below?
Code:
from web3 import Web3
import json
import key
import time
bsc = "https://bsc-dataseed.binance.org/"
web3 = Web3(Web3.HTTPProvider(bsc))
print(web3.isConnected())
print("Block Number: ", web3.eth.blockNumber)
#My wallet address
sender_address = '0x111111111111111111111111111111111111'
#Pancakeswap router address instantiate and ABI code
panRouterContractAddress = '0x10ED43C718714eb63d5aA57B78B54704E256024E'
panAbi = '[{"inputs":[{"internalType":"address","name":"_factory","type":"address"},{"internalType":"address","name":"_WETH","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"WETH","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"tokenA","type":"address"},{"internalType":"address","name":"tokenB","type":"address"},{"internalType":"uint256","name":"amountADesired","type":"uint256"},{"internalType":"uint256","name":"amountBDesired","type":"uint256"},{"internalType":"uint256","name":"amountAMin","type":"uint256"},{"internalType":"uint256","name":"amountBMin","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"addLiquidity","outputs":[{"internalType":"uint256","name":"amountA","type":"uint256"},{"internalType":"uint256","name":"amountB","type":"uint256"},{"internalType":"uint256","name":"liquidity","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amountTokenDesired","type":"uint256"},{"internalType":"uint256","name":"amountTokenMin","type":"uint256"},{"internalType":"uint256","name":"amountETHMin","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"addLiquidityETH","outputs":[{"internalType":"uint256","name":"amountToken","type":"uint256"},{"internalType":"uint256","name":"amountETH","type":"uint256"},{"internalType":"uint256","name":"liquidity","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"factory","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"uint256","name":"reserveIn","type":"uint256"},{"internalType":"uint256","name":"reserveOut","type":"uint256"}],"name":"getAmountIn","outputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"reserveIn","type":"uint256"},{"internalType":"uint256","name":"reserveOut","type":"uint256"}],"name":"getAmountOut","outputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"}],"name":"getAmountsIn","outputs":[{"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"}],"name":"getAmountsOut","outputs":[{"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountA","type":"uint256"},{"internalType":"uint256","name":"reserveA","type":"uint256"},{"internalType":"uint256","name":"reserveB","type":"uint256"}],"name":"quote","outputs":[{"internalType":"uint256","name":"amountB","type":"uint256"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"tokenA","type":"address"},{"internalType":"address","name":"tokenB","type":"address"},{"internalType":"uint256","name":"liquidity","type":"uint256"},{"internalType":"uint256","name":"amountAMin","type":"uint256"},{"internalType":"uint256","name":"amountBMin","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"removeLiquidity","outputs":[{"internalType":"uint256","name":"amountA","type":"uint256"},{"internalType":"uint256","name":"amountB","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"liquidity","type":"uint256"},{"internalType":"uint256","name":"amountTokenMin","type":"uint256"},{"internalType":"uint256","name":"amountETHMin","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"removeLiquidityETH","outputs":[{"internalType":"uint256","name":"amountToken","type":"uint256"},{"internalType":"uint256","name":"amountETH","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"liquidity","type":"uint256"},{"internalType":"uint256","name":"amountTokenMin","type":"uint256"},{"internalType":"uint256","name":"amountETHMin","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"removeLiquidityETHSupportingFeeOnTransferTokens","outputs":[{"internalType":"uint256","name":"amountETH","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"liquidity","type":"uint256"},{"internalType":"uint256","name":"amountTokenMin","type":"uint256"},{"internalType":"uint256","name":"amountETHMin","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"bool","name":"approveMax","type":"bool"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"removeLiquidityETHWithPermit","outputs":[{"internalType":"uint256","name":"amountToken","type":"uint256"},{"internalType":"uint256","name":"amountETH","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"liquidity","type":"uint256"},{"internalType":"uint256","name":"amountTokenMin","type":"uint256"},{"internalType":"uint256","name":"amountETHMin","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"bool","name":"approveMax","type":"bool"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"removeLiquidityETHWithPermitSupportingFeeOnTransferTokens","outputs":[{"internalType":"uint256","name":"amountETH","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"tokenA","type":"address"},{"internalType":"address","name":"tokenB","type":"address"},{"internalType":"uint256","name":"liquidity","type":"uint256"},{"internalType":"uint256","name":"amountAMin","type":"uint256"},{"internalType":"uint256","name":"amountBMin","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"bool","name":"approveMax","type":"bool"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"removeLiquidityWithPermit","outputs":[{"internalType":"uint256","name":"amountA","type":"uint256"},{"internalType":"uint256","name":"amountB","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"swapETHForExactTokens","outputs":[{"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountOutMin","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"swapExactETHForTokens","outputs":[{"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountOutMin","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"swapExactETHForTokensSupportingFeeOnTransferTokens","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOutMin","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"swapExactTokensForETH","outputs":[{"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOutMin","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"swapExactTokensForETHSupportingFeeOnTransferTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOutMin","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"swapExactTokensForTokens","outputs":[{"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOutMin","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"swapExactTokensForTokensSupportingFeeOnTransferTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"uint256","name":"amountInMax","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"swapTokensForExactETH","outputs":[{"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"uint256","name":"amountInMax","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"swapTokensForExactTokens","outputs":[{"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"amountOut"}]'
contract = web3.eth.contract(address=panRouterContractAddress, abi=panAbi)
#Spend token instantiate and ABI
tokenToSpend = web3.toChecksumAddress("0xe9e7CEA3DedcA5984780Bafc599bD69ADd087D56") #Contract address for purchase currency (BUSD)
spendAbi = '[{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"constant":true,"inputs":[],"name":"_decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"_name","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"_symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"burn","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"subtractedValue","type":"uint256"}],"name":"decreaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"getOwner","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"mint","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"renounceOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"}]'
spendTokenContract = web3.eth.contract(tokenToSpend, abi=spendAbi) #Spend token instance
#Contract address of token and amount to purchase
tokenToBuy = web3.toChecksumAddress(input("Enter Token Address to buy: "))
#Input contract address for the token to purchase
amountIn = web3.toWei(input("How much to spend? "), 'ether')
#Amount of purchase currency to spend
#Trade execution (To accomodate fees, use the function: swapExactTokensForTokensSupportingFeeOnTransferTokens)
pancakeswap2_txn = contract.functions.swapExactTokensForTokens(amountIn, 0, [tokenToSpend,tokenToBuy], sender_address, (int(time.time()) + 1000000)).buildTransaction({
'from': sender_address,
'value': amountIn,
'gas': 250000,
'gasPrice': web3.toWei('5','gwei'),
'nonce': web3.eth.get_transaction_count(sender_address),
})
signed_txn = web3.eth.account.sign_transaction(pancakeswap2_txn, private_key=key.private)
tx_token = web3.eth.send_raw_transaction(signed_txn.rawTransaction)
print("Success!: " + web3.toHex(tx_token))
Error:
True
Block Number: 9762322
Enter Token Address to buy: 0x0e09fabb73bd3ade0a17ecc321fd13a19e81ce82
How much BUSD to spend? 1
Traceback (most recent call last):
File "c:/Users/Owner/Documents/BlockchainPy/MyCodes/test.py", line 30, in <module>
pancakeswap2_txn = contract.functions.swapExactTokensForTokens(amountIn, 0, [tokenToSpend,tokenToBuy], sender_address, (int(time.time()) + 1000000)).buildTransaction({
File "C:\Users\Owner\Documents\BlockchainPy\lib\sitepackages\web3\contract.py", line 876, in __call__clone._set_function_info()
File "C:\Users\Owner\Documents\BlockchainPy\lib\sitepackages\web3\contract.py", line 881, in _set_function_info
self.abi = find_matching_fn_abi(
File "C:\Users\Owner\Documents\BlockchainPy\lib\site-packages\web3\_utils\contracts.py", line 127, in find_matching_fn_abi
function_candidates = pipe(abi, name_filter, arg_count_filter, encoding_filter)
File "cytoolz/functoolz.pyx", line 667, in cytoolz.functoolz.pipe
return c_pipe(data, funcs)
File "cytoolz/functoolz.pyx", line 642, in cytoolz.functoolz.c_pipe
data = func(data)
File "C:\Users\Owner\Documents\BlockchainPy\lib\site-packages\web3\_utils\abi.py", line 93, in filter_by_name
return [
File "C:\Users\Owner\Documents\BlockchainPy\lib\sitepackages\web3\_utils\abi.py", line 99, in <listcomp> and abi['name'] == name
KeyError: 'name'

Error shows problem in line 99 in file abi.py with key abi["name"] so I found this file (you have full path in error) and add print() before line 99 to see all abi used in this place
def filter_by_name(name: str, contract_abi: ABI) -> List[Union[ABIFunction, ABIEvent]]:
for abi in contract_abi:
print(abi)
print('---')
# ... rest ...
and it shows me
{'stateMutability': 'payable', 'type': 'amountOut'}
which doesn't have "name": ... and this makes problem.
If you check panAbi = ... then you see this {'stateMutability': ...} at the end.
If I add ie."name": "" in this {'stateMutability': ...} in panAbi then it resolves problem but I don't know what real name it should have.

Problem 2: in general, you don't need to know any ABI, you can ask bscscan to return it for you.
This is the code (use the switch DEBUG to select between testnet and mainnet).
Set your BSC API key in place of bscAPIkey
import requests
import json
def GetABI (Address):
if DEBUG:
url_eth = "https://api-testnet.bscscan.com/api"
headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.76 Safari/537.36'} # This is chrome, you can set whatever browser you like
API_ENDPOINT = url_eth+"?module=contract&action=getabi&address="+str(Address)+"&apikey="+bscAPIkey
resp = requests.get(url = API_ENDPOINT, headers=headers)
else:
url_eth = "https://api.bscscan.com/api"
API_ENDPOINT = url_eth+"?module=contract&action=getabi&address="+str(Address)+"&apikey="+bscAPIkey
resp = requests.get(url = API_ENDPOINT)
res = json.loads(resp.text)
status = int(res['status'])
if status:
response = resp.json()
abi=json.loads(response["result"])
return abi
else:
return False

Here's how i fix it:
contract_abi = json.loads('[{"type":"constructor","stateMutability":"nonpayable","inputs":[{"type":"address","name":"_factory","internalType":"address"},{"type":"address","name":"_WETH","internalType":"address"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"WETH","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"uint256","name":"amountA","internalType":"uint256"},{"type":"uint256","name":"amountB","internalType":"uint256"},{"type":"uint256","name":"liquidity","internalType":"uint256"}],"name":"addLiquidity","inputs":[{"type":"address","name":"tokenA","internalType":"address"},{"type":"address","name":"tokenB","internalType":"address"},{"type":"uint256","name":"amountADesired","internalType":"uint256"},{"type":"uint256","name":"amountBDesired","internalType":"uint256"},{"type":"uint256","name":"amountAMin","internalType":"uint256"},{"type":"uint256","name":"amountBMin","internalType":"uint256"},{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"deadline","internalType":"uint256"}]},{"type":"function","stateMutability":"payable","outputs":[{"type":"uint256","name":"amountToken","internalType":"uint256"},{"type":"uint256","name":"amountETH","internalType":"uint256"},{"type":"uint256","name":"liquidity","internalType":"uint256"}],"name":"addLiquidityETH","inputs":[{"type":"address","name":"token","internalType":"address"},{"type":"uint256","name":"amountTokenDesired","internalType":"uint256"},{"type":"uint256","name":"amountTokenMin","internalType":"uint256"},{"type":"uint256","name":"amountETHMin","internalType":"uint256"},{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"deadline","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"factory","inputs":[]},{"type":"function","stateMutability":"pure","outputs":[{"type":"uint256","name":"amountIn","internalType":"uint256"}],"name":"getAmountIn","inputs":[{"type":"uint256","name":"amountOut","internalType":"uint256"},{"type":"uint256","name":"reserveIn","internalType":"uint256"},{"type":"uint256","name":"reserveOut","internalType":"uint256"}]},{"type":"function","stateMutability":"pure","outputs":[{"type":"uint256","name":"amountOut","internalType":"uint256"}],"name":"getAmountOut","inputs":[{"type":"uint256","name":"amountIn","internalType":"uint256"},{"type":"uint256","name":"reserveIn","internalType":"uint256"},{"type":"uint256","name":"reserveOut","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256[]","name":"amounts","internalType":"uint256[]"}],"name":"getAmountsIn","inputs":[{"type":"uint256","name":"amountOut","internalType":"uint256"},{"type":"address[]","name":"path","internalType":"address[]"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256[]","name":"amounts","internalType":"uint256[]"}],"name":"getAmountsOut","inputs":[{"type":"uint256","name":"amountIn","internalType":"uint256"},{"type":"address[]","name":"path","internalType":"address[]"}]},{"type":"function","stateMutability":"pure","outputs":[{"type":"uint256","name":"amountB","internalType":"uint256"}],"name":"quote","inputs":[{"type":"uint256","name":"amountA","internalType":"uint256"},{"type":"uint256","name":"reserveA","internalType":"uint256"},{"type":"uint256","name":"reserveB","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"uint256","name":"amountA","internalType":"uint256"},{"type":"uint256","name":"amountB","internalType":"uint256"}],"name":"removeLiquidity","inputs":[{"type":"address","name":"tokenA","internalType":"address"},{"type":"address","name":"tokenB","internalType":"address"},{"type":"uint256","name":"liquidity","internalType":"uint256"},{"type":"uint256","name":"amountAMin","internalType":"uint256"},{"type":"uint256","name":"amountBMin","internalType":"uint256"},{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"deadline","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"uint256","name":"amountToken","internalType":"uint256"},{"type":"uint256","name":"amountETH","internalType":"uint256"}],"name":"removeLiquidityETH","inputs":[{"type":"address","name":"token","internalType":"address"},{"type":"uint256","name":"liquidity","internalType":"uint256"},{"type":"uint256","name":"amountTokenMin","internalType":"uint256"},{"type":"uint256","name":"amountETHMin","internalType":"uint256"},{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"deadline","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"uint256","name":"amountETH","internalType":"uint256"}],"name":"removeLiquidityETHSupportingFeeOnTransferTokens","inputs":[{"type":"address","name":"token","internalType":"address"},{"type":"uint256","name":"liquidity","internalType":"uint256"},{"type":"uint256","name":"amountTokenMin","internalType":"uint256"},{"type":"uint256","name":"amountETHMin","internalType":"uint256"},{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"deadline","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"uint256","name":"amountToken","internalType":"uint256"},{"type":"uint256","name":"amountETH","internalType":"uint256"}],"name":"removeLiquidityETHWithPermit","inputs":[{"type":"address","name":"token","internalType":"address"},{"type":"uint256","name":"liquidity","internalType":"uint256"},{"type":"uint256","name":"amountTokenMin","internalType":"uint256"},{"type":"uint256","name":"amountETHMin","internalType":"uint256"},{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"deadline","internalType":"uint256"},{"type":"bool","name":"approveMax","internalType":"bool"},{"type":"uint8","name":"v","internalType":"uint8"},{"type":"bytes32","name":"r","internalType":"bytes32"},{"type":"bytes32","name":"s","internalType":"bytes32"}]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"uint256","name":"amountETH","internalType":"uint256"}],"name":"removeLiquidityETHWithPermitSupportingFeeOnTransferTokens","inputs":[{"type":"address","name":"token","internalType":"address"},{"type":"uint256","name":"liquidity","internalType":"uint256"},{"type":"uint256","name":"amountTokenMin","internalType":"uint256"},{"type":"uint256","name":"amountETHMin","internalType":"uint256"},{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"deadline","internalType":"uint256"},{"type":"bool","name":"approveMax","internalType":"bool"},{"type":"uint8","name":"v","internalType":"uint8"},{"type":"bytes32","name":"r","internalType":"bytes32"},{"type":"bytes32","name":"s","internalType":"bytes32"}]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"uint256","name":"amountA","internalType":"uint256"},{"type":"uint256","name":"amountB","internalType":"uint256"}],"name":"removeLiquidityWithPermit","inputs":[{"type":"address","name":"tokenA","internalType":"address"},{"type":"address","name":"tokenB","internalType":"address"},{"type":"uint256","name":"liquidity","internalType":"uint256"},{"type":"uint256","name":"amountAMin","internalType":"uint256"},{"type":"uint256","name":"amountBMin","internalType":"uint256"},{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"deadline","internalType":"uint256"},{"type":"bool","name":"approveMax","internalType":"bool"},{"type":"uint8","name":"v","internalType":"uint8"},{"type":"bytes32","name":"r","internalType":"bytes32"},{"type":"bytes32","name":"s","internalType":"bytes32"}]},{"type":"function","stateMutability":"payable","outputs":[{"type":"uint256[]","name":"amounts","internalType":"uint256[]"}],"name":"swapETHForExactTokens","inputs":[{"type":"uint256","name":"amountOut","internalType":"uint256"},{"type":"address[]","name":"path","internalType":"address[]"},{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"deadline","internalType":"uint256"}]},{"type":"function","stateMutability":"payable","outputs":[{"type":"uint256[]","name":"amounts","internalType":"uint256[]"}],"name":"swapExactETHForTokens","inputs":[{"type":"uint256","name":"amountOutMin","internalType":"uint256"},{"type":"address[]","name":"path","internalType":"address[]"},{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"deadline","internalType":"uint256"}]},{"type":"function","stateMutability":"payable","outputs":[],"name":"swapExactETHForTokensSupportingFeeOnTransferTokens","inputs":[{"type":"uint256","name":"amountOutMin","internalType":"uint256"},{"type":"address[]","name":"path","internalType":"address[]"},{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"deadline","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"uint256[]","name":"amounts","internalType":"uint256[]"}],"name":"swapExactTokensForETH","inputs":[{"type":"uint256","name":"amountIn","internalType":"uint256"},{"type":"uint256","name":"amountOutMin","internalType":"uint256"},{"type":"address[]","name":"path","internalType":"address[]"},{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"deadline","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"swapExactTokensForETHSupportingFeeOnTransferTokens","inputs":[{"type":"uint256","name":"amountIn","internalType":"uint256"},{"type":"uint256","name":"amountOutMin","internalType":"uint256"},{"type":"address[]","name":"path","internalType":"address[]"},{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"deadline","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"uint256[]","name":"amounts","internalType":"uint256[]"}],"name":"swapExactTokensForTokens","inputs":[{"type":"uint256","name":"amountIn","internalType":"uint256"},{"type":"uint256","name":"amountOutMin","internalType":"uint256"},{"type":"address[]","name":"path","internalType":"address[]"},{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"deadline","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"swapExactTokensForTokensSupportingFeeOnTransferTokens","inputs":[{"type":"uint256","name":"amountIn","internalType":"uint256"},{"type":"uint256","name":"amountOutMin","internalType":"uint256"},{"type":"address[]","name":"path","internalType":"address[]"},{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"deadline","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"uint256[]","name":"amounts","internalType":"uint256[]"}],"name":"swapTokensForExactETH","inputs":[{"type":"uint256","name":"amountOut","internalType":"uint256"},{"type":"uint256","name":"amountInMax","internalType":"uint256"},{"type":"address[]","name":"path","internalType":"address[]"},{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"deadline","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"uint256[]","name":"amounts","internalType":"uint256[]"}],"name":"swapTokensForExactTokens","inputs":[{"type":"uint256","name":"amountOut","internalType":"uint256"},{"type":"uint256","name":"amountInMax","internalType":"uint256"},{"type":"address[]","name":"path","internalType":"address[]"},{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"deadline","internalType":"uint256"}]},{"type":"receive","stateMutability":"payable"}]')
# Every entry in ABI must have "name" attribute! Otherwise web3.py will fail when you call contract.functions.swapExactETHForTokens(1, [my_wallet_address], my_wallet_address, deadline)
i : int = 0
for entry in contract_abi:
if 'name' not in entry:
entry['name'] = f"dummy_name_{i}"
i = i+1

AttributeError: 'dict' object has no attribute 'decode'

I am trying to run a service even when API link is down but I keep getting the following error:
AttributeError: 'dict' object has no attribute 'decode'.
How can I solve this problem? Thank you
*#app.route('/test_api')
def test_api():
ipno = "192.168.0.120"
port = "8060"
url_time = 'https://{}:{}/time/'.format(ipno, port)
url_member = 'https://{}:{}/member/'.format(ipno, port)
url_state = 'https://{}:{}/state/'.format(ipno, port)
try:
r_time = _session.get(url_time).content
r_member = _session.get(url_member).content
r_state = _session.get(url_state).content
except requests.exceptions.ConnectionError:
r_uptime = {
"uptime": "OFF"
}.decode(utf-8)
r_member ={
"groupCount": "OFF",
}.decode(utf-8)
r_state={ "state": "OFF"
}.decode(utf-8)
return render_template('test_api.html', time = json.loads(r_time), member=json.loads(r_member), state=json.loads(r_state))*

Your code seems to have lots of errors.
First, you are using different names for same variable: r_time and r_uptime
Second, you are using different types for r_xxx values: strings in try and dict in except clause. I think, following code will better suite your needs:
import json.decoder
...
try:
r_uptime = json.loads(_session.get(url_time).content)
r_member = json.loads(_session.get(url_member).content)
r_state = json.loads(_session.get(url_state).content)
except (json.decoder.JSONDecodeError, requests.exceptions.ConnectionError) as ex:
r_uptime = {"uptime": "OFF"}
r_member = {"groupCount": "OFF"}
r_state = {"state": "OFF"}
return render_template('test_api.html', time = r_uptime, member=r_member, state=r_state)

Function not getting executed in python

I have 2 functions(recharge_list and sms_list) in my below Server() class
import os
import json
import requests
import cherrypy
import ConfigParser
from bs4 import BeautifulSoup
class Server():
#cherrypy.expose
def index(self):
return "Seems Like You're Lost :D"
#cherrypy.expose
def recharge_list(self,carrier, state):
details_array=[]
small_details_array=[]
price_cell_array=[]
lst = []
url = "link{}/{}".format(carrier,state)
try:
if self.t_arr.get(url) is not None:
return json.dumps({'data': self.t_arr[url]})
except AttributeError:
self.t_arr = {}
r = requests.get(url)
data = r.text
soup = BeautifulSoup(data,"html.parser")
table = soup.find('table',{'class':'table'})
s=""
detailtext = table.findAll('div',{'class':'detailtext'})
for det in detailtext:
details_array.append(det.text)
smalldetails = table.findAll('div',{'style':'padding-top:5px'})
for smallDet in smalldetails:
small_details_array.append(smallDet.text);
price_cells = table.findAll('td', {'class': 'pricecell'})
for price_cell in price_cells:
price_cell_array.append(price_cell.text)
for i in range(len(details_array)):
d_arr = {}
d_arr['detail']=details_array[i]
temp = small_details_array[i].split('\n')
d_arr['talktime'] = temp[1]
d_arr['keyword']=temp[3]
tempnew = price_cell_array[i].split('\n')
d_arr['price'] = tempnew[1]
d_arr['validity'] = tempnew[3]
# global list
lst.append(d_arr)
self.t_arr[url] = lst
return json.dumps({'data': self.t_arr[url]})
#cherrypy.expose
def sms_list(self,carrier, state):
details_array=[]
price_cell_array=[]
lst = []
url = "link/{}/{}".format(carrier,state)
try:
if self.t_arr.get(url) is not None:
return json.dumps({'data': self.t_arr[url]})
except AttributeError:
self.t_arr = {}
r = requests.get(url)
data = r.text
soup = BeautifulSoup(data,"html.parser")
table = soup.find('div',{'id':'SMS'})
table2 = table.find('table',{'class':'table'})
print(table2)
s=""
detailtext = table2.findAll('div',{'class':'detailtext'})
for det in detailtext:
details_array.append(det.text)
smalldetails = table2.findAll('div',{'style':'padding-top:5px'})
price_cells = table.findAll('td', {'class': 'pricecell'})
for price_cell in price_cells:
price_cell_array.append(price_cell.text)
for i in range(len(details_array)):
d_arr = {}
d_arr['detail']=details_array[i]
tempnew = price_cell_array[i].split('\n')
d_arr['price'] = tempnew[1]
d_arr['validity'] = tempnew[3]
# global list
lst.append(d_arr)
self.t_arr[url] = lst
return json.dumps({'data': self.t_arr[url]})
if __name__ == '__main__':
''' Setting up the Server with Specified Configuration'''
cherrypy.config.update({'server.socket_host': '0.0.0.0',})
cherrypy.config.update({'server.socket_port': int(os.environ.get('PORT', '5000')),})
cherrypy.quickstart(Server())
The problem is, when I run my server with recharge_list it works, but then I have to terminate my server from terminal and re-start the server to execute the sms_list function.
By my understanding the object once created by Server class is able to execute only the first called function.
What should I edit in my code such that I can execute the functions without terminating the server.

By my understanding the object once created by Server class is able to execute only the first called function.
This is not so. Each time an HTTP request is provided, the web server calls the function associated to the URL of that request.
What should I edit in my code such that I can execute the functions without terminating the server.
In sms_list (and not in recharge_list), replace every instance of t_arr with t_sms_arr.

AttributeError: 'Driver' object has no attribute 'id'

i have a deployment on appengine, im getting this error when i'm tryng to assign a trip
def get(self):
from trips.end_trip import notify_cancelation
"""
GET /2/drivers/report_trip_arrival
> trip_id /custom_id
> device_id
> driver_id
> event_timestamp
< 200 application/json
Changes the trip status to 4, your taxi has arrived
"""
responseJSON = {}
self.response.headers['Content-Type'] = "application/json"
trip_id = self.request.get("trip_id")
custom_trip_id = self.request.get("custom_id")
device_id = self.request.get("device_id")
logging.info("Report arrival")
logging.info(str(trip_id))
logging.info(str(custom_trip_id))
logging.info(str(device_id))
#Get the trip
# fixing
try:
trip = trip_finder.find_trip(trip_id=trip_id, custom_id=custom_trip_id)
except:
trip = None
responseJSON["Status"] = "OK"
return
driver_id = self.request.get('driver_id')
if driver_id:
driver_id = int(driver_id)
if trip.selected_driver.get().id() != driver_id:
responseJSON = {'status': 'OK', 'Staus': 'OK'}
json.dump(responseJSON, self.response.out)
return
if trip:
#deferred.defer(notify_arrival, trip.key.id(), _queue="delivery")
params = {}
params["trip_id"] = trip.key.id()
taskqueue.add(url="/2/delivery/task/notify_arrival", params=params, queue_name="delivery")
last_status = trip.last_status()
#If we are already on status 4, we just return OK
if last_status.id != "4":
#Update the status
#ripStatus(trip=trip.key, id="4", message=trip_statuses["4"], timestamp=now()).put()
trip.change_status("4")
#Alert the passenger
name = trip.traveler_name.split()[0] if trip.traveler_name else ""
message_status = name + ", ha llegado tu taxi :)"
responseJSON["Status"] = "OK"
responseJSON["status"] = "OK"
# if the trip was canceled notify the driver
if last_status.id == "16":
#deferred.defer(notify_cancelation, trip.key.id(), _queue="endtrip")
params = {'trip_id': trip.key.id()}
taskqueue.add(url="/2/trips/task/notify_cancelation", params=params, queue_name="endtrip")
#deferred.defer(notify_cancelation, trip.key.id(), _queue="endtrip")
else:
responseJSON["Status"] = "OK"
responseJSON["status"] = "OK"
self.response.out.write(json.dumps(responseJSON))
This is the full details:
Traceback (most recent call last):
File "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py", line 570, in dispatch
return method(*args, **kwargs)
File "/base/data/home/apps/s~precise-line-762/v-4-4-03.383164018327881359/security/security.py", line 47, in wrapper
return handler(request)
File "/base/data/home/apps/s~precise-line-762/v-4-4-03.383164018327881359/drivers/handlers.py", line 141, in get
if trip.selected_driver.get().id() != driver_id:
File "/base/data/home/runtimes/python27/python27_lib/versions/1/google/appengine/ext/ndb/model.py", line 3640, in __getattr__
return super(Expando, self).__getattribute__(name)
AttributeError: 'Driver' object has no attribute 'id'

You have to pick object's ID from key property.
Looks like your trip.selected_driver is a Key already. If you want to ensure the object exist then call trip.selected_driver.get().key.id()

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