Add ability to pass agents to python

I think they should be represented as dict-like objects, where keys are agent variables.

For a first pass, they should be read-only.

One tricky thing is keeping them in sync with NetLogo. For instance:

py:set "t" turtle 0
ask turtle 0 [ set color red ]
print py:runresult "t['color']" ;; This will be out of date

I think just not caring is good enough for a first pass, as long as it's clear in the docs. Otherwise, we'd have to track and sync all agent-objects on every call, which sounds awful.

I think they should be represented as dict-like objects, where keys are agent variables.

For a first pass, they should be read-only.

One tricky thing is keeping them in sync with NetLogo. For instance:

py:set "t" turtle 0
ask turtle 0 [ set color red ]
print py:runresult "t['color']" ;; This will be out of date

I think just not caring is good enough for a first pass, as long as it's clear in the docs. Otherwise, we'd have to track and sync all agent-objects on every call, which sounds awful.

Copied from https://github.com/qiemem/PythonExtension/issues/2

Không có tệp hoặc bài kiểm thử nào được nêu tên. Hãy bắt đầu bằng cách lần theo hành vi hiện có của py:set và py:runresult, sau đó xác định cách các biến của agent trở thành các đối tượng Python chỉ-đọc giống dict. Được xem là hoàn tất khi có thể truyền các agent vào Python và tài liệu nêu rõ rằng các giá trị có thể trở nên cũ sau khi NetLogo thay đổi.