import os

# change your parent dir accordingly

try:

dir_path,file_name1 = 'E:/GitHub/1) Git_Tutorials_Repo_Projects/core-python/Core_Python/exfiles/','WriteFileMode_w.txt'

f1 = open(os.path.join(dir_path,file_name1),'w')

f1.write("Today")

f1.write(" is")

f1.write(" awesome day")

f1.writelines(["Have a good day ahead"," Bye"])

''' After run first time comment above write statements and now run second time

it will override whole content'''

#f1.writelines(["Hey,How are you?","\nHow's your day?"])

print("Path : ",f1.name)

base_name = os.path.basename(dir_path+file_name1)

print("File name with extension : ",base_name)

print("File name with out extension (tuple) : ",os.path.splitext(base_name))

print("File name with out extension (file name) : ",os.path.splitext(base_name)[0],"\nExtension name : ",os.path.splitext(base_name)[1])

f1.close()

file_name2 = "WirteFileMode_w+.txt"

f2 = open(os.path.join(dir_path,file_name2),'w+')

f2.write("Today")

f2.write(" is")

f2.write(" awesome day")

f2.writelines(["Have a good day ahead", " Bye"])

''' After run first time comment above write statements and now run second time

and remove below comment. it will override whole content'''

#f2.writelines([" Hey,How are you?", "\nHow's your day?"])

print("<<Readable Mode w+ >> : ",f2.readable())

''' Setting a pointer at beginning '''

f2.seek(0)

print("<< Reading a file with mode w+ >>","\n",f2.read())

f2.close()

file_name3 = "WriteFileMode_a.txt"

f3 = open(os.path.join(dir_path, file_name3), 'a')

'''f3.write("Today")

f3.write(" is")

f3.write(" awesome day")

f3.writelines(["Have a good day ahead", " Bye"])'''

''' After run first time comment above write statements and now run second time

rather than a override content it will append. also remove below comment'''

#f3.writelines([" Hey,How are you?", "\nHow's your day?"])

file_name4 = "WriteFileMode_a+.txt"

f4 = open(os.path.join(dir_path, file_name4), 'a+')

f4.write("Today")

f4.write(" is")

f4.write(" awesome day")

f4.writelines(["Have a good day ahead", " Bye"])

''' After run first time comment above write statements and now run second time

rather than a override content it will append. also remove below comment'''

#f4.writelines([" Hey,How are you?", "\nHow's your day?"])

print("<<Readable Mode a+ >> : ", f4.readable())

''' Setting a pointer at beginning '''

f4.seek(0)

print("<< Reading a file with mode a+ >>", "\n", f4.read())

f4.close()

file_name5 = "WriteFileMode_wb.txt"

f5 = open(os.path.join(dir_path, file_name5), 'wb')

f5.write(bytearray([1,2,3,4]))

''' After run first time comment above write statements and now run second time

it will override. also remove below comment'''

#f5.write(bytearray([5,6,7,8]))

f5.close()

''' same wb+ read and write both '''

except (IOError,FileNotFoundError) as e:

print(e)