Space in path name causes installer to fail

**1. Please specify the following:**
- OS: Windows
- Shell CMD

- [ ] **I have reviewed the troubleshooting tips described [here]() and they do not solve my problem**

**2. Description**
The bundled installer is failing on my system due to a space in the path name.

```
c:\My Git Files>.\aws-elastic-beanstalk-cli-setup\scripts\bundled_installer

c:\My Git Files>Powershell.exe -executionpolicy remotesigned -File "c:\My Git Files\aws-elastic-beanstalk-cli-setup\scripts\\bundled_installer.ps1"

==============================================
I. Installing Python
==============================================
C:\My : The term 'C:\My' is not recognized as the name of a cmdlet, function,
script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is
correct and try again.
At line:1 char:1
+ C:\My Git Files\aws-elastic-beanstalk-cli ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : ObjectNotFound: (C:\My:String) [], CommandNotFoundException
+ FullyQualifiedErrorId : CommandNotFoundException

Exiting due to failure
```

Start with scripts/bundled_installer.ps1 and the bundled_installer entry point referenced in the report. Reproduce the Windows CMD installation from a path containing spaces, then trace the Python installation command that splits at C:\My. Done means the bundled installer completes successfully when its path includes spaces.

Written by the indexing model from the issue text.