Pyside: Use button to copy text from qlineEdit to a label and to a string var
https://stackoverflow.com/questions/8481456
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14-03-2021 - |
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I'm trying to get a pyside button to copy text from a qlineEdit field to a label and to a string variable. I have been through almost all of the Zetcode tutorials, but obviously I am missing something critical here. Be gentle, I'm a python newbie and a pyside newbie. I'm looking for more pyside tutorials.
I tried using my Qbutton to copy the text from the lineEdit, and then in a fit of desperation, I tried xxxxxxx
Here's my code (any suggestions would be much appreciated, particularly with a link to where I can learn about what I needed to know):
Thank you for your help, Marc
import sys
from PySide import QtGui, QtCore
class Example(QtGui.QWidget):
def __init__(self):
super(Example, self).__init__()
self.initUI()
def initUI(self):
nu_prg_name_label = QtGui.QLabel('Program Name:')
author_label = QtGui.QLabel('Author')
qle = QtGui.QLineEdit(self)
qle.textChanged[str].connect(self.onChanged)
# I added the buttons
okButton = QtGui.QPushButton("OK")
cancelButton = QtGui.QPushButton("Cancel")
grid = QtGui.QGridLayout()
grid.setSpacing(4)
# (arg__1, row, column, rowSpan, columnSpan[, alignment=0])
grid.addWidget(nu_prg_name_label, 1, 0)
grid.addWidget(author_label, 2, 0)
grid.addWidget(qle, 1, 1, 1, 4)
# I added the following 2 lines
grid.addWidget(okButton, 3, 3)
grid.addWidget(cancelButton, 3, 4)
#grid.addWidget(review_label, 3, 0)
# The QPushButton has a predefined 'signal' called 'clicked'
# which is triggered every time that the button is pressed.
# We will just 'connect' this signal to the sayHello() function:
# Connect the button to the function
okButton.clicked.connect(self.sendtxt2_qle)
#grid.addWidget(author_label, 2, 0)
#grid.addWidget(author_LineEdit02, 2, 1)
#grid.addWidget(review_label, 3, 0)
#grid.addWidget(review_TextEdit, 3, 1, 5, 1)
self.setLayout(grid)
# Horizontal, vertical, width, length
self.setGeometry(900, 300, 400, 100)
self.setWindowTitle('Create Dirs [Info, TestArea, ItWorks] for a Program')
self.show()
def onChanged(self, text):
nu_prg_name = self.qle.getText()
self.author_label.setText(nu_prg_name)
print "Line 67: nu_prg_name = " + nu_prg_name
def sendtxt2_qle(self):
nu_prg_name = self.grid.qle.getText()
self.grid.author_label.setText(nu_prg_name)
print "Line 72: nu_prg_name = " + nu_prg_name
def main():
app = QtGui.QApplication(sys.argv)
ex = Example()
sys.exit(app.exec_())
if __name__ == '__main__':
main()
Solution
There are several issues with the script you posted:
author_labelandqleare referenced outside theinitUImethod, so they need to be replaced withself.author_labelandself.qlewherever they are used.- The
onChangedmethod tries to retrieve the line-edit text using the non-existent methodgetText. Useself.qle.text(), or, better still, use thetextargument that is passed to theonChangedmethod by thetextChangedsignal. - The
sendtxt2_qlemethod has similar errors to (2), and also wrongly tries to referenceqleandauthor_labelas attributes ofself.grid(which does not exist). See (1) for how to fix this.
Note: When I ran the amended version of you script, I got some corrupted output from the print statements. This appears to be a bug in PySide, because the same script runs perfectly fine using PyQt4. (I'm using PySide-1.09.)
OTHER TIPS
I realize this thread is necro but wanted to update for newer users. The old os.path is now subprocess (import subprocess).
Ran into this problem myself trying to pass QString to a subprocess call and stumbled on the answer.
Use str(object.displayText()) to convert Qstring to String.
string = str(self.lineEdit.displayText())
print string
the following is how I implemented the helpful answer from ekhumoro:
"""
This script creates a new set of directories for a program/software. The directories
will include an info-directory, and MarcsPrgs-directories [ItWorks, TestArea]
where I will develop utilities/programs to work in that program/software.
This script also creates a 'hyperlink_doc_string', which will be implanted
into the office's html menu page.
"""
import os, sys, shutil #win32clipboard, win32con,
import re, string, traceback, pdb #easygui,
from PyQt4 import QtGui
from PyQt4 import QtCore
import win32clipboard
import time
import subprocess
def create_Html(nu_prg_name):
"""
This function creates a set of hyperlinks to the new directories. The hyperlinks will
1) appear in the Qt dialog window,
which is generated (below) by: 'class Example(QtGui.QWidget)'
and
2) be added to an html page
"""
if len(nu_prg_name) == 0:
print 'Error message fr "def create_dirs_and_Html(nu_prg_name)": ' \
+ ' The variable "nu_prg_name" is empty.'
hyperlink_doc_string = r'<a href="P:\Data\VB' + '\\' + nu_prg_name + '_Info' + '\\">' + nu_prg_name + '_Info</a> ' \
+ '\n' + r'<a href="M:' + '\\' + nu_prg_name + '\">M-drv_Dir</a> ' \
+ '\n' + r'<a href="P:\Data\VB' + '\\' + nu_prg_name + r'_Info\URLs' + '\\">' + nu_prg_name + r'_URLs</a><br />' \
+ '\n' + r'<a href="P:\Data\VB' + '\\' + nu_prg_name + r'_MarcsPrgs' + '\\">' + nu_prg_name + r'_MarcsPrgs</a> ' \
+ '\n' + r'<a href="P:\Data\VB' + '\\' + nu_prg_name + r'_MarcsPrgs' + '\\' + nu_prg_name + r'_TestArea' + '\\">' + nu_prg_name + '_TestArea</a> ' \
+ '\n' + r'<a href="P:\Data\VB' + '\\' + nu_prg_name + r'_MarcsPrgs' + '\\' + nu_prg_name + r'_ItWorks' + '\\">' + nu_prg_name + '_ItWorks</a>' \
+ '<br />\n'
print "Line 38: " + hyperlink_doc_string + '\n\n'
ex.sendtxt2_qle_test(hyperlink_doc_string)
## Send the hyperlink_doc_string to the Windows clipboard
## (this is a temporary solution; later I'll have the script add it directly to the ToolbarB)
# win32clipboard.OpenClipboard()
# win32clipboard.EmptyClipboard()
# win32clipboard.SetClipboardText(hyperlink_doc_string)
# win32clipboard.CloseClipboard()
# pdb.set_trace()
"""
The next line sends the hyperlink_doc_string to the dialog box, wherein
the hyperlink_doc_string will be viewed. If the hyperlink_doc_string
is approved, the user will click the 'OK' button, which calls
ex's internal function 'makeDirsAndHtml_ok'.
The 'makeDirsAndHtml_ok' function calls sequentially the following two
functions:
[1] 'create_Html(self.nu_prg_name_var)', and [2] 'create_dirs(nu_prg_name)'
"""
#ex.sendtxt2_qle_test(hyperlink_doc_string)
#ex.callMsgBoxFromOutsideThisClass()
# TODO: Add code that will implant the 'hyperlink_doc_string' into the office's html menu
# pdb.set_trace()# commands are n (next); c (continue); s (step thru)
# print(var)
# create_dirs(nu_prg_name)
def writeHTML2file(hyperlink_doc_string, nu_prg_name):
# Save the hyperlink_doc_string to a file so that I can paste it into Toolbar B.
print 'Line 78: \nhyperlink_doc_string = ' + hyperlink_doc_string + '\n\n' \
'nu_prg_name = ' + nu_prg_name
tmp_filename = 'tmp_' + nu_prg_name + '_' + str(time.time()) + '.txt'
tmp_filename = r"C:\Apps\E_drive" + '\\' + tmp_filename
fileobj = open(tmp_filename, 'w')
fileobj.write(hyperlink_doc_string)
fileobj.close()
def create_dirs(nu_prg_name):
"""
This function creates a new set of directories for a program/software. The directories
will include an info-directory, and MarcsPrgs-directories [ItWorks, TestArea]
where I will develop utilities/programs to work in that program/software.
"""
Archive_dot_Rar_file_FULLName = r"K:\data\FORMS\File folder setup forms\SAVE.and.Put.nothing.in.this.RarArchive.rar"
TopDir = r"P:\Data\VB"
hyperlink_doc_ls = ['M_drv_Dir', 'URLs']
dirlist = ['_Info', '_MarcsPrgs', '_TestArea', '_ItWorks']
numasterpath = TopDir + "\\" + nu_prg_name
dir_pathlist = dirlist[:]
for i in range(2):
dir_pathlist[i] = numasterpath + str(dir_pathlist[i])
for i in range(2, 4):
dir_pathlist[i] = str(dir_pathlist[1]) + "\\" + nu_prg_name + str(dir_pathlist[i])
# TO DO : CREATE A DIR FOR URLs
print '\n' + 'Line 60: ' + str(dir_pathlist) + '\n'
itms2chkexistence = [Archive_dot_Rar_file_FULLName, dir_pathlist[0], dir_pathlist[1]] # TopDir and numasterpath may be effectively
i = 0
int_dirs_whShd_not_exist = 2
if 1 == 1:
for item in itms2chkexistence:
# check to determine if critical items exist
# i.e., [0]=Archive_dot_Rar_file_FULLName, and [2]=TopDir
if i < 1: # Verify that these exist: [0]=Archive_dot_Rar_file_FULLName, and [2]=TopDir
if os.path.exists(item):
pass
elif os.path.isfile(item):
print 'Error message from Line 79 of "' + str(os.argv[0]) + ':\n"' \
+ item + '" does not exist. ' \
+ 'This script will now terminate.'
quit()
if i > 0:
#Verify that the following 2 dirs do NOT exist: 1) ' + nu_prg_name + '_Info 2) ' + nu_prg_name + '_MarcsPrgs
# because we don't want to over-write .rar files, or other things.
if os.path.exists(item):
print 'Line 90: Error! "' + item + '" already exists. ' + \
'This script will now terminate.'
# quit()
else:
print 'Line 95: int_dirs_whShd_not_exist (' + str(item) + \
') = ' + str(int_dirs_whShd_not_exist)
if os.path.isfile(item):
print 'Line 100: Error! "' + item + '" is a file that already exists. ' + \
'This script will now terminate.'
quit()
else:
print 'Line 105: int_dirs_whShd_not_exist (' + str(item) + \
') = ' + str(int_dirs_whShd_not_exist)
int_dirs_whShd_not_exist = int_dirs_whShd_not_exist - 1
print 'Line 110: int_dirs_whShd_not_exist (' + str(item) + \
') = ' + str(int_dirs_whShd_not_exist)
i +=1
print 'Line 114: int_dirs_whShd_not_exist = ' + str(int_dirs_whShd_not_exist)
# Above, we verified that that the following 2 dirs do NOT exist:
# 1) ' + nu_prg_name + '_Info 2) ' + nu_prg_name + '_MarcsPrgs
# But I don't want to reprogram this, so I'll just check again.
nuRars = [str(dir + '\\Archive.Nu.rar') for dir in dir_pathlist]
print 'Line 122: "str(nuRars) = "' + '\n\t' + str(nuRars)
#pdb.set_trace()
if int_dirs_whShd_not_exist == 0:
print 'Success Message from Line 128 of "' + str(sys.argv[0]) + '":\n' \
+ 'dir_pathlist = ' + '\n\t' + str(dir_pathlist) + '\n\n' \
+ 'nuRars = ' + '\n\t' + str(nuRars)
path2open = '"' + str(dir_pathlist[0]) + '"'
print 'Line 191: path2open = ' + dir_pathlist[0]
#pdb.set_trace()
[os.mkdir(dir) for dir in dir_pathlist]
else:
print 'ERROR! Line 134: "int_dirs_whShd_not_exist" <> 0 '
print 'Success Message from Line 138 of "' + str(sys.argv[0]) + '":\n' \
+ str(dir_pathlist) + '\n\n'
# pdb.set_trace()
for nurarfile in nuRars:
print 'Line 143: nurarfile = ' + str(nurarfile) + '\n' \
+ 'Archive_dot_Rar_file_FULLName = ' + str(Archive_dot_Rar_file_FULLName) \
+ '\n\n'
shutil.copyfile(Archive_dot_Rar_file_FULLName, str(nurarfile))
#[shutil.copyfile(Archive_dot_Rar_file_FULLName, nurarfile) for nurarfile in nuRars]
# Verify success of job...
for rarAchiveFile in nuRars:
# check to determine if critical items exist
if os.path.exists(rarAchiveFile):
pass
else:
print "Error! " + Archive_dot_Rar_file_FULLName + "does not exist. " + \
"The scriptfailed. I don't know why. This script will now terminate."
quit()
cmdline = r'explorer /select, ' + path2open
subprocess.Popen(cmdline)
strMsgBoxMsg = "Success! All directories and Rar Archive files have been created.\t" + \
"Job done!"
os.system(r"C:\Apps\UtilitiesByMarc\MessageBoxe_SAVE_.vbs" + ' "' + strMsgBoxMsg + '"')
#subprocess.Popen(cmdline)
print strMsgBoxMsg
class Example(QtGui.QWidget):
def __init__(self):
super(Example, self).__init__()
self.initUI()
def initUI(self):
self.nu_prg_name_label = QtGui.QLabel('Program Name:')
self.author_label = QtGui.QLabel('')
self.qle = QtGui.QLineEdit(self)
#self.qle.textChanged[str].connect(self.onChanged) #This line worked fine, i think.
#self.connect(self.qle.textChanged[str],self.onChanged)
#self.qle.textChanged[str].connect(self.onChanged)
#self.connect(self.qle.textChanged(QString)),this,SLOT(onChanged(QString))
# I added the buttons
self.testButton = QtGui.QPushButton("Test")
self.okButton = QtGui.QPushButton("OK")
self.cancelButton = QtGui.QPushButton("Cancel")
grid = QtGui.QGridLayout()
grid.setSpacing(4)
# (arg__1, row, column, rowSpan, columnSpan[, alignment=0])
grid.addWidget(self.nu_prg_name_label, 1, 0)
grid.addWidget(self.author_label, 2, 0)
grid.addWidget(self.qle, 1, 1, 1, 4)
# I added the following 3 lines
grid.addWidget(self.testButton, 3, 2)
grid.addWidget(self.okButton, 3, 3)
grid.addWidget(self.cancelButton, 3, 4)
#grid.addWidget(review_label, 3, 0)
# The QPushButton has a predefined 'signal' called 'clicked'
# which is triggered every time that the button is pressed.
# We will just 'connect' this signal to the sayHello() function:
# Connect the button to the function
self.testButton.clicked.connect(self.sendtxt2_qle_test)
self.okButton.clicked.connect(self.makeDirsAndHtml_ok)
# qbtn.clicked.connect(QtCore.QCoreApplication.instance().quit)
self.cancelButton.clicked.connect(QtCore.QCoreApplication.instance().quit)
#grid.addWidget(author_label, 2, 0)
#grid.addWidget(author_LineEdit02, 2, 1)
#grid.addWidget(review_label, 3, 0)
#grid.addWidget(review_TextEdit, 3, 1, 5, 1)
self.setLayout(grid)
# Horizontal, vertical, width, length
#self.setGeometry(10, 300, 400, 100)
self.setGeometry(10, 300, 400, 100)
self.setWindowTitle('Create Dirs [Info, TestArea, ItWorks] for a Program')
self.show()
self.bln_you_saw_test_results = False
def resize_win2hold_html(self):
# Horizontal, vertical, width, length
#self.setGeometry(10, 20, 800, 800)
self.setGeometry(10, 300, 400, 150)
self.setWindowTitle('Create Dirs [Info, TestArea, ItWorks] for a Program')
self.show()
def onChanged(self, text):
self.nu_prg_name_var = self.qle.text()
self.author_label.setText(self.nu_prg_name_var)
#print "Line 224: nu_prg_name_var = " + self.nu_prg_name_var
def sendtxt2_qle_test(self, HtmlStr="HTML"):
self.bln_you_saw_test_results = True
self.nu_prg_name_var = self.qle.text()
# os.system(r"C:\Apps\UtilitiesByMarc\MessageBoxe_SAVE_.vbs" + ' "' + 'Line 122 in sendtxt2_qle_test' + '"')
if HtmlStr == False:
create_Html(self.nu_prg_name_var)
if HtmlStr:
self.resize_win2hold_html()
self.msge = HtmlStr
self.author_label.setText(self.msge)
writeHTML2file(HtmlStr, self.nu_prg_name_var)
#print "Line 242: nu_prg_name_var = " + self.nu_prg_name_var
def makeDirsAndHtml_ok(self):
if self.bln_you_saw_test_results == False:
strMsgBoxMsg = 'You should try the "Test" button before you hit the "Ok" button.'
os.system(r"C:\Apps\UtilitiesByMarc\MessageBoxe_SAVE_.vbs" + ' "' + strMsgBoxMsg + '"')
#subprocess.Popen(cmdline)
print strMsgBoxMsg
return
else:
self.nu_prg_name_var = self.qle.text()
self.resize_win2hold_html()
self.author_label.setText(self.nu_prg_name_var)
create_Html(self.nu_prg_name_var)
create_dirs(self.nu_prg_name_var)
#print "Line 282: nu_prg_name_var = " + self.nu_prg_name_var
def callMsgBoxFromOutsideThisClass(self):
# strCmdLine = r"C:\Apps\UtilitiesByMarc\MessageBoxe_SAVE_.vbs" + ' "Hello from Line 137"'
#os.system(strCmdLine)
pass
def main():
app = QtGui.QApplication(sys.argv)
ex = Example()
sys.exit(app.exec_())
if __name__ == '__main__':
#main()
app = QtGui.QApplication(sys.argv)
ex = Example()
sys.exit(app.exec_())
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