Check if a number exists in list python

- Check if a element exists in list python
- Check if a string exists in list python
- Check if index exists in list python
- Check if item exists in list python
- Check if key exists in list python
- Check if object exists in list python
- Check if dict exists in list python
- Check if variable exists in list python
- Check if word exists in list python
- Check if a list exists in another list python
- Check if dictionary key exists in list python
- Check if tuple exists in list python
- Check if dictionary exists in list python