Getter method `byte_srt` of `Bytes`

[cusma]

Subject of the issue

Getter method byte_srt of Bytes returns a string containing quotation marks.

Your environment

pyteal: 0.10.1

Steps to reproduce

Bytes('foo').byte_str

Expected behaviour

'foo'

Actual behaviour

"'foo'"

Priority

Very low.

[ahangsu]

Hi, I think this trace back to the implementation in this line: https://github.com/algorand/pyteal/blob/master/pyteal/ast/bytes.py#L49, where escapeStr was called.

The escapeStr was implemented in https://github.com/algorand/pyteal/blob/master/pyteal/util.py, where the function returns string surrounded with double quotes.

I am not too sure of what was the motivation behind the design, but I can look into it and see what can be done. A quick fix for it is to use unescapeStr, which revert escaped-string back.