Dear friends,
I need execute an external program from a gui using PyQt4, to avoid
that hang the main thread, i must connect the signal "finished(int)"
of a QProcess to work properly.
for example, why this program don't work?
from PyQt4.QtCore import QProcess
pro = QProcess() # create QProcess object
pro.connect(pro, SIGNAL('started()'), lambda
x="started":print(x)) # connect
pro.connect(pro, SIGNAL("finished(int)"), lambda
x="finished":print(x))
pro.start('python',['hello.py']) # star hello.py program
(contain print("hello world!"))
timeout = -1
pro.waitForFinished(timeout)
print(pro.readAllStandardOutput().data())
output:
started
0
b'hello world!\n'
see that not emit the signal finished(int)
I'm using Python 3.2 and PyQt 4.8.4 under winxp 32bit.
best regards,
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