creating temp files

temp1.py

# creating temp file using common pattern for making up names 
import os
import tempfile

print('Building a filename with PID:')
filename = 'custon_temp_file.{}.txt'.format(os.getpid())
with open(filename, 'w+b') as temp:
    print('temp:')
    print('  {!r}'.format(temp))
    print('temp.name:')
    print('  {!r}'.format(temp.name))
os.remove(filename)
"""
Output:
Building a filename with PID:
temp:
  <_io.BufferedRandom name='custon_temp_file.6216.txt'>
temp.name:
  'custon_temp_file.6216.txt'
 """

# creating temp file using tempfile module
import tempfile
with tempfile.TemporaryFile() as temp:
    print(temp)
    print(temp.name)
'''   
<tempfile._TemporaryFileWrapper object at 0x000001E562106F48>
C:\Users\sidha\AppData\Local\Temp\tmp00dwsbdt
'''

# reading and writing from a temp file 
# default mode of writing for a temp file is "w+b"
import tempfile
with tempfile.TemporaryFile() as temp:
    temp.write(b"This is a temp file")
    temp.seek(0)
    print(temp.read())
'''
b'This is a temp file'
'''

# opening the file in text mode
import tempfile
with tempfile.TemporaryFile(mode = "w+t") as temp:
    temp.writelines(['Line1\n','Line2\n'])
    temp.seek(0)
    print(temp.read())
'''
Line1
Line2
'''