CODEWITHSUNDEEP
pythonpython-3.x
aemilius89
aemilius89

Reputation: 17

I get the following error AttributeError: __enter__ when only using one with block

When I try to save the file lines in a list I with the following code I get the below error:

Traceback (most recent call last):
  File "C:\Users\emiel\AppData\Roaming\Sublime Text 3\Packages\User\Making_a_list_from_file.py", line 7, in <module>
    with filename as file_object:
AttributeError: __enter__

This is the code:


with filename as file_object:
    lines=file_object.readlines()

for line in lines:
    print(line.strip())

Upvotes: 1

Views: 8200

Answers (1)

Blckknght
Blckknght

Reputation: 104722

The error is telling you that the object you're using in the with statement is not of the right type. __enter__ is one of the methods called as part of the context manager protocol, and the type you're using doesn't have that method.

Based on your variable name, it looks like you may be using a file name where you want to be using a file object. The error message will then make sense, as strings are not context managers the way file objects are. Try changing your with statement to:

with open(filename) as file_object:

Upvotes: 4

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