Files
heroku-buildpack-python/bin/steps/pipenv-python-version
Ed Morley b1690e9f47 Add support for Python 3.9.0 (#1090)
https://pythoninsider.blogspot.com/2020/10/python-390-is-now-available-and-you-can.html
https://www.python.org/downloads/release/python-390/
https://docs.python.org/release/3.9.0/whatsnew/3.9.html

Binaries generated using:

```
make deploy-runtimes RUNTIMES='python-3.9.0' STACKS='heroku-16 heroku-18' ENV_FILE=...
```

Closes @W-7791272@.
2020-10-06 09:35:36 +01:00

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#!/usr/bin/env bash
# Detect Python-version with Pipenv.
if [[ -f $BUILD_DIR/Pipfile ]]; then
if [[ ! -f $BUILD_DIR/runtime.txt ]]; then
if [[ ! -f $BUILD_DIR/Pipfile.lock ]]; then
puts-warn "No 'Pipfile.lock' found! We recommend you commit this into your repository."
fi
if [[ -f $BUILD_DIR/Pipfile.lock ]]; then
set +e
PYTHON=$(jq -r '._meta.requires.python_full_version' "$BUILD_DIR/Pipfile.lock")
if [[ "$PYTHON" != "null" ]]; then
echo "python-$PYTHON" > "$BUILD_DIR/runtime.txt"
fi
set -e
if [[ "$PYTHON" == "null" ]]; then
PYTHON=$(jq -r '._meta.requires.python_version' "$BUILD_DIR/Pipfile.lock")
if [ "$PYTHON" = 2.7 ]; then
echo "$LATEST_27" > "$BUILD_DIR/runtime.txt"
fi
if [ "$PYTHON" = 3.6 ]; then
echo "$LATEST_36" > "$BUILD_DIR/runtime.txt"
fi
if [ "$PYTHON" = 3.7 ]; then
echo "$LATEST_37" > "$BUILD_DIR/runtime.txt"
fi
if [ "$PYTHON" = 3.8 ]; then
echo "$LATEST_38" > "$BUILD_DIR/runtime.txt"
fi
if [ "$PYTHON" = 3.9 ]; then
echo "$LATEST_39" > "$BUILD_DIR/runtime.txt"
fi
fi
fi
fi
fi