1

Hello everyone when I start this code on PYCHARM looks like no problem. But when I turned this code from python to exe and exe don't start and it says: import error: cannot import name "privtopub" from 'bitcoin'

import random

import requests

import base58

import hashlib

from bitcoin import privtopub, pubtoaddr

# Some code here

while True:

    i += 1

    first_character = "89ABCDEF"
    first_character.encode('utf-8')
    last_15_character = "0123456789ABCDEF"
    last_15_character.encode('utf-8')
    privateKeyByte = ("000000000000000000000000000000000000000000000000" + "".join(
        random.choice(first_character) for _ in range(1)) + "".join(
        random.choice(last_15_character) for _ in range(15))).encode('utf-8')
    privateKey = str(privateKeyByte)[2:-1]
    extendedPrivateKey = ("80" + privateKey)
    extendedPrivateKeyByte = bytearray.fromhex(extendedPrivateKey)
    firstHash = hashlib.sha256()
    firstHash.update(extendedPrivateKeyByte)
    secondHash = hashlib.sha256()
    firstHashFromHex = bytearray.fromhex(firstHash.hexdigest())
    secondHash.update(firstHashFromHex)
    checksum = secondHash.hexdigest()[0:8]
    finalPrivateKey = extendedPrivateKey + checksum
    encodedKey = bytes.fromhex(finalPrivateKey)
    wifKey = base58.b58encode(encodedKey)
    wifKeyString = str(wifKey)[2:-1]
    publicKey = privtopub(privateKey)
    btcAddress = pubtoaddr(publicKey)
  • Last 2 code i mean publicKey = privtopub(privateKey) and btcAddress = pubtoaddr(publicKey) cannot import from bitcoin ? why ?

  • Also i had another problem but i solved it turned my privateKeyByte to byte add this code " .encode('utf-8')." end of the privateKeyByte

  • When i delete this all code and to get to public adress with this way :

    import random
    import bitcoin
    import requests
    
    while True:
        i += 1
        liste_ilk_basamak = ("89ABCDEF")
        liste_son15_basamak = ("0123456789ABCDEF")
        private_key_random = "".join(random.choice(liste_ilk_basamak) for _ in range(1)) + "".join(
            random.choice(liste_son15_basamak) for _ in range(15))
        decoded_private_key = bitcoin.decode_privkey(private_key_random, 'hex')
        valid_private_key = 0 < decoded_private_key < bitcoin.N
        wif_encoded_private_key = bitcoin.encode_privkey(decoded_private_key, 'wif')
        public_key = bitcoin.fast_multiply(bitcoin.G, decoded_private_key)
        adress = bitcoin.pubkey_to_address(public_key)
  • İ Have This Error : AttributeError: Module "bitcoin" has no attribute 'decode_privkey'

I am trying to solve this problem 4 days and I am going to be crazy lost my mind :S help me pls :)

5
  • I think a link to the library that you are using can be helpful, not all the programmers here use python and know all the details about the library. A link can be helpful. May 15 '21 at 23:14
  • I have the same problem with the missing attribute 'decode_privkey'. This attribute existed, but now it's not existing. Strange. This happened with my script "doubleslow": github.com/vstoykovbg/doubleslow . Maybe "bitcoin" was installed with "pip3 install --user bitcoin". Nov 22 '21 at 4:59
  • $ python3 -m pip show bitcoin Name: bitcoin Version: 1.1.42 Summary: Python Bitcoin Tools Home-page: http://github.com/vbuterin/pybitcointools Author: Vitalik Buterin Author-email: vbuterin@gmail.com License: UNKNOWN Location: /home/valentin/.local/lib/python3.6/site-packages Requires: Nov 22 '21 at 5:02
  • Hmm... Strange. The package bitcoin 1.1.42 was released on Jan 11, 2016. Therefore, it was not changed. The attribute 'decode_privkey' should not be missing. Nov 22 '21 at 5:06
  • You can try to run your script with this distro: github.com/vstoykovbg/cryptopup With this distro my script was working without the error about the missing attribute 'decode_privkey'. Now I am with the latest Ubuntu 18 and this error occurs. Nov 22 '21 at 5:07
1

I solved the problem by installing the bitcoin package again.

I was getting this error message with my script doubleslow-base.py:

Traceback (most recent call last):
  File "./doubleslow-base.py", line 136, in <module>
    print_the_secrets(digest256_final)
  File "/home/valentin/python/doubleslow/doubleslow_module.py", line 301, in print_the_secrets
    my_256_bit_secret_WIF = bitcoin.encode_privkey(my_256_bit_secret_HEX,"wif_compressed")
AttributeError: module 'bitcoin' has no attribute 'encode_privkey'

After installing it again it works:

$ pip3 install --user bitcoin
Collecting bitcoin
Installing collected packages: bitcoin
Successfully installed bitcoin-1.1.42

Just in case I installed again all requirements:

$ pip3 install -r requirements.txt

I am not sure why this solved the problem. The script was working last year (when it was released) on the same system.

I was able to run your script with python2 and python3 by installing bitcoin with pip install --user bitcoin (to work with python2) and by defining i:

#!/usr/bin/python3

import random
import bitcoin
import requests

i=0

while True:
    i += 1
    liste_ilk_basamak = ("89ABCDEF")
    liste_son15_basamak = ("0123456789ABCDEF")
    private_key_random = "".join(random.choice(liste_ilk_basamak) for _ in range(1)) + "".join(
        random.choice(liste_son15_basamak) for _ in range(15))
    decoded_private_key = bitcoin.decode_privkey(private_key_random, 'hex')
    valid_private_key = 0 < decoded_private_key < bitcoin.N
    wif_encoded_private_key = bitcoin.encode_privkey(decoded_private_key, 'wif')
    public_key = bitcoin.fast_multiply(bitcoin.G, decoded_private_key)
    adress = bitcoin.pubkey_to_address(public_key)

    print(adress)

The module requests is not being used, so the line import requests can be removed. I added a print to see what happens and to confirm that the script is actually working.

First, I got this error:

$ python3 ./test0.py 
Traceback (most recent call last):
  File "./test0.py", line 9, in <module>
    i += 1
NameError: name 'i' is not defined

Obviously, you forgot to define i.

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