【发布时间】：2016-07-24 15:24:45
【问题描述】：
更新：正在跟踪问题here
编辑：我可能不是唯一遇到此问题的人。我错过了今天也发布的这个，它看起来很相关：PyCharm debugger doesn't work
以下是使用 Pycharm Professional 时在 Windows 7 和 Ubuntu 14.04 上运行良好的最小示例
PyCharm 2016.1
Build #PY-145.260, built on March 22, 2016
JRE: 1.8.0_60-b27 x86
JVM: Java HotSpot(TM) Server VM by Oracle Corporation
现在是超级奇怪的部分：在 Ubuntu 的 Pycharm 调试器上，我没有遇到任何问题。但是，在 Window 的 Pycharm 调试器中，我得到了以下回溯（即使代码在不调试时运行良好！）：
Traceback (most recent call last):
File "D:\Program Files (x86)\JetBrains\PyCharm 2016.1\helpers\pydev\pydevd.py", line 1530, in <module>
globals = debugger.run(setup['file'], None, None, is_module)
File "D:\Program Files (x86)\JetBrains\PyCharm 2016.1\helpers\pydev\pydevd.py", line 937, in run
pydev_imports.execfile(file, globals, locals) # execute the script
File "C:/Users/Cornelis/PycharmProjects/SO-Help/test.py", line 11, in <module>
class MainWindow(QtGui.QMainWindow):
File "C:/Users/Cornelis/PycharmProjects/SO-Help/test.py", line 58, in MainWindow
@QtCore.pyqtSlot(int, int)
AttributeError: 'module' object has no attribute 'pyqtSlot'
Backend TkAgg is interactive backend. Turning interactive mode on.
我什至不知道我应该如何开始调试，因为我以前从未见过这样的事情发生！如果您的程序在您运行它时工作但在您尝试调试它时却没有，而且它在另一个操作系统上调试得很好，这到底意味着什么？这只能是一个 Pycharm 错误吗？上面的回溯与我在主程序中得到的并不完全相同，但却是我能得到的最接近的。以下是我在完整程序中看到的回溯：
Backend TkAgg is interactive backend. Turning interactive mode on.
Traceback (most recent call last):
File "D:\Program Files (x86)\JetBrains\PyCharm 2016.1\helpers\pydev\pydevd.py", line 1530, in <module>
globals = debugger.run(setup['file'], None, None, is_module)
File "D:\Program Files (x86)\JetBrains\PyCharm 2016.1\helpers\pydev\pydevd.py", line 937, in run
pydev_imports.execfile(file, globals, locals) # execute the script
File "D:/Home/Documents/PycharmProjects/BMDanalyse/BMDanalyse/SPCanalyse.py", line 22, in <module>
from ViewBoxCustom import MultiRoiViewBox, ImageAnalysisViewBox
File "D:/Home/Documents/PycharmProjects/BMDanalyse/BMDanalyse\ViewBoxCustom.py", line 68, in <module>
class MultiRoiViewBox(pg.ViewBox):
File "D:/Home/Documents/PycharmProjects/BMDanalyse/BMDanalyse\ViewBoxCustom.py", line 71, in MultiRoiViewBox
clicked = QtCore.pyqtSignal(int, int)
AttributeError: 'module' object has no attribute 'pyqtSignal'
这是您的最小示例。只需复制并粘贴并单击 ViewBox。如果您运行它，应该会出现一个随机图像。但是如果你调试它，它就会爆炸。
import os, sys, matplotlib, matplotlib.pyplot
import numpy as np
from pyqtgraph.Qt import QtCore, QtGui
from pyqtgraph.widgets.GraphicsLayoutWidget import GraphicsLayoutWidget
import pyqtgraph as pg
import pyqtgraph.functions as fn
N = 256
ARR = np.random.random((N,N))*255
class MainWindow(QtGui.QMainWindow):
def __init__(self, parent=None):
QtGui.QMainWindow.__init__(self, parent)
self.setupUserInterface()
self.setupSignals()
def setupUserInterface(self):
""" Initialise the User Interface """
# Left frame
leftFrame = QtGui.QFrame()
leftFrameLayout = QtGui.QHBoxLayout()
leftFrame.setLayout(leftFrameLayout)
leftFrame.setLineWidth(0)
leftFrame.setFrameStyle(QtGui.QFrame.Panel)
leftFrameLayout.setContentsMargins(0,0,5,0)
# Left frame contents
self.viewMain = GraphicsLayoutWidget() # A GraphicsLayout within a GraphicsView
leftFrameLayout.addWidget(self.viewMain)
self.viewMain.setMinimumSize(200,200)
self.vb = MultiRoiViewBox(lockAspect=True,enableMenu=True)
self.viewMain.addItem(self.vb)
self.vb.enableAutoRange()
# Right frame
self.sidePanel = SidePanel(self)
# UI window (containing left and right frames)
UIwindow = QtGui.QWidget(self)
UIwindowLayout = QtGui.QHBoxLayout()
UIwindowSplitter = QtGui.QSplitter(QtCore.Qt.Horizontal)
UIwindowLayout.addWidget(UIwindowSplitter)
UIwindow.setLayout(UIwindowLayout)
self.setCentralWidget(UIwindow)
UIwindowSplitter.addWidget(leftFrame)
UIwindowSplitter.addWidget(self.sidePanel)
self.setMinimumSize(600,500)
self.resize(self.minimumSize())
def setupSignals(self):
""" Setup signals """
# self.sidePanel.buttImageAdd.clicked.connect(self.showImage)
self.vb.clicked.connect(self.on_vbc_clicked)
@QtCore.pyqtSlot(int, int)
def on_vbc_clicked(self, x, y):
print(x)
print(y)
self.showImage()
def showImage(self):
""" Shows image in main view """
self.vb.showImage(ARR)
class ViewMode():
def __init__(self,id,cmap):
self.id = id
self.cmap = cmap
self.getLookupTable()
def getLookupTable(self):
lut = [ [ int(255*val) for val in self.cmap(i)[:3] ] for i in xrange(256) ]
lut = np.array(lut,dtype=np.ubyte)
self.lut = lut
class MultiRoiViewBox(pg.ViewBox):
sigROIchanged = QtCore.Signal(object)
clicked = QtCore.pyqtSignal(int, int)
def __init__(self,parent=None,border=None,lockAspect=False,enableMouse=True,invertY=False,enableMenu=True,name=None):
pg.ViewBox.__init__(self,parent,border,lockAspect,enableMouse,invertY,enableMenu,name)
self.img = None
self.NORMAL = ViewMode(0,matplotlib.cm.gray)
self.DEXA = ViewMode(1,matplotlib.cm.jet)
self.viewMode = self.NORMAL
def showImage(self,arr):
if arr==None:
self.img = None
return
if self.img==None:
self.img = pg.ImageItem(arr,autoRange=False,autoLevels=False)
self.addItem(self.img)
self.img.setImage(arr,autoLevels=False)
self.updateView()
def updateView(self):
self.background.setBrush(fn.mkBrush(self.viewMode.lut[0]))
self.background.show()
if self.img==None: return
else: self.img.setLookupTable(self.viewMode.lut)
def mouseClickEvent(self, ev):
if ev.button() == QtCore.Qt.RightButton and self.menuEnabled():
ev.accept()
self.raiseContextMenu(ev)
elif ev.button() == QtCore.Qt.LeftButton:
ev.accept()
pos = self.mapToItem(self.img, ev.pos())
self.clicked.emit(pos.x(), pos.y())
from pyqtgraph.Qt import QtCore,QtGui
class SidePanel(QtGui.QWidget):
def __init__(self, parent=None):
QtGui.QWidget.__init__(self,parent)
self.setMinimumWidth(250)
self.buttMinimumSize = QtCore.QSize(36,36)
self.setupImageToolbox()
sidePanelLayout = QtGui.QVBoxLayout()
sidePanelLayout.addWidget(self.imageToolbox)
sidePanelLayout.setContentsMargins(0,0,0,0)
self.setLayout(sidePanelLayout)
def setupImageToolbox(self):
# Image buttons
self.buttImageAdd = QtGui.QPushButton()
imageButtons = [self.buttImageAdd]
for i in xrange(len(imageButtons)):
image = imageButtons[i]
image.setMinimumSize(self.buttMinimumSize)
self.imageFileTools = QtGui.QFrame()
imageFileToolsLayout = QtGui.QHBoxLayout()
self.imageFileTools.setLayout(imageFileToolsLayout)
self.imageFileTools.setLineWidth(1)
self.imageFileTools.setFrameStyle(QtGui.QFrame.StyledPanel)
imageFileToolsLayout.addWidget(self.buttImageAdd)
# Image Toolbox (containing imageFileList + imageFileList buttons)
self.imageToolbox = QtGui.QFrame()
self.imageToolbox.setLineWidth(2)
self.imageToolbox.setFrameStyle(QtGui.QFrame.Panel | QtGui.QFrame.Raised)
imageToolboxLayout = QtGui.QVBoxLayout()
self.imageToolbox.setLayout(imageToolboxLayout)
imageToolboxLayout.addWidget(self.imageFileTools)
if __name__ == "__main__":
app = QtGui.QApplication(sys.argv)
window = MainWindow()
window.show()
sys.exit(app.exec_())
【问题讨论】：
标签： python debugging pyqt pycharm signals-slots