Could not install with Python 3.8 in Linux Mint 20.3

Process failed: python3.8 failed (exit code 1). Full command was:["python3.8", "-m", "pip", "download", "--no-clean", "--no-deps", "--no-binary", ":all:", "-d", "/tmp/package-python-build-06340c8911613336d00bcc674a4e58e745844c21a86b4ab0356d6d66eb69", "-i", "https://pypi.python.org/simple", "--build", "/tmp/package-python-build-06340c8911613336d00bcc674a4e58e745844c21a86b4ab0356d6d66eb69/../setup.py", "../setup.py"] {:level=>:error}
Process failed: python3.8 failed (exit code 1). Full command was:["python3.8", "-m", "pip", "download", "--no-clean", "--no-deps", "--no-binary", ":all:", "-d", "/tmp/package-python-build-c05a2d6ff180ab6a3eeb880c41de5d165a245ecd8e6134cdb5e387f4844b", "-i", "https://pypi.python.org/simple", "--build", "/tmp/package-python-build-c05a2d6ff180ab6a3eeb880c41de5d165a245ecd8e6134cdb5e387f4844b/../setup.py", "../setup.py"] {:level=>:error}

My WorkStation
Linux Mint 20.3 x86_64
Python 3.8
fpm 1.14.2

I changed the install_scripts/.package.sh file

```
declare -a outputs=("deb")
declare -a pypacks=("astral" "requests" "tz" "tzlocal" "schedule")
declare -a otherdeps=("python3-pip")
declare -a python_versions=("3.8")

declare -a original_files=(*)

```
```
declare -a outputs=("deb" "rpm" "sh")
declare -a pypacks=("astral" "requests" "tz" "tzlocal" "schedule")
declare -a otherdeps=("python3-pip")
declare -a python_versions=("3.5" "3.6")

```

Start with install_scripts/.package.sh and reproduce the Python 3.8 pip download failure on Linux Mint 20.3 using the command shown in the report. Compare the Python version and package declarations in the two snippets, then confirm the installation succeeds with the intended outputs and dependencies.

Written by the indexing model from the issue text.