Python | shutil.copy2() method

Shutil module in Python provides many functions of high-level operations on files and collections of files. It comes under Python’s standard utility modules. This module helps in automating process of copying and removal of files and directories.
shutil.copy2() method in Python is used to copy the content of source file to destination file or directory. This method is identical to shutil.copy() method but it also try to preserves the file’s metadata.
Source must represent a file but destination can be a file or a directory. If the destination is a directory then the file will be copied into destination using the base filename from source. Also, destination must be writable. If destination is a file and already exists then it will be replaced with the source file otherwise a new file will be created.
 

Syntax: shutil.copy2(source, destination, *, follow_symlinks = True)
Parameter: 
source: A string representing the path of the source file. 
destination: A string representing the path of the destination file or directory. 
follow_symlinks (optional) : The default value of this parameter is True. If it is False and source represents a symbolic link then it attempts to copy all metadata from the source symbolic link to the newly-created destination symbolic link. This functionality is platform dependent.
Note: The ‘*’ in parameter list indicates that all following parameters (Here in our case ‘follow_symlinks’) are keyword-only parameters and they can be provided using their name, not as positional parameter.
Return Type: This method returns a string which represents the path of newly created file. 
 

Code #1: Use of shutil.copy2() method to copy file from source to destination 
 

Before copying file:
['hrithik.png', 'test.py', 'sample.txt', 'file.text', 'copy.cpp']
Metadata:  os.stat_result(st_mode=33188, st_ino=801113, st_dev=2056, st_nlink=1,
st_uid=1000, st_gid=1000, st_size=84, st_atime=1558866178, st_mtime=1558866156, 
st_ctime=1558866156) 

After copying file:
['hrithik.png', 'test.py', 'sample.txt', 'file.text', 'file(copy).txt', 'copy.cpp']
Metadata: os.stat_result(st_mode=33188, st_ino=801111, st_dev=2056, st_nlink=1,
st_uid=1000, st_gid=1000, st_size=84, st_atime=1558866178, st_mtime=1558866156,
st_ctime=1558933947)
Destination path: /home/User/Documents/file(copy).txt

Code #2: If destination is a directory 
 

After copying file:
['input.txt', 'GeeksForGeeks', 'output.txt', 'file.txt', 'web.py', 'tree.cpp']
Destination path: /home/User/Desktop/file.txt

Code #3: Possible errors while using shutil.copy2() method 
 

Traceback (most recent call last):
  File "try.py", line 26, in 
    dest = shutil.copy(source, destination)
  File "/usr/lib/python3.6/shutil.py", line 241, in copy2
    copyfile(src, dst, follow_symlinks=follow_symlinks)
  File "/usr/lib/python3.6/shutil.py", line 104, in copyfile
    raise SameFileError("{!r} and {!r} are the same file".format(src, dst))
shutil.SameFileError: '/home/User/Desktop/file.txt' and  '/home/User/Desktop/file.txt'
are the same file

Code #4: Handling errors while using shutil.copy2() method 
 

Source and destination represents the same file.

Reference: https://docs.python.org/3/library/shutil.html