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import sys
import shutil
import ply, ply.lex, ply.yacc
from pathlib import Path
TARGET = "ply"
def main(argv):
user = False
if len(argv) > 1:
if argv[1] != '--user':
raise SystemExit('usage: python install.py [--user]')
else:
user = True
site_packages = [p for p in sys.path if p.endswith('site-packages')]
path = Path(site_packages[0] if user else site_packages[-1]) / TARGET
if path.exists():
shutil.rmtree(path)
shutil.copytree(TARGET, path)
print(f'{TARGET} installed at {path}')
if __name__ == '__main__':
main(sys.argv)
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