import sys
import json
import math
import time
import random
import requests

def round_up_to_decimals(number, decimals):
    factor = 10 ** decimals
    rounded_number = math.ceil(number * factor) / factor
    return rounded_number

def get_tx(txid):
    tx = None
    try:
        url = ""
        if networkname=="bitcoin":
            url = "https://mempool.space/api/tx/" + txid
        elif networkname=="testnet":
            url = "https://mempool.space/testnet/api/tx/" + txid
        else:
            print("Unknow network")
            exit()
        response = requests.get(url)
        if response.status_code == 200:
            tx = response.json()
            return tx
        else:
            return tx
    except Exception as e:
        print(f"An error occurred: {e}")
        return tx

def get_mempool_txids():
    time.sleep(0.01)
    txids = []
    try:
        url = ""
        if networkname=="bitcoin":
            url = "https://mempool.space/api/mempool/txids"
        elif networkname=="testnet":
            url = "https://mempool.space/testnet/api/mempool/txids"
        else:
            print("Unknow network")
            exit()
        response = requests.get(url)
        if response.status_code == 200:
            txids = response.json()
            return txids
    except Exception as e:
        print(f"An error occurred: {e}")
        return txids
        
networkname = "bitcoin"
print("Downloading mempool txids list")
txids = get_mempool_txids()
# Save in to file optional
#print("Saving file....")
#with open("mempooltxids.txt", "w") as file:
#    file.writelines("%s\n" % txid for txid in txids)
if len(txids) == 0:
    print("Error getting mempool TX")
print(f"Total TX on mempool: {len(txids)}")
dust_counter = 0
total_counter = 0
for i in range(0,1000):
    txid = random.choice(txids)
    tx = get_tx(txid)
    if(tx is None):
        print(f"Error")
        dust_percentage = 100 * (round_up_to_decimals(dust_counter/total_counter,4))
        print(f"\nTotal dust tx found {dust_counter} of {total_counter}: %{dust_percentage}")
        exit()
    if(len(tx['vin']) == 1 and len(tx['vout']) == 1 and tx['vout'][0]['value'] < 600):
        dust_counter += 1
    #txids.remove(txid)
    total_counter += 1
    print(".",end="")
    sys.stdout.flush()
dust_percentage = 100 * (round_up_to_decimals(dust_counter/total_counter,2))
print(f"\nTotal dust txs found {dust_counter} of {total_counter}: %{dust_percentage}")

albertobsd:~$ python3 count_dust_tx_mempool.py
Downloading mempool txids list
Saving file....
Total TX on mempool: 564411
...
Total dust txs found 855 of 1000: %85.5

QTY TX : Output amount
1632  : 546
4185  : 294
1470  : 295