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我尝试pyotherside从 ubuntu repos(包qml-module-io-thp-pyothersidepyotherside)以及git repo安装。

但是在 Python3 中导入它时,我不断得到ImportError: No module named 'pyotherside'.

有谁知道为什么?我应该找到安装 pyotherside 的路径是什么?

操作系统:Ubuntu 16.04.2

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1 回答 1

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PyOtherSide是一个使用 python 代码的库,QML反之亦然,在您的项目中,您必须使用 qml 文件和 python 文件。要运行程序,您必须执行 qml,例如:

{your directory}
├── imageprovider.py
└── imageprovider.qml

图像提供程序.py

import pyotherside
import math

def render(image_id, requested_size):
    print('image_id: "{image_id}", size: {requested_size}'.format(**locals()))

    # width and height will be -1 if not set in QML
    if requested_size == (-1, -1):
        requested_size = (300, 300)

    width, height = requested_size

    # center for circle
    cx, cy = width/2, 10

    pixels = []
    for y in range(height):
        for x in range(width):
            pixels.extend(reversed([
                255, # alpha
                int(10 + 10 * ((x - y * 0.5) % 20)), # red
                20 + 10 * (y % 20), # green
                int(255 * abs(math.sin(0.3*math.sqrt((cx-x)**2 + (cy-y)**2)))) # blue
            ]))
    return bytearray(pixels), (width, height), pyotherside.format_argb32

pyotherside.set_image_provider(render)

imageprovider.qml

import QtQuick 2.0
import io.thp.pyotherside 1.5

Image {
    id: image
    width: 300
    height: 300

    Python {
        Component.onCompleted: {
            // Add the directory of this .qml file to the search path
            addImportPath(Qt.resolvedUrl('.'));

            importModule('imageprovider', function () {
                image.source = 'image://python/image-id-passed-from-qml';
            });
        }

        onError: console.log('Python error: ' + traceback)
    }
}

你打开一个终端运行:

qmlscene {your directory}/imageprovider.qml
于 2017-04-29T23:52:14.893 回答