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我现在收到这个错误好几天了。出于 setuptools - demsjon - justpy 兼容性的原因，尝试从 Python3.9.9 降级到 Python3.9.2。我正在尝试将 JavaScript 转换为 Python 字典。这是我想在 Quasar 页面上制作的样条图。

这是代码：

import justpy as jp

chart_def = """
{
    chart: {
        type: 'spline',
        inverted: true
    },
    title: {
        text: 'Atmosphere Temperature by Altitude'
    },
    subtitle: {
        text: 'According to the Standard Atmosphere Model'
    },
    xAxis: {
        reversed: false,
        title: {
            enabled: true,
            text: 'Altitude'
        },
        labels: {
            format: '{value} km'
        },
        accessibility: {
            rangeDescription: 'Range: 0 to 80 km.'
        },
        maxPadding: 0.05,
        showLastLabel: true
    },
    yAxis: {
        title: {
            text: 'Temperature'
        },
        labels: {
            format: '{value}°'
        },
        accessibility: {
            rangeDescription: 'Range: -90°C to 20°C.'
        },
        lineWidth: 2
    },
    legend: {
        enabled: false
    },
    tooltip: {
        headerFormat: '<b>{series.name}</b><br/>',
        pointFormat: '{point.x} km: {point.y}°C'
    },
    plotOptions: {
        spline: {
            marker: {
                enable: false
            }
        }
    },
    series: [{
        name: 'Temperature',
        data: [[0, 15], [10, -50], [20, -56.5], [30, -46.5], [40, -22.1],
            [50, -2.5], [60, -27.7], [70, -55.7], [80, -76.5]]
    }]
}
"""

def app():
    wp = jp.WebPage()
    my_chart = jp.HighCharts(
        a=wp, classes='m-2 p-2 border', style='width: 600px')
    my_chart.options = chart_def
    return wp

jp.justpy(app)

我收到一条 huuuuge 回溯消息：

JustPy ready to go on http://127.0.0.1:8000
ERROR:    Exception in ASGI application
Traceback (most recent call last):
.....
....
..
AttributeError: 'dict' object has no attribute 'has_key'
ERROR h11_impl: Exception in ASGI application
Traceback (most recent call last):
.....
...
..
AttributeError: 'dict' object has no attribute 'has_key'
ERROR:    Exception in ASGI application
Traceback (most recent call last):
...
..
..
AttributeError: 'dict' object has no attribute 'has_key'
ERROR h11_impl: Exception in ASGI application
Traceback (most recent call last):
...
..
..

AttributeError: 'dict' object has no attribute 'has_key'

更新：

我设法克服了这个错误，并且使用 demjson==2.2.4 得到了一个新错误：

Traceback (most recent call last):
  File "c:\Users\Fotis Avg\Desktop\Python_course\DataAnalysis3rdApp\test.py", line 1, in <module>
    import justpy as jp
  File "C:\Users\Fotis Avg\AppData\Local\Programs\Python\Python39\lib\site-packages\justpy\__init__.py", line 1, in <module>       
    from .justpy import *
  File "C:\Users\Fotis Avg\AppData\Local\Programs\Python\Python39\lib\site-packages\justpy\justpy.py", line 13, in <module>        
    from .chartcomponents import *
  File "C:\Users\Fotis Avg\AppData\Local\Programs\Python\Python39\lib\site-packages\justpy\chartcomponents.py", line 2, in <module>
    import demjson
  File "C:\Users\Fotis Avg\AppData\Local\Programs\Python\Python39\lib\site-packages\demjson.py", line 645
    class json_int( (1L).__class__ ):    # Have to specify base this way to satisfy 2to3
                      ^
SyntaxError: invalid syntax
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