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stack-installer/ubuntu-20.04.sh procudes talib that causes problems  #10

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@poe28

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@poe28

On a fresh Hetzner Ubuntu 20.04, I have run stack-installer/ubuntu-20.04.sh.
After that, I cannot import talib (and neither can jesse import it):

$ python3
Python 3.8.10 (default, Nov 26 2021, 20:14:08) 
[GCC 9.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import talib
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/till/.local/lib/python3.8/site-packages/talib/__init__.py", line 93, in <module>
    from ._ta_lib import (
  File "talib/_ta_lib.pyx", line 1, in init talib._ta_lib
ValueError: numpy.ndarray size changed, may indicate binary incompatibility. Expected 96 from C header, got 88 from PyObject

But a pip3 uninstall TA-lib; pip3 install TA-lib solves the problem, and you get _ta_lib.cpython-38-x86_64-linux-gnu.soas well. So it seems that there is no need to compile it from sources.

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