ModuleNotFoundError: No module named 'virtualenv'

**1. Please specify the following:**

- OS: Windows 10
- Shell (Bash, PowerShell, Zsh, etc.): cmd

**2. Description**

I executed the following 2 commands (without having Python 3.7.3 installed) in my **Command Prompt** on **Windows 10**:

```
git clone https://github.com/aws/aws-elastic-beanstalk-cli-setup.git
./aws-elastic-beanstalk-cli-setup/scripts/bundled_installer
```

After doing that I received the following error:

```
==============================================
II. Creating self-contained EBCLI installation
==============================================
Installing the EBCLI in C:\Users\bn\.ebcli-virtual-env

******************************************
1. Creating exclusive virtualenv for EBCLI
******************************************
Traceback (most recent call last):
File "c:\program files\python37\lib\runpy.py", line 193, in _run_module_as_main
"__main__", mod_spec)
File "c:\program files\python37\lib\runpy.py", line 85, in _run_code
exec(code, run_globals)
File "C:\dev\env\aws-elastic-beanstalk-cli-setup\scripts\virtualenv\bin\virtualenv.exe\__main__.py", line 5, in
ModuleNotFoundError: No module named 'virtualenv'
Exiting due to failure
```

**Screenshot**


Start with scripts/bundled_installer and the bundled scripts/virtualenv/bin/virtualenv.exe entry point, then reproduce the reported installation on Windows 10 without Python 3.7.3 installed. Done means the self-contained EBCLI installation completes without the ModuleNotFoundError.

Written by the indexing model from the issue text.