以下是Brython文档第一页的最简单示例代码:
<html>
<head>
<script src="../src/Brython3.2.8/brython.js"></script>
</head>
<body onload="brython()">
<script type="text/python">
from browser import document, alert
def echo(ev):
alert(document["zone"].value)
document['mybutton'].bind('click', echo)
</script>
<input id="zone"><button id="mybutton">click !</button>
</body>
</html>
这很好用。
但如果我尝试导入sys:
<html>
<head>
<script src="../src/Brython3.2.8/brython.js"></script>
</head>
<body onload="brython()">
<script type="text/python">
import sys
from browser import document, alert
def echo(ev):
alert(document["zone"].value)
document['mybutton'].bind('click', echo)
</script>
<input id="zone"><button id="mybutton">click !</button>
</body>
</html>
那么HTML将会显示,但是按钮不会有任何作用。
Chrome浏览器的控制台会显示以下错误:
brython.js:6929 XMLHttpRequest cannot load file:///C:/Users/XXXXXXXXX/XXXXXX/src/Brython3.2.8/Lib/sys.py?v=1476283159509. Cross origin requests are only supported for protocol schemes: http, data, chrome, chrome-extension, https, chrome-extension-resource.
$download_module @ brython.js.6929
import_py @ brython.js.6929
exec_module @ brython.js.6929
etc etc
那么,我如何在Brython中导入sys,在Python中如何导入自己的库?
谢谢。