[英]Print out Python console output to Qtextedit
當我按下按鈕時，我有這樣的輸出：
['版本', 'ROMMON', 'HOSTNAME', 'UPTIME', 'RUNNING_IMAGE', 'HARDWARE', 'SERIAL', 'CONFIG_REGISTER']
['12.2(55)SE7'、'引導程序'、'Revo-Solusindo-01'、'1 小時 27 分鍾'、'c2960s-universalk9-mz.122-55.SE7.bin'、['WS-C2960S -24PD-L'], ['FOC1644Z129'], '0xF'] 寫入 1 條記錄
['風扇', '溫度', 'TEMPERATURE_VALUE', 'TEMPERATURE_STATE', 'YELLOW_THRESHOLD', 'RED_THRESHOLD', 'POWER', 'RPS']
['OK', 'OK', '33', 'GREEN', '54', '64', '', ''] 寫1條記錄
['總計'，'免費']
['57931776'，'29178368']
['524288', '523212'] 寫入 2 條記錄
['MEMTYPE', 'HEAD', 'TOTAL', 'USED', 'FREE', 'LOW', 'LARGE']
['處理器'、'2BA9598'、'73910760'、'26908308'、'47002452'、'45367928'、'30211716']
['I/O'、'6200000'、'14680064'、'12406764'、'2273300'、'2273300'、'2273024']
['驅動te', '1A00000', '1048576', '44', '1048532', '1048532', '1048532'] 寫入3條記錄
['CPU_5_SEC', 'CPU_1_MIN', 'CPU_5_MIN']
['10', '10', '9'] 寫入 1 條記錄
如何將后台進程的輸出打印到 Qtextedit？
我的代碼：
import sys
from PyQt4 import QtGui, QtCore
import jtextfsm as textfsm
class Window(QtGui.QMainWindow):
def __init__(self):
super(Window, self).__init__()
self.setGeometry(50, 50, 500, 300)
self.setWindowTitle("PyQT tuts!")
self.setWindowIcon(QtGui.QIcon('pythonlogo.png'))
self.home()
def home(self):
btn = QtGui.QPushButton("Generate", self)
btn.clicked.connect(self.TextFSM)
btn.resize(100, 50)
btn.move(50, 50)
process = QtGui.QTextEdit(self)
process.moveCursor(QtGui.QTextCursor.Start)
process.ensureCursorVisible()
process.setLineWrapColumnOrWidth(500)
process.setLineWrapMode(QtGui.QTextEdit.FixedPixelWidth)
process.setFixedWidth(400)
process.setFixedHeight(150)
process.move(50,100)
self.show()
def TextFSM(self):
nameFile = 'Switch'
try:
input_file = open(nameFile + '.txt', encoding='utf-8') # show version
raw_text_data = input_file.read()
input_file.close()
input_file2 = open(nameFile + '.txt', encoding='utf-8') # show env
raw_text_data2 = input_file2.read()
input_file2.close()
input_file3 = open(nameFile + '.txt', encoding='utf-8') # show flash
raw_text_data3 = input_file3.read()
input_file3.close()
input_file4 = open(nameFile + '.txt', encoding='utf-8') # show memory statistic
raw_text_data4 = input_file4.read()
input_file4.close()
input_file5 = open(nameFile + '.txt', encoding='utf-8') # show process cpu
raw_text_data5 = input_file5.read()
input_file5.close()
template = open("show-version.textfsm") # show version
re_table = textfsm.TextFSM(template)
fsm_results = re_table.ParseText(raw_text_data)
template2 = open("show-env.textfsm") # show env
re_table2 = textfsm.TextFSM(template2)
fsm_results2 = re_table2.ParseText(raw_text_data2)
template3 = open("show-flash.textfsm") # show flash
re_table3 = textfsm.TextFSM(template3)
fsm_results3 = re_table3.ParseText(raw_text_data3)
template4 = open("show-memory-statistic.textfsm") # show memory statistic
re_table4 = textfsm.TextFSM(template4)
fsm_results4 = re_table4.ParseText(raw_text_data4)
template5 = open("show-process-cpu.textfsm") # show process cpu
re_table5 = textfsm.TextFSM(template5)
fsm_results5 = re_table5.ParseText(raw_text_data5)
outfile_name = open(nameFile + "-show-version.csv", "w+") # show version
outfile = outfile_name
outfile_name2 = open(nameFile + "-show-env.csv", "w+") # show env
outfile2 = outfile_name2
outfile_name3 = open(nameFile + "-show-flash.csv", "w+") # show flash
outfile3 = outfile_name3
outfile_name4 = open(nameFile + "-show-memory-statistic.csv", "w+") # show memory statistic
outfile4 = outfile_name4
outfile_name5 = open(nameFile + "-show-process-cpu.csv", "w+") # show process cpu
outfile5 = outfile_name5
print(re_table.header) # show version
for s in re_table.header:
outfile.write("%s;" % s)
outfile.write("\n")
counter = 0
for row in fsm_results: # show version
print(row)
for s in row:
outfile.write("%s;" % s)
outfile.write("\n")
counter += 1
print("Write %d records" % counter)
print(re_table2.header) # show env
for s in re_table2.header:
outfile2.write("%s;" % s)
outfile2.write("\n")
counter = 0
for row in fsm_results2: # show env
print(row)
for s in row:
outfile2.write("%s;" % s)
outfile2.write("\n")
counter += 1
print("Write %d records" % counter)
print(re_table3.header) # show flash
for s in re_table3.header:
outfile3.write("%s;" % s)
outfile3.write("\n")
counter = 0
for row in fsm_results3: # show flash
print(row)
for s in row:
outfile3.write("%s;" % s)
outfile3.write("\n")
counter += 1
print("Write %d records" % counter)
print(re_table4.header) # show memory statistics
for s in re_table4.header:
outfile4.write("%s;" % s)
outfile4.write("\n")
counter = 0
for row in fsm_results4: # show memory statistics
print(row)
for s in row:
outfile4.write("%s;" % s)
outfile4.write("\n")
counter += 1
print("Write %d records" % counter)
print(re_table5.header) # show process cpu
for s in re_table5.header:
outfile5.write("%s;" % s)
outfile5.write("\n")
counter = 0
for row in fsm_results5: # show process cpu
print(row)
for s in row:
outfile5.write("%s;" % s)
outfile5.write("\n")
counter += 1
print("Write %d records" % counter)
except IOError:
print("Error: There Have File does not appear to exist.")
QtGui.QMessageBox.question(self, 'Warning', "ERROR:Please check you're '.txt' file and TextFSM File.")
def run():
app = QtGui.QApplication(sys.argv)
GUI = Window()
sys.exit(app.exec_())
run()
Python 產生的輸出控制台被寫入程序輸出流 sys.stdout（正常輸出）和 sys.stderr（錯誤輸出，例如異常回溯）。 在這種情況下，我們將使用 stdout
class Stream(QtCore.QObject):
newText = QtCore.pyqtSignal(str)
def write(self, text):
self.newText.emit(str(text))
class Window(QtGui.QMainWindow):
def __init__(self):
super(Window, self).__init__()
self.setGeometry(50, 50, 500, 300)
self.setWindowTitle("PyQT tuts!")
self.setWindowIcon(QtGui.QIcon('pythonlogo.png'))
self.home()
sys.stdout = Stream(newText=self.onUpdateText)
def onUpdateText(self, text):
cursor = self.process.textCursor()
cursor.movePosition(QtGui.QTextCursor.End)
cursor.insertText(text)
self.process.setTextCursor(cursor)
self.process.ensureCursorVisible()
def __del__(self):
sys.stdout = sys.__stdout__
完整代碼：
import sys
from PyQt4 import QtGui, QtCore
import jtextfsm as textfsm
class Stream(QtCore.QObject):
newText = QtCore.pyqtSignal(str)
def write(self, text):
self.newText.emit(str(text))
class Window(QtGui.QMainWindow):
def __init__(self):
super(Window, self).__init__()
self.setGeometry(50, 50, 500, 300)
self.setWindowTitle("PyQT tuts!")
self.setWindowIcon(QtGui.QIcon('pythonlogo.png'))
self.home()
sys.stdout = Stream(newText=self.onUpdateText)
def onUpdateText(self, text):
cursor = self.process.textCursor()
cursor.movePosition(QtGui.QTextCursor.End)
cursor.insertText(text)
self.process.setTextCursor(cursor)
self.process.ensureCursorVisible()
def __del__(self):
sys.stdout = sys.__stdout__
def home(self):
w = QtGui.QWidget()
self.setCentralWidget(w)
lay = QtGui.QVBoxLayout(w)
btn = QtGui.QPushButton("Generate")
btn.clicked.connect(self.TextFSM)
self.process = QtGui.QTextEdit()
self.process.moveCursor(QtGui.QTextCursor.Start)
self.process.ensureCursorVisible()
self.process.setLineWrapColumnOrWidth(500)
self.process.setLineWrapMode(QtGui.QTextEdit.FixedPixelWidth)
lay.addWidget(btn)
lay.addWidget(self.process)
self.show()
def TextFSM(self):
nameFile = 'Switch'
try:
input_file = open(nameFile + '.txt', encoding='utf-8') # show version
raw_text_data = input_file.read()
input_file.close()
input_file2 = open(nameFile + '.txt', encoding='utf-8') # show env
raw_text_data2 = input_file2.read()
input_file2.close()
input_file3 = open(nameFile + '.txt', encoding='utf-8') # show flash
raw_text_data3 = input_file3.read()
input_file3.close()
input_file4 = open(nameFile + '.txt', encoding='utf-8') # show memory statistic
raw_text_data4 = input_file4.read()
input_file4.close()
input_file5 = open(nameFile + '.txt', encoding='utf-8') # show process cpu
raw_text_data5 = input_file5.read()
input_file5.close()
template = open("show-version.textfsm") # show version
re_table = textfsm.TextFSM(template)
fsm_results = re_table.ParseText(raw_text_data)
template2 = open("show-env.textfsm") # show env
re_table2 = textfsm.TextFSM(template2)
fsm_results2 = re_table2.ParseText(raw_text_data2)
template3 = open("show-flash.textfsm") # show flash
re_table3 = textfsm.TextFSM(template3)
fsm_results3 = re_table3.ParseText(raw_text_data3)
template4 = open("show-memory-statistic.textfsm") # show memory statistic
re_table4 = textfsm.TextFSM(template4)
fsm_results4 = re_table4.ParseText(raw_text_data4)
template5 = open("show-process-cpu.textfsm") # show process cpu
re_table5 = textfsm.TextFSM(template5)
fsm_results5 = re_table5.ParseText(raw_text_data5)
outfile_name = open(nameFile + "-show-version.csv", "w+") # show version
outfile = outfile_name
outfile_name2 = open(nameFile + "-show-env.csv", "w+") # show env
outfile2 = outfile_name2
outfile_name3 = open(nameFile + "-show-flash.csv", "w+") # show flash
outfile3 = outfile_name3
outfile_name4 = open(nameFile + "-show-memory-statistic.csv", "w+") # show memory statistic
outfile4 = outfile_name4
outfile_name5 = open(nameFile + "-show-process-cpu.csv", "w+") # show process cpu
outfile5 = outfile_name5
print(re_table.header) # show version
for s in re_table.header:
outfile.write("%s;" % s)
outfile.write("\n")
counter = 0
for row in fsm_results: # show version
print(row)
for s in row:
outfile.write("%s;" % s)
outfile.write("\n")
counter += 1
print("Write %d records" % counter)
print(re_table2.header) # show env
for s in re_table2.header:
outfile2.write("%s;" % s)
outfile2.write("\n")
counter = 0
for row in fsm_results2: # show env
print(row)
for s in row:
outfile2.write("%s;" % s)
outfile2.write("\n")
counter += 1
print("Write %d records" % counter)
print(re_table3.header) # show flash
for s in re_table3.header:
outfile3.write("%s;" % s)
outfile3.write("\n")
counter = 0
for row in fsm_results3: # show flash
print(row)
for s in row:
outfile3.write("%s;" % s)
outfile3.write("\n")
counter += 1
print("Write %d records" % counter)
print(re_table4.header) # show memory statistics
for s in re_table4.header:
outfile4.write("%s;" % s)
outfile4.write("\n")
counter = 0
for row in fsm_results4: # show memory statistics
print(row)
for s in row:
outfile4.write("%s;" % s)
outfile4.write("\n")
counter += 1
print("Write %d records" % counter)
print(re_table5.header) # show process cpu
for s in re_table5.header:
outfile5.write("%s;" % s)
outfile5.write("\n")
counter = 0
for row in fsm_results5: # show process cpu
print(row)
for s in row:
outfile5.write("%s;" % s)
outfile5.write("\n")
counter += 1
print("Write %d records" % counter)
except IOError:
print("Error: There Have File does not appear to exist.")
QtGui.QMessageBox.question(self, 'Warning', "ERROR:Please check you're '.txt' file and TextFSM File.")
def run():
app = QtGui.QApplication(sys.argv)
GUI = Window()
sys.exit(app.exec_())
run()
截屏：
我建議在eyllanesc 的答案中添加一個附加功能，以將標准輸出返回到默認值。 然后關閉應用程序時不會彈出任何錯誤。
def closeEvent(self, event):
"""Shuts down application on close."""
# Return standard output to defaults.
sys.stdout = sys.__stdout__
super().closeEvent(event)
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