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31 lines
1.3 KiB
Bash
31 lines
1.3 KiB
Bash
# This file should be sourced, not executed!
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#
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# This is a helper script for detecting Python executables in the PATH. It is intended to be used for determining
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# which Python should be used with idf_tools.py for installing tools and exporting environment variables.
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#
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# 1. The script is looking for python version same or greater than minimal required version on path
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# 2. If required version of python is found it is assigned to environmental variable `ESP_PYTHON`
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# 3. If required version of python is not found, script will fail
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OLDEST_PYTHON_SUPPORTED_MAJOR=3
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OLDEST_PYTHON_SUPPORTED_MINOR=8
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ESP_PYTHON=python
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for p_cmd in python3 python python3.8 python3.9 python3.10 python3.11 python3.12; do
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$p_cmd --version >/dev/null 2>&1 || continue
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echo "Checking \"$p_cmd\" ..."
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$p_cmd -c "import sys; exit(1) if sys.version_info.major < int(\"$OLDEST_PYTHON_SUPPORTED_MAJOR\") else exit(0);" || continue
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$p_cmd -c "import sys; exit(1) if sys.version_info.minor < int(\"$OLDEST_PYTHON_SUPPORTED_MINOR\") else exit(0);" || continue
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ESP_PYTHON=$p_cmd
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break
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done
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$ESP_PYTHON --version 2>/dev/null || {
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echo "Python ${OLDEST_PYTHON_SUPPORTED_MAJOR}.${OLDEST_PYTHON_SUPPORTED_MINOR}+ is not installed! Please see the documentation for how to install it."
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exit 1
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}
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echo "\"$ESP_PYTHON\" has been detected"
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