The contents of the text file can be seen in the terminal once we execute the code. This method allows us to read all characters from a file until the end. Now within this context manager we need to initialize the method read() as follows data = f.read(). Once we hit the enter button, we realise that we have an indention, we are now within the context manager. How to read a text file in Python – Using the read method We are also going to open the file as f followed by a full colon. This function accepts quite a number of arguments, however, the two main arguments include the name of the file that we intend to open and the mode that we want to open it. The context manager is made up of two main keywords with and the function open(). Using the context manager guarantees that files will be closed even if there is an exception and the program is forced to terminate prematurely.įurthermore, we do not need to explicitly define the close method since files are closed automatically. As shown below.į = open('sample.txt', encoding = 'utf - 8')Īlthough this method ensures that files are properly closed even when there is an exception, the best way to open and close files is by using the context manager. Exceptions while performing file operations can be safely handled by wrapping the open() function with a try and catch block. This is the best way of building efficient programs that minimize the usage of computer resources such as memory. When working with large programs more often than not several files may be involved, in such scenarios we need to make sure that files are properly closed. While this method works just fine it is not guaranteed that the files will be closed after their usage, especially if an exception occurs while performing file operations. The syntax of using the keyword open() is as shown below. In python there are a couple of ways of handling resources, these include the use of the inbuilt keyword open(). How to read a text file in Python – Main methodsĮvery programming language provides unique ways of handling resources such as text files. In this article, you’ll learn how to read a text file in Python. ![]() More often these files are in common formats such as CSV, text file, JSON etcetera. Now reading and writing files is something that is done very often when writing programs in Python or any other programming language. The management of resources such as text files or database connections is a very important aspect of any programming language. How to read a text file in Python – Using the read method.File handling within a try-except block.How to read a text file in Python – Main methods.
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