Using a QTableWidget as custom class

1

I ran into an issue when attempting this.

I have a separate python file that has a single class which is based on a QTableWidget. I pass parameters to the init and set various class instance variables for the parameters passed. I have a methods for initially creating the table which defines the columns and setups the column headers. Another method loads the data from its passed in parameter an then sizes the table.

All is fine and I know the QTableWidget is being constructed and built but when I assign it to an instance in my main.py the table comes up blank. The only way I can get the table to display properly in my main.py is to assign the built table to an instance variable (table) from within it’s class.

Must be some misconception on my part. Any suggestions appreciated. Code provided is not complete and just to serve as explanation to my issue.

main.py:

from formations import formationsgrid

…

self.datagrid = formationsgrid(self.playflag, self.griddata).table (without the table grid is blank)

formations.py:

class formationsgrid(QTableWidget):

def init(self, formation_type, formation_data):

  super().__init__()

  self.type = formation_type
  self.data = formation_data
  self.table = None

  self.create_table()
  self.load_data()

def create_table(self):

  self.table = QTableWidget()
  ...

def load_data(self):

  self.table.setRowCount(len(self.data))
  
  for rec in self.data:
    ...

  if self.table.rowCount() > 6:
    self.table.setFixedSize(834, 254)
  elif self.table.rowCount() > 0:
    ...
  else
    self.table.setFixedSize(834, 98)
2

Turns out that I didn’t need to store my table within the defining class. I continued to google questions on how to achieve this and one AI answer provided a sample showing basically what I wanted. The difference from my code was in my dunder lines. The init showed a parameter of parent=None and the super having a parameter of parent. I added these and adjusted my previous code not to use the internal table variable and Voila my custom table instantiated properly !

Now on to my other graphics challenges …