How to replace the exact string and not a part of the string, please?
l = ['1.5', '12.3', '.', 'A', '.', '.']
l = [i.replace('.', 'nan') for i in l]
print(l)
I obtain:
['1nan5', '12nan3', 'nan', 'A', 'nan', 'nan']
Desired result:
['1.5', '12.3', 'nan', 'A', 'nan', 'nan']
>Solution :
You aren’t replacing in the string, your doing a string comparison
['nan' if i == '.' else i for i in l]