- #Python 2.7.9 else statement error software
- #Python 2.7.9 else statement error code
- #Python 2.7.9 else statement error free
#Python 2.7.9 else statement error code
Understanding the code prior to execution and including the necessary catch exception clause will help in avoiding the exception. In any programming or scripting language, it is completely possible to write program in a way that it can catch the expected errors. Our expected out is like: No such file or directory: ‘filethatdoesnotexist.txt’.Īnd as you can see, our program has thrown an exception saying the file passed in the program does not exist. Within out try, we have our first file operation, which is to open a file. Inside function, we start our try keyword, meaning every thing from this point will be looked for an error. Then we have our first function defined with name of something(). Our program starts with importing system files, as we will be working on Input Output operations. Code for the program with try except block is as follows.įile = open ( "filethatdoesnotexist.txt", 'r' ) Here we will demonstrate how we can catch a python IOError, or any other error using try except block. Here, we have not used any method to catch these error. Pointing out the error, on which line is occurred and the whole line of code is printed. So when the above code is executed properly, the output will be an error, IOError to be specific.Īs you can see, the output is as expected. We are not printing any output here, because we want to see the working of an error raising. 
Then we have our readline method which will read the content of the file and then our strip, which will remove the characters that are at start and end of the sentences. Firstly, we intend to pass the file details and access it. Then we have three operations over a file.
To explain the above code, we have our import files. Our first program will have few file operations, that will fail and the program will print the error. Given below are the examples mentioned: Example #1īasic implementation of code, where the code will throw the IOError. There are many other errors that can be encountered and based on the requirement of the code we have handle these error. Any of these reason could raise an IOError. So, basically, IOError is an exception type error that occurs when the file that we passed in as argument, does not exist or as a different name or the file location path is incorrect. Which will result in an error related to Input Output, which is IOError. But if the file that we passed, does not exist at the passed location or the file name has been changed, then the operation we intend to execute won’t happen. 
In a Python program, where we have a simple operation of print the content of a file, we pass the file name and path of the file location.The syntax is intended to help the programmers to solve the error and move forward. This helps us understand which file to look for or change the name for. At the end, is the name of the file that we have passed. The message explaining the reason for the error, which is common No such file or directory, meaning that the file name we passed in, is either not available at the location mention or the location is incorrect. Starting with the error name, IOError, followed by the error number that has occurred in a single program using the Errno keyword. IOError: No such file or directory: 'somefile.txt'
The syntax mentioned below is a standard format using which the occurrence of the error will be printed.
#Python 2.7.9 else statement error software
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#Python 2.7.9 else statement error free
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