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Ignore stderr when checking for Python version

https://review.openstack.org/504171 prevented Python version detection
from failing when python3 is not installed. However, "which python3"
returns a message in stderr when python3 is not there, and this output
can make diskimage-builder get confused when parsing
source-repository-images.

Change-Id: Idb649dc341ede73c39954b0432ef3cacf379ed37

Javier Pena authored on 2017/09/15 22:55:00
Showing 1 changed files

functions-common index 283a6cf..e53c72d 100644

functions-common

History View file @ 6bd4924

@@ -2081,7 +2081,7 @@ function _get_python_version {
                          local interp=$1
                          local version
                          # disable erroring out here, otherwise if python 3 doesn't exist we fail hard.
                     -    if [[ -x $(which $interp) ]]; then
                     +    if [[ -x $(which $interp 2> /dev/null) ]]; then
                              version=$($interp -c 'import sys; print("%s.%s" % sys.version_info[0:2])')
                          fi
                          echo ${version}