HTML with Transcrypt script gives missing { before try block error

I am trying to add a javascript file that generated via Transcrypt from Python file.

However, when I add that script to my HTML file, there are some errors appeared in Console and I failed.

The Python file that I used: try.py

def greet():
    name = document.getElementById("Name").value
    if name == "" or name.length == 0 or name == null:
        document.getElementById("groet").innerHTML = '<p><font color="#ff0000">Hello Anonymous, may I know yor name? Please insert it below:</font></p>'
    else:
        document.getElementById("groet").innerHTML = '<p><font color="#00ff00">Hello, '+name+', thank you for introducing you</font></p>'

After that script, I ran the command python3 -m transcrypt -b try.py and a folder called "target" created automatically and it contains a file "try.js".

So, I wrote a HTML file which is a basic sample that shows a greeting message: hello.html

<html lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<script src="__target__/try.js"></script>
</head>
<title>Insert Text</title>
<body onload=try.greet()>

<h2>Hello Demo Name</h2>

<p>
<div id = "groet">...</div>
</p>
<p>Your Name: <input name="name" type="text" maxlength="80" id="Name" value=""/> [Please enter your name]<br><br>
<button onclick=try.greet()>Refresh the greeting!</button>
</p>
</body>
</html>

I am expecting that when I clicked the button or reload the file the greeting message should be placed. However, in console I got two errors:

Uncaught SyntaxError: import declarations may only appear at top level of a module try.js:1:13
Uncaught SyntaxError: missing { before try block hello.html:1:3

So, what is the problem guys?

[EDIT] After the T.J's answer, I updated the html file as following:

'use strict';import{AssertionError,AttributeError,BaseException,DeprecationWarning,Exception,IndexError,IterableError,KeyError,NotImplementedError,RuntimeWarning,StopIteration,UserWarning,ValueError,Warning,__JsIterator__,__PyIterator__,__Terminal__,__add__,__and__,__call__,__class__,__envir__,__eq__,__floordiv__,__ge__,__get__,__getcm__,__getitem__,__getslice__,__getsm__,__gt__,__i__,__iadd__,__iand__,__idiv__,__ijsmod__,__ilshift__,__imatmul__,__imod__,__imul__,__in__,__init__,__ior__,__ipow__,
__irshift__,__isub__,__ixor__,__jsUsePyNext__,__jsmod__,__k__,__kwargtrans__,__le__,__lshift__,__lt__,__matmul__,__mergefields__,__mergekwargtrans__,__mod__,__mul__,__ne__,__neg__,__nest__,__or__,__pow__,__pragma__,__proxy__,__pyUseJsNext__,__rshift__,__setitem__,__setproperty__,__setslice__,__sort__,__specialattrib__,__sub__,__super__,__t__,__terminal__,__truediv__,__withblock__,__xor__,abs,all,any,assert,bool,bytearray,bytes,callable,chr,copy,deepcopy,delattr,dict,dir,divmod,enumerate,filter,float,
getattr,hasattr,input,int,isinstance,issubclass,len,list,map,max,min,object,ord,pow,print,property,py_TypeError,py_iter,py_metatype,py_next,py_reversed,py_typeof,range,repr,round,set,setattr,sorted,str,sum,tuple,zip}from"./org.transcrypt.__runtime__.js";var __name__="__main__";export var greet=function(){var py_name=document.getElementById("Name").value;if(py_name==""||py_name.length==0||py_name==null)document.getElementById("groet").innerHTML='<p><font color="#ff0000">Hello Anonymous, may I know yor name? Please insert it below:</font></p>';
else document.getElementById("groet").innerHTML='<p><font color="#00ff00">Hello, '+py_name+", thank you for introducing you</font></p>"};

//# sourceMappingURL=hello.map

<html lang="en">
  <head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <script type="module">
      import { greet } from "./hello.js";
      document.getElementById("greetButton").onclick=greet();
    </script>
  </head>
  <title>Insert Text</title>
<body>

<h2>Hello Demo Name</h2>

<p>
<div id = "groet">...</div>
</p>
<p>Your Name: <input name="name" type="text" maxlength="80" id="Name" value=""/> [Please enter your name]<br><br>
<button id="greetButton">Refresh the greeting!</button>
</p>

</body>
</html>

Solution

In addition to @T.J. Crowder's answer, I changed the script in html as:

<script type="module">
  import * as hello from "./__target__/hello.js";
  window.hello = hello;
</script>

As explained in the tutorial of Transcrypt.

With this way, I can call the Python function on button's click.