 | Python has a rich cross-platform operating system (OS) interface |
| Skip Unix- or DOS-specific commands; do all OS operations in Python! |
| Safe creation of a subdirectory:
dir = case # subdirectory name
import os, shutil
if os.path.isdir(dir): # does dir exist?
shutil.rmtree(dir) # yes, remove old files
os.mkdir(dir) # make dir directory
os.chdir(dir) # move to dir
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