Python file Handling

Table of Contents

• Python file Handling
  • file handling modes
  • read file
  • create/ writing file

Several functions for creating, reading, updating, and deleting files

file handling modes

"r" - Read - Default value. Opens a file for reading, error if the file does not exist

"a" - Append - Opens a file for appending, creates the file if it does not exist

"w" - Write - Opens a file for writing, creates the file if it does not exist

"x" - Create - Creates the specified file, returns an error if the file exists

"t" - Text - Default value. Text mode

"b" - Binary - Binary mode (e.g. images)

read file

demo.txt

Hello, Im a demo txt file.
this is the second line of this file.
Good bye~

open file and read

# _file = open("<file's location>", "<mode>")
# _print(_file.read(<the num of characters you want to get>))
_file = open("demo.txt", "r")
print(_file.read())

readline

# print(_file.readline())
_file = open("demo.txt", "r")
print(_file.readline())

file close

# _file.close()
_file = open("demo.txt", "r")
print(_file.readline())
_file.close()

create/ writing file

write/ overwrite file

# f.write("<contents>", "<mode>")
f = open("demofile2.txt", "a")
f.write("Now the file has more content!")
f.close()

# f = open("demofile2.txt", "r")
# print(f.read())

# f = open("<>")
f = open("myfile.txt", "x")