python - Python 代码可以包含在 NetLogo 代码的主体中吗？

Question

如标题所示，我正在寻找一种将 Python 代码嵌入到 NetLogo 中的方法。到目前为止，我已经找到了 NetLogo Python扩展，但据我了解，此扩展仅在下面的 NetLogo 提示符下运行(您放置 Observer/Turtle/等命令的位置)，因此更像是一个内置解释器。

我的问题是是否有办法，使用这个扩展或其他方式，将 Python 代码嵌入到 NetLogo 项目的主体中，例如:

; This is an extract of some method/subroutine
  print global-peopleNum

  (py:run
    "print('hello')"
  )

  set-patch-size 20
; other regular NetLogo code

因此它类似于编译代码而不是解释代码。

Answer 1

您可以使用 Python 扩展将 Python 代码直接嵌入到 NetLogo 代码中，它不能仅通过命令中心使用。查看Python Basic Example和 Python Flocking Clusters模型库中 NetLogo 附带的模型。

这是 Python 基本示例模型中的代码:

extensions [ py ]

to setup ; Here we setup the connection to python and import a few libraries
  py:setup py:python
  py:run "import math"
  py:run "import sys"
  py:run "import os"
  reset-ticks
end

to go ; make sure everything is ready to go!
  py:run "print('go!')"
end

to get-sys-info ; Here we use the `sys` package in python to output some system info
  output-print (word "Python directory: " (py:runresult "sys.prefix"))
  output-print (word "Platform: " (py:runresult "sys.platform"))
  output-print (word "Python copyright: " (py:runresult "sys.copyright"))
  output-print ""
end

to gcd ; Use the `math` package's built-in gcd method to calculate the gcd(a,b)
  py:set "a" a
  py:set "b" b
  let result py:runresult "math.gcd(a, b)"
  output-print (word "Greatest common divisor of " a " and " b " is: " result)
  output-print ""
end

to get-home-directory ; Use the `os` package to get the home directory of the system
  let home-dir py:runresult "os.environ['HOME']"
  output-print (word "Current home directory is: " home-dir)
  output-print ""
end

to join-strings ; join some strings in python
  let result joined-strings
  output-print (word "Here they are joined: " result)
  output-print ""
end

to-report joined-strings ; helper procedure to join strings using a delimiter
  py:set "delim" delimiter
  py:set "list" read-from-string string-list
  report py:runresult "delim.join(list)"
end

to to-upper-case ; upper case some Strings in Python
  let result joined-strings
  py:set "result" result
  set result py:runresult "result.upper()"
  output-print (word "Here they are in upper case: " result)
  output-print ""
end