I feel like a complete idiot at the moment. I'm trying to populate data from a dataframe into prettytable for display. The reason I don't want to use pandas directly, is that it seems like a giant PITA to get number formatting specific to each column... which I know is easy in prettytable.
While I've used this package before... it just straight up isn't working.
a = PrettyTable
a.add_column("test",[1, 2])
TypeError: add_column() missing 1 required positional argument: 'column'
I've tried adding by row
a = PrettyTable
a.add_row("test",[1, 2])
AttributeError: 'str' object has no attribute '_field_names'
And then adding the field names
a = PrettyTable
a.field_names = ["1","2","3"]
a.add_row("test",[1, 2])
AttributeError: 'str' object has no attribute '_field_names'
I'm using the latest version, installed via pip, v3.3.0. I'm running python v3.9.6 through Jupyter Notebook.
You need to use parentheses to get an instance of the class:
a = PrettyTable()
a.add_column("test",[1, 2])
If you forget them, it references the class.
See this example:
class Foo:
def method(self, *args):
print(args)
Foo.method(1, 2, 3) # (2, 3)
Foo().method(1, 2, 3) # (1, 2, 3)
If you use the class, the first parameter is passed as self.
If you use the instance, the instance is automatically passed as self.