Print out python console output to Qtextedit
I have the output like this, when I press the button
['VERSION', 'ROMMON', 'HOSTNAME', 'UPTIME', 'RUNNING_IMAGE', 'HARDWARE', 'SERIAL', 'CONFIG_REGISTER']
['12.2(55)SE7', 'Bootstrap', 'Revo-Solusindo-01', '1 hour, 27 minutes', 'c2960s-universalk9-mz.122-55.SE7.bin', ['WS-C2960S-24PD-L'], ['FOC1644Z129'], '0xF'] Write 1 records
['FAN', 'TEMPERATURE', 'TEMPERATURE_VALUE', 'TEMPERATURE_STATE', 'YELLOW_THRESHOLD', 'RED_THRESHOLD', 'POWER', 'RPS']
['OK', 'OK', '33', 'GREEN', '54', '64', '', ''] Write 1 records
['TOTAL', 'FFREE']
['57931776', '29178368']
['524288', '523212'] Write 2 records
['MEMTYPE', 'HEAD', 'TOTAL', 'USED', 'FREE', 'LOW', 'LARGE']
['Processor', '2BA9598', '73910760', '26908308', '47002452', '45367928', '30211716']
[' I/O', '6200000', '14680064', '12406764', '2273300', '2273300', '2273024']
['Driver te', '1A00000', '1048576', '44', '1048532', '1048532', '1048532'] Write 3 records
['CPU_5_SEC', 'CPU_1_MIN', 'CPU_5_MIN']
['10', '10', '9'] Write 1 records
How can I print the output of the background process to Qtextedit?
my code :
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()
Answer
The output consoles produced by Python are written to the program output streams sys.stdout (normal output) and sys.stderr (error output, such as exception tracebacks). In this case we will use 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__
Complete code:
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()
Screenshot:
