Issues with keypairs

[Jaykingamez]

Going through the READ.ME docs, I hit a major roadblock.

Typing this:

from stellar_base.keypair import Keypair
kp = Keypair.random()

GIves me this error:

Traceback (most recent call last):
File "D:/Stellar toybox.py", line 5, in
kp1 = Keypair.deterministic(m,index=1)
File "D:\lib\site-packages\stellar_base\keypair.py", line 35, in deterministic
return cls.from_raw_seed(seed)
File "D:\lib\site-packages\stellar_base\keypair.py", line 53, in from_raw_seed
signing_key = ed25519.SigningKey(raw_seed)
File "D:\lib\site-packages\ed25519\keys.py", line 85, in init
vk_s, sk_s = _ed25519.publickey(sk_s)
MemoryError

Huh? MemoryError?

Ok, so the first method creating Stellar key pair doesn't work for me, let's try the eecond method. It works, very well and...

It comes to here:

kp = Keypair.deterministic(m) #I typed this out without defining language as I wanted it to be in Standard English

Traceback (most recent call last):
File "D:/Stellar toybox.py", line 4, in
kp = Keypair.deterministic(m)
NameError: name 'Keypair' is not defined

Ok so it's not defined, let me scroll down more to see whether anything can help.

kp1 = Keypair.deterministic(m, lang='chinese', index=1)#Same error
kp2 = Keypair.deterministic(m, lang='chinese', index=2) #Same error

Here's my code, I typed it all out as I really wanted to learn how to use the python-base package. (Some errors might be due to my bad typing)

from stellar_base.utils import StellarMnemonic
sm = StellarMnemonic()
m = sm.generate()
kp1 = Keypair.deterministic(m,index=1)
kp2 = Keypair.deterministic(m,index=2)

[bolshoy]

Keypair.random() always works for me. Maybe a problem with ed25519 package (it's compiled from C)?

[overcat]

In the second way, you need import Keypair.

from stellar_base.utils import StellarMnemonic
from stellar_base.keypair import Keypair
sm = StellarMnemonic()
m = sm.generate()
kp1 = Keypair.deterministic(m, index=1)
kp2 = Keypair.deterministic(m, index=2)

[Jaykingamez]

@bolshoy "Maybe a problem with ed25519 package (it's compiled from C)?" I don't think the problem lies here, after all, in the earlier issue I faced, I went to the Stack Overflow site and used Microsoft Visual Studio with build tools to even pip install stellar_base. And one query, when you meant C, you meant C or C++?

@overcat Hmm, I kinda deduce that, but the issue is when I import Keypair

from stellar_base.keypair import Keypair

And type any code related to Keypair underneath it.

Traceback (most recent call last):
File "D:/fuck you.py", line 5, in
kp1 = Keypair.deterministic(m, index=1)
File "D:\lib\site-packages\stellar_base\keypair.py", line 35, in deterministic
return cls.from_raw_seed(seed)
File "D:\lib\site-packages\stellar_base\keypair.py", line 53, in from_raw_seed
signing_key = ed25519.SigningKey(raw_seed)
File "D:\lib\site-packages\ed25519\keys.py", line 85, in init
vk_s, sk_s = _ed25519.publickey(sk_s)
MemoryError

I somehow have memory issues?

[bolshoy]

@Jaykingamez I meant cl.exe. It does look like a platform related issue, because I work on Mac OSX, it's all fine there, and Memory Error is surely a native module related issue.
Hey, looks like people have already experienced the issue with python 3.6.4: warner/python-ed25519#12
What python version are you using?

[Jaykingamez]

@bolshoy Python 3.6.5. Welp, I guess if i really want to learn to develop on Stellar, i have to

1. Get another OS

Or

2. Learn Javascript

[overcat]

@bolshoy Maybe you can try to downgrade to Python 3.5 first, the cases reported have all occurred in Win10 + Python 3.6

[Jaykingamez]

@overcat Downgraded to Python 3.5.0, Numpy not exactly working, receiving this error.

Traceback (most recent call last):
File "D:\lib\site-packages\numpy\core_init_.py", line 16, in
from . import multiarray
ImportError: cannot import name 'multiarray'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "D:/Stellarwhyyoudothis.py", line 1, in
from stellar_base.keypair import Keypair
File "D:\lib\site-packages\stellar_base\keypair.py", line 8, in
from .utils import decode_check, encode_check, StellarMnemonic
File "D:\lib\site-packages\stellar_base\utils.py", line 16, in
import numpy as np
File "D:\lib\site-packages\numpy_init_.py", line 142, in
from . import add_newdocs
File "D:\lib\site-packages\numpy\add_newdocs.py", line 13, in
from numpy.lib import add_newdoc
File "D:\lib\site-packages\numpy\lib_init_.py", line 8, in
from .type_check import *
File "D:\lib\site-packages\numpy\lib\type_check.py", line 11, in
import numpy.core.numeric as nx
File "D:\lib\site-packages\numpy\core_init.py", line 26, in
raise ImportError(msg)
ImportError:
Importing the multiarray numpy extension module failed. Most
likely you are trying to import a failed build of numpy.
If you're working with a numpy git repo, try git clean -xdf (removes all
files not under version control). Otherwise reinstall numpy.

Original error was: cannot import name 'multiarray'

Numpy i'm using came with the stellar_base. Oh and here's the code that triggered this error,

from stellar_base.keypair import Keypair
kp = Keypair.random()

[bolshoy]

@Jaykingamez this is a different problem, again related to python on Windows. See if you have a solution here: numpy/numpy#9272

[manran]

@Jaykingamez
try pip install pure25519 as a workaround at this moment.
check it out here: https://github.com/StellarCN/py-stellar-base/blob/master/stellar_base/keypair.py#L11-L16