Example of reading/writing files in Python.

read_it.py

# Read It
# Demonstrates reading from a text file

print("Opening and closing the file.")
text_file = open("read_it.txt", "r")
text_file.close()

print("\nReading characters and closing the file.")
text_file = open("read_it.txt", "r")
print(text_file.read(1))
print(text_file.read(5))
text_file.close()

print("\nReading the entire file at once.")

text_file = open("read_it.txt", "r")
whole_thing = text_file.read()
print(whole_thing)
text_file.close()

print("\nReading characters from a line.")
text_file = open("read_it.txt", "r")
print(text_file.readline(1))
print(text_file.readline(5))
text_file.close()

print("\nReading one line at a time.")
text_file = open("read_it.txt", "r")
lines = text_file.readlines()
print(lines)
print(len(lines))
for line in lines:
    print(line)
text_file.close()

print("\nLooping through the file, line by line")
text_file