Python Write Create Files: Beginner python tutorials 25 | Better4Code
Python Write Create Files: Python is a powerful programming language that allows users to create and manipulate files of various formats. Whether you are working with text files, CSV files, or binary files, Python provides numerous functions and modules to help you create and write data to them. In this article, we will explore the various ways to create and write to files in Python and provide examples of how to use them.
Creating a File
Before we can write to a file in Python, we need to create it using the built-in open() function. The syntax for creating a file is as follows:
file_object = open("filename", "mode")
Here, filename is the name of the file we want to create, and mode specifies how we want to create it. The mode parameter can take several values, including:
“w”: write mode, truncating the file if it exists
“x”: exclusive creation mode, failing if the file already exists
“a”: append mode, writing to the end of the file if it exists
“b”: binary mode, for non-text files
“t”: text mode, for text files (default)
For example, to create a new file called “example.txt” in write mode, we would use the following code:
file_object = open("example.txt", "w")
Writing to a File
Once we have created a file, we can write to it using the write() method. The write() method writes a string to the file.
file_object = open("example.txt", "w")
file_object.write("Hello, world!")
Alternatively, we can write multiple lines to a file using the writelines() method. The writelines() method writes a list of strings to the file, where each string represents a line in the file.
file_object = open("example.txt", "w")
lines = ["Hello, world!n", "This is a new line.n"]
file_object.writelines(lines)
Closing a File
After we have finished writing to a file, we should close it using the close() method to free up system resources.
file_object = open("example.txt", "w")
file_object.write("Hello, world!")
file_object.close()
