How to Write to File in Python

Writing files in Python involves opening a file in write mode, performing the desired write operations, and then properly closing the file. There are two ways to write files in Python:

  1. Using the open() function: The open() function takes two arguments: the file name and the mode. The mode can be "w" for writing, "r" for reading, "a" for appending, and "rb" for reading binary data.
  2. Using the with statement: The with statement ensures that the file is closed properly, even if an exception is raised.

How to write a file using the open() function

def write_file(file_name, text): with open(file_name, "w") as file: file.write(text) write_file("my_file.txt", "This is my text.")

This code will create a file called my_file.txt and write the string "This is my text." to the file.

How to write a file using the with statement

def write_file(file_name, text): with open(file_name, "w") as file: file.write(text) with open("my_file.txt", "w") as file: file.write("This is my text.")

This code will also create a file called my_file.txt and write the string "This is my text." to the file.

Both approaches achieve the same result of writing content to a file. The "with" statement automatically handles the file closing, while the second approach explicitly closes the file using the close() method.

Conclusion

Remember to handle exceptions properly when working with file operations, especially when writing, to ensure the integrity of your data and to prevent unexpected program crashes.






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