TabError: inconsistent use of tabs and spaces in indentation

[hobbyist]

Hello,

I am getting this error:

Error:
UbuntuUser@ubuntu:~/Desktop/PyQT$ python3 pycalc.py
  File "pycalc.py", line 80
    for btnText, pos in buttons.items():
                                       ^
TabError: inconsistent use of tabs and spaces in indentation

when running this code:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145

# Filename: pycalc.py   """PyCalc is a simple calculator built using Python and PyQt5."""   import sys   # Import QApplication and the required widgets from PyQt5.QtWidgets from PyQt5.QtWidgets import QApplication from PyQt5.QtWidgets import QMainWindow from PyQt5.QtWidgets import QWidget from PyQt5.QtCore import Qt from PyQt5.QtWidgets import QGridLayout from PyQt5.QtWidgets import QLineEdit from PyQt5.QtWidgets import QPushButton from PyQt5.QtWidgets import QVBoxLayout from functools import partial   __version__ = '0.1' __author__ = 'Leodanis Pozo Ramos'   # Create a subclass of QMainWindow to setup the calculator's GUI class PyCalcUi(QMainWindow):     """PyCalc's View (GUI)."""     def __init__(self):         """View initializer."""         super().__init__()         # Set some main window's properties         self.setWindowTitle('PyCalc')         self.setFixedSize(800, 600)         # Set the central widget and the genral layout         self.generalLayout = QVBoxLayout()         self._centralWidget = QWidget(self)         self.setCentralWidget(self._centralWidget)         # Create the display and the buttons         self._createDisplay()         self._createButtons()                 def _createDisplay(self):         """Create the display"""         # Create the display widget         self.display = QLineEdit()                   # Set some display's properties         self.display.setFixedHeight(35)         self.display.setAlignment(Qt.AlignRight)         self.display.setReadOnly(True)                   # Add the display to the general layout         self.generalLayout.adddWidget(self.display)               def _createButtons(self):         """Create the buttons"""         self.buttons = {}         buttonsLayout = QGridLAyout()                   # Button text | position on the QGridLayout         buttons = {'7': (0,0),                    '8': (0,1),                    '9': (0,2),                    '/': (0,3),                    'C': (0,4),                    '4': (1,0),                    '5': (1,1),                    '6': (1,2),                    '*': (1,3),                    '(': (1,4),                    '1': (2,0),                    '2': (2,1),                    '3': (2,2),                    '-': (2,3),                    ')': (2,4),                    '0': (3,0),                    '00': (3,1),                    '.': (3,2),                    '+': (3,3),                    '=': (3,4),                    }                   # Create the buttons and add them to the grid layout         for btnText, pos in buttons.items():             self.buttons[btnText] = QPushButton(btnText)             self.buttons[btnText].setFixedSize(40, 40)             buttonsLayout.addWidget(self.buttons[btnText], pos[0], pos[1])                       # Add buttonsLayout to the general layout         self.generalLayout.addLayout(buttonsLayout)           class PyCalcUI(QMainWindow):        # Snip     def setDisplayText(self, text):         """Set display's text. """         self.display.setText(text)         self.display.setFocus()           def displayText(self):         """Get display's text."""         return self.display.text()               def clearDisplay(self):         """Clear the display."""         self.setDisplayText('')   class PyCalcCtrl:     """PyCalc Controller class."""     def __init__(self, view):               """Controller initiallizer."""         self._view = view               # Connect signals and slots         self._connectSignals()               def _buildExpression(self, sub_exp):               """Build expression."""         expression = self._view.displayText() + sub_exp         self._view.setDisplayText(expression)               def _connectSignals(self):         """Connect signal and slots."""                   for btnText, btn in self._view.buttons.items():             if btnText not in {'=', 'C'}:                 btn.clicked.connect(partial(self._buildExpression, btnText))                          self._view.buttons['C'].clicked.connect(self._view.clearDisplay)                   # Client code def main():     """Main function."""     # Create an instance of QApplication     pycalc = QApplication(sys.argv)           # Show the calculator's GUI     view = PyCalcUi()     view.show()           # Create instance of the model and the controller     PyCalcCtrl(view = view)           # Execute the calculator's main loop     sys.exit(pycalc.exec_())   if __name__ == '__main__':     main()

I took the code from this website:
https://realpython.com/python-pyqt-gui-calculator/

I am trying for hours to fix the problem without any success. Do you see the error??

[deanhystad]

The error message complains that a mix tabs and spaces are being used to indent code somewhere around line 80. I would look at the buttons dictionary. I used to get this error a lot when editing code in Notepad++ before I configured the editor to use spaces instead of tabs when editing Python code.

I cannot find where tabs are being used. I even copied the file to a file and wrote a Python program to look for tabs and found none. But it may be that the act of posting the code replaced the tabs with spaces.

[perfringo]

Copying from webpage may do some tricks so results are inconclusive but after pasting this code into Vim it was full of red. Every single empty line started with tabs, almost every conditional line ended with trailing whitespaces. (my vimrc is set to "Display tabs at the beginning of a line in Python mode as bad." and "Make trailing whitespace be flagged as bad.")

As I noted before - copying and pasting from webpage can do tricks but it would not hurt to go over file and correct where needed.

[davide73_italy]

Hello,

I am getting this error:

Error:
UbuntuUser@ubuntu:~/Desktop/PyQT$ python3 pycalc.py
  File "pycalc.py", line 80
    for btnText, pos in buttons.items():
                                       ^
TabError: inconsistent use of tabs and spaces in indentation

when running this code:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145

# Filename: pycalc.py   """PyCalc is a simple calculator built using Python and PyQt5."""   import sys   # Import QApplication and the required widgets from PyQt5.QtWidgets from PyQt5.QtWidgets import QApplication from PyQt5.QtWidgets import QMainWindow from PyQt5.QtWidgets import QWidget from PyQt5.QtCore import Qt from PyQt5.QtWidgets import QGridLayout from PyQt5.QtWidgets import QLineEdit from PyQt5.QtWidgets import QPushButton from PyQt5.QtWidgets import QVBoxLayout from functools import partial   __version__ = '0.1' __author__ = 'Leodanis Pozo Ramos'   # Create a subclass of QMainWindow to setup the calculator's GUI class PyCalcUi(QMainWindow):     """PyCalc's View (GUI)."""     def __init__(self):         """View initializer."""         super().__init__()         # Set some main window's properties         self.setWindowTitle('PyCalc')         self.setFixedSize(800, 600)         # Set the central widget and the genral layout         self.generalLayout = QVBoxLayout()         self._centralWidget = QWidget(self)         self.setCentralWidget(self._centralWidget)         # Create the display and the buttons         self._createDisplay()         self._createButtons()                 def _createDisplay(self):         """Create the display"""         # Create the display widget         self.display = QLineEdit()                   # Set some display's properties         self.display.setFixedHeight(35)         self.display.setAlignment(Qt.AlignRight)         self.display.setReadOnly(True)                   # Add the display to the general layout         self.generalLayout.adddWidget(self.display)               def _createButtons(self):         """Create the buttons"""         self.buttons = {}         buttonsLayout = QGridLAyout()                   # Button text | position on the QGridLayout         buttons = {'7': (0,0),                    '8': (0,1),                    '9': (0,2),                    '/': (0,3),                    'C': (0,4),                    '4': (1,0),                    '5': (1,1),                    '6': (1,2),                    '*': (1,3),                    '(': (1,4),                    '1': (2,0),                    '2': (2,1),                    '3': (2,2),                    '-': (2,3),                    ')': (2,4),                    '0': (3,0),                    '00': (3,1),                    '.': (3,2),                    '+': (3,3),                    '=': (3,4),                    }                   # Create the buttons and add them to the grid layout         for btnText, pos in buttons.items():             self.buttons[btnText] = QPushButton(btnText)             self.buttons[btnText].setFixedSize(40, 40)             buttonsLayout.addWidget(self.buttons[btnText], pos[0], pos[1])                       # Add buttonsLayout to the general layout         self.generalLayout.addLayout(buttonsLayout)           class PyCalcUI(QMainWindow):        # Snip     def setDisplayText(self, text):         """Set display's text. """         self.display.setText(text)         self.display.setFocus()           def displayText(self):         """Get display's text."""         return self.display.text()               def clearDisplay(self):         """Clear the display."""         self.setDisplayText('')   class PyCalcCtrl:     """PyCalc Controller class."""     def __init__(self, view):               """Controller initiallizer."""         self._view = view               # Connect signals and slots         self._connectSignals()               def _buildExpression(self, sub_exp):               """Build expression."""         expression = self._view.displayText() + sub_exp         self._view.setDisplayText(expression)               def _connectSignals(self):         """Connect signal and slots."""                   for btnText, btn in self._view.buttons.items():             if btnText not in {'=', 'C'}:                 btn.clicked.connect(partial(self._buildExpression, btnText))                          self._view.buttons['C'].clicked.connect(self._view.clearDisplay)                   # Client code def main():     """Main function."""     # Create an instance of QApplication     pycalc = QApplication(sys.argv)           # Show the calculator's GUI     view = PyCalcUi()     view.show()           # Create instance of the model and the controller     PyCalcCtrl(view = view)           # Execute the calculator's main loop     sys.exit(pycalc.exec_())   if __name__ == '__main__':     main()

I took the code from this website:
https://realpython.com/python-pyqt-gui-calculator/

I am trying for hours to fix the problem without any success. Do you see the error??

I have already forked Python to have proper { } blocks and get rid of this fancy indentation rules. If there is anybody interested I can make my git become public or share the diff file. To be clear, the forked version can still continue to work on indented-style files, you can just decide every time you open a statement if you want to use the indent-style or { }.

Yoriz write Jun-16-2021, 06:01 AM:
Posting the same thing in old threads about some forked version of python
https://python-forum.io/thread-31669-pos...#pid143419
https://python-forum.io/thread-25521-pos...#pid143418
https://python-forum.io/thread-26494-pos...#pid143420