考虑以下代码片段
class Worker(QtCore.QRunnable):
def __init__(self):
super(Worker, self).__init__()
def run(self):
print('Running Worker')
class Tasks(QtCore.QObject):
def __init__(self):
super(Tasks, self).__init__()
self.pool = QtCore.QThreadPool.globalInstance()
self.pool.setMaxThreadCount(2)
def start(self):
for task in range(3):
worker = Worker()
self.pool.start(worker)
self.pool.waitForDone()
def main():
prefix_path = os.environ['QGIS_PREFIX_PATH']
QgsApplication.setPrefixPath(prefix_path, True)
QgsApplication.initQgis()
tasks = Tasks()
tasks.start()
我收到以下错误
_original_runnable_init(self, *args, **kwargs)
TypeError: keyword arguments are not supported
创建工作者对象有什么问题？
不知道QGis初始化有什么问题，但是以下代码在我的机器上可以正常工作：
from PyQt4 import QtCore
class Worker(QtCore.QRunnable):
def __init__(self):
super(Worker, self).__init__()
def run(self):
print('Running Worker')
class Tasks(QtCore.QObject):
def __init__(self):
super(Tasks, self).__init__()
self.pool = QtCore.QThreadPool.globalInstance()
self.pool.setMaxThreadCount(2)
def start(self):
for task in range(3):
worker = Worker()
self.pool.start(worker)
self.pool.waitForDone()
if __name__ == '__main__':
tasks = Tasks()
tasks.start()
它给了我以下输出：
Running Worker
Running Worker
Running Worker
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我来说两句