python - Understanding how `os.path.join` works with `os.path.expanduser` -


what line of code mean

datafolder = os.path.join(os.path.expanduser("~"), "data", "books")

does line create folder called datafolder , if can insert files , load file through line

!load getdata.py

from docs:

os.path.expanduser(path)

on unix , windows, return argument initial component of ~ or ~user replaced user‘s home directory.

in unix, home directory represented tilde (~) sign. using os.path.expanduser expands tilde actual path:

in [765]: os.path.expanduser("~") out[765]: '/users/coldspeed'

this string, along 'data' , 'books', joined os.path.join form qualified path:

in [766]: os.path.join(os.path.expanduser("~"), 'data', 'books') out[766]: '/users/coldspeed/data/books'

this convenient way specify home directory without having hardcode it.


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