1
 
2
get_python3() {
3
  # Search for python3
4
  python=$(which python3 2>/dev/null)
5
 
6
  # If not found, search for python
7
  if [ -z "$python" ]; then
8
    python=$(which python 2>/dev/null)
9
    if [ -n "$python" ]; then
10
      local python_version=$($python -V 2>&1 | head -n 1 | cut -d ' ' -f 2- | cut -d '.' -f1)
11
      if [ "$python_version" != "3" ]; then
12
        unset python
13
      fi
14
    fi
15
  fi
16
 
17
  if [ -z "$python" ]; then
18
    return
19
  fi
20
  echo "$python"
21
}