[FIXED] Comparing string to multiple strings in python

Issue

I'm trying to compare cell value of dataframe to some strings and concat that matched string in a variable but I'm getting error. Could someone please check..!

route=''
for b in range(10):
   route+  = ('-'+ rail[0].index[b] +'-') if (rail[x].index[b] == ('WD' | 'POT' | 'NGI'))

Error I'm getting is:-

unsupported operand type(s) for |: 'str' and 'str'

Edit: Adding some index values to work on

Index(['DW', 'NG', 'NGI', 'DW', 'WD', 'NGI', 'NF', 'FGH', 'NNI',
   'DWD','NGH', 'POT', 'NGI', 'DW', 'POT', 'NNGI', 'GH', 'NH', 'NGI',
   'WD'])

Solution

Assuming you are trying to check whether your rail[x].index[b] is either of ('WD' | 'POT' | 'NGI') on each iteration,

Try the below snippet if it is the case,

route=''
for b in range(10):
   route += ('-'+ rail[0].index[b] +'-') if (rail[x].index[b] in ('WD', 'POT', 'NGI'))

Quick Check:

print("WD" == ('WD' | 'POT' | 'NGI'))

TypeError: unsupported operand type(s) for |: 'str' and 'str'

print("WD" in ('WD' , 'POT' , 'NGI'))

True

Answered By - Saravanakumar V