esp-idf/tools/ci/setup_python.sh

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#!/usr/bin/env bash
if [ -z ${PYTHON_VER+x} ]; then
# Use this version of the Python interpreter if it was not defined before.
# 3.6.13 is the default python3 interpreter in esp32-ci-env
# Jobs which doesn't support this version should define PYTHON_VER themselves
PYTHON_VER=3.6.13
fi
if [ -f /opt/pyenv/activate ];
then
source /opt/pyenv/activate
pyenv global $PYTHON_VER || {
echo 'Python' $PYTHON_VER 'is not installed.'
INSTALLED_PY_VERS=$(pyenv versions --bare)
while [ ${#PYTHON_VER} -gt 0 ]
do
echo 'Tring to locate a match for' $PYTHON_VER
for ver in ${INSTALLED_PY_VERS[@]}
do
if [[ $ver == $PYTHON_VER* ]];
then
pyenv global $ver
break 2
fi
done
# Removing last character and trying to find some match.
# For example, if 3.4.8 was selected but isn't installed then it will try to
# find some other installed 3.4.X version, and then some 3.X.X version.
PYTHON_VER=${PYTHON_VER: : -1}
done
}
python --version || {
echo 'No matching Python interpreter is found!'
exit 1
}
elif command -v python -V 1>/dev/null 2>&1;
then
python --version
echo 'No /opt/pyenv/activate exists and Python from path is used.'
else
echo 'No /opt/pyenv/activate exists and no Python interpreter is found!'
exit 1
fi
# add esp-idf local package path to PYTHONPATH so it can be imported directly
export PYTHONPATH="$IDF_PATH/tools:$IDF_PATH/tools/ci/python_packages:$PYTHONPATH"