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I made a Dash web applications from which an .exe was created by using PyInstaller. The app loads without problems but at calling a function it suddenly stops. The problem seems to lie at the fact that numexpr library is not installed (pandas check _NUMEXPR_INSTALLED fails), eventhough by running the script in python doesn´t generate any problem.

cmd error image

I´m using pandas 1.0.1, PyInstaller 3.6 and Python 3.7.7 I have already tried the following:

  • Downgrading pandas from 1.0.5 to 1.0.1 due to problems with PyInstaller

  • Adding pandas path to the PyInstaller .spec file

    def get_numpy_path():
  import numpy
  numpy_path = numpy.__path__[0]
  return numpy_path
dict_tree = Tree(get_pandas_path(), prefix='pandas', excludes=["*.pyc"])
a.datas += dict_tree
a.binaries = filter(lambda x: 'pandas' not in x[0], a.binaries)
...

  • I Installed numexpr, yet the version was 2.7.1 and in pandas.compat_optional version 2.6.2 is defined, hence it also caused some problems and didn´t work. pip didn´t allow me to install any version of numexpr

Any ideas how to overcome this problem to have a functional .exe? PS: the app also uses numpy, scypi and sklearn.

sr_valderrama
  • 1
  • 2

1 Answers1

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I was able to solve the same problem by

  1. Explicitly installing numexpr (conda install numexpr)
  2. Importing explicitly in the python code: import numexpr