Use a variable string as object parameter in python

Question

How to call for the object parameter if the parameter is a variable string. In this case is variable beacuse it is the header in a database column_header = "variable string"

lambda rec: (rec.column_header) another case item.column_header = new_value

What do you mean by "object parameter"?

shreyasm-dev
– shreyasm-dev

2020-11-19 18:05:14 +00:00
Commented Nov 19, 2020 at 18:05 — shreyasm-dev
– shreyasm-dev, Commented Nov 19, 2020 at 18:05

azro · Accepted Answer · 2020-11-19 18:06:27Z

4

To read a property from a string as name use getattr()
```
getattr(obj, name)
```
To set a property from a string as name use setattr()
```
setattr(obj, name, value)
```

In your case it'd mean

Get

column_header = "variable string"
lambda rec: getattr(rec, column_header)

Set

column_header = "variable string"
setattr(item, column_header, new_value)

answered Nov 19, 2020 at 18:06

azro

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