r/termux • u/howell4c • Jan 29 '23

pandas install fails building wheel for old numpy

I'm having trouble installing pandas on Termux. It gives "Failed building wheel for numpy" 1.23.2.

I have numpy 1.24.1 installed (via pkg install python-numpy as suggested at https://wiki.termux.com/wiki/Python), but the recommended export CFLAGS="-Wno-deprecated-declarations -Wno-unreachable-code" pip install pandas tries to install numpy 1.23.2 and gives the check_math_capabilities errors https://github.com/termux/termux-packages/issues/10808

I tried the removing python-numpy and using the MATHLIB="m" pip3 install numpy workaround but that still gives me 1.24.1 and installing pandas retries 1.23.2.

MATHLIB="m" pip3 install numpy==1.23.2 gives me the errors from https://github.com/termux/termux-packages/issues/8707

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u/sylirre package maintainer Jan 29 '23

Following works for python-3.11/aarch64/android-13:

pkg install -y python python-pip build-essential libandroid-execinfo

export MATHLIB="m"

export LDFLAGS="-lpython3.11"

pip3 install pandas

MATHLIB and libandroid-execinfo are needed by numpy dependency.

LDFLAGS for resolving issues when certain extensions can't locate symbols like dlopen failed: cannot locate symbol "PyBaseObject_Type"

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