Error: ‘str’ object has no attribute ‘isin’
Description: This error message is indicating that the ‘str’ object (a string) does not have an attribute called ‘isin’.
Cause: The cause of this error is usually due to mistakenly trying to use the ‘isin’ attribute on a string object when it is not available.
Example:
# Example 1:
s = "Hello"
result = s.isin("H") # This line will cause the error
print(result)
# Example 2:
s = "Hello"
if s.isin("H"): # This line will cause the error
print("Found")
In both examples above, the ‘isin’ attribute is mistakenly being used on a string object ‘s’. However, the ‘isin’ attribute does not exist for strings. Thus, the error is thrown.