my_file.txt

file = open("my_file.txt")
content = file.read()
print(content)
file.close()

with open("my_file.txt") as file:
	contents = file.read()
	print(contents)

#Write
with open("my_file.txt", mode="w") as file:
	file.write("New text.")

#Append
with open("my_file.txt", mode="a") as file: 
	file.write("\\nNew text.")

*When you try to open a file in write mode and that file doesn't exist, then it's going to actually create it for you from scratch.