How do you read data from a file in Python?

Question

Aryan Kumar · Answer

Sure, here is how to read data from a file in Python:
Python
def read_file(filename):
  """Reads data from a file.
  Args:
    filename: The name of the file to read.
  Returns:
    The contents of the file as a string.
  """
  with open(filename, 'r') as f:
    data = f.read()
  return data
if __name__ == '__main__':
  data = read_file('data.txt')
  print(data)
This code first defines a function called read_file() that takes a filename as an argument and returns the contents of the file as a string. The function uses the
open() function to open the file in read mode. The read() method of the file object is then used to read the contents of the file.
The read_file() function is then called with the filename data.txt as an argument. The contents of the file are then printed to the console.
To run this code, you can save it as a Python file and then run it from the command line. For example, if you save the code as
read_file.py, you can run it by typing the following command into the command line:
Code snippet
python read_file.py
This will print the contents of the file data.txt to the console.
Here are some other ways to read data from a file in Python:
You can use the readline() method to read one line of data from a file at a time.You can use the readlines() method to read all of the lines of data from a file as a list of strings.You can use the with statement to open a file and automatically close it when you are finished with it.

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How do you read data from a file in Python?

Utpal Vishwas

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