Read File

To read files in Python, you can use the open() function. The open() function takes the path to the file and the mode in which to open the file as arguments.

The mode specifies how the file will be opened. The r mode is the default mode and opens the file for reading.

Python

# Open the file "myfile.txt" for reading
f = open("myfile.txt", "r")
 

Once you have opened the file, you can use the read() method to read the contents of the file. The read() method returns the contents of the file as a string.

Python

# Read the contents of the file "myfile.txt"
contents = f.read()
 

You can also use the readline() method to read a single line from the file. The readline() method returns the line as a string.

Python

# Read a single line from the file "myfile.txt"
line = f.readline()
 

To read the entire file line by line, you can use a for loop. The following code reads the entire file "myfile.txt" line by line and prints each line to the console:

Python

# Open the file "myfile.txt" for reading
f = open("myfile.txt", "r")

# Read the entire file line by line
for line in f:
    print(line)

# Close the file
f.close()
 

Once you have finished reading from the file, you should close it. This will release the file resources and ensure that the data in the file is saved.

Example:

Python

# Open the file "myfile.txt" for reading
f = open("myfile.txt", "r")

# Read the contents of the file
contents = f.read()

# Close the file
f.close()

# Print the contents of the file
print(contents)
 

This code will read the entire contents of the file "myfile.txt" and print it to the console.