End of file when reading a line in python
Running it like this produces: Show
I suspect IDLE is simply passing a single string to your script. The first
Running
Notice the first print statement prints the entire string So a simple pipe such as
the one I used only allows you to pass one string. Thus you can only call
does. Note, there are other ways to pass input to your program. If you had run
So as we can see in the pictures above, despite having produced the expected output, our test case fails due to a runtime error EOFError i.e., End of File Error. Let's understand what is EOF and how to tackle it. What is EOFErrorIn Python, an EOFError is an exception that gets raised when functions such as input() or raw_input() in case of python2 return end-of-file (EOF) without reading any input. When can we expect EOFErrorWe can expect EOF in few cases which have to deal with input() / raw_input() such as:
Enter fullscreen mode Exit fullscreen mode The code above gives EOFError because the input statement inside Do not worry if you don't understand the code or don't get context of the code, its just a solution of one of the problem statements on HackerRank 30 days of code challenge which you might want to
check How to tackle EOFErrorWe can catch EOFError as any other error, by using try-except blocks as shown below :
Enter fullscreen mode Exit fullscreen mode You might want to do something else instead of just printing "EOF" on the console such as:
Enter fullscreen mode Exit fullscreen mode In the code above, python exits out of the loop if it encounters EOFError and we pass our test case, the problem due to which this discussion began... Hope this is helpful How read line at end of file Python?Using "While" Statement
This method fetches the lines one by one instead of retrieving all the text at one go. In the above code, the while statement checks for a Boolean value to be True. The readline () method reads the text line by line. When it reaches the end of the file, the execution of the while loop stops.
How do you fix EOF when reading a line?Use a try / except block to get rid of the EOF error.
What does EOF when reading a line mean in Python?Leave the input text box empty. Then, press Run test. You should get an error like EOFError: EOF when reading a line. The acronym EOF stands for End Of File. This message literally means that the program called input() but failed to have any available input to read.
How do I fix the end of file error in Python?BaseException -> Exception -> EOFError
The best practice to avoid EOF in python while coding on any platform is to catch the exception, and we don't need to perform any action so, we just pass the exception using the keyword “pass” in the “except” block.
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